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Text replacement - "[[Jobs Module" to "[[Job Module"
This page is linked from the [[Getting Started]] Section.
The options listed on this page influence the way how database [[Commands|commands]] are executed and XQuery expressions are evaluated. Three data types Two kinds of options exist: strings, numbers, and booleans.
* Values can be changed with the '''[[Commands#SETGlobal Options|SETGlobal Options]] command and requested ''' are valid for all BaseX instances in the same JVM. This is particularly relevant if you are working with the [[Commands#GET|GET]] commandclient/server architecture. All values are * '''Local options'statically bound'' (all remaining ones) are specific to a database client or session; they stay valid until they are changed once again by another operation. If an option is of type boolean, and if no value is specified, its existing value will be inverted.
* Values of options are either ''strings'', ''numbers'' or ''booleans''. Options can also be set in are ''static'' and not bound to a single operation (for example, the prolog of XQuery expressionsnext command). In the option declaration, keys need Various ways exist to be prefixed with {{Code|db:}}. All values will be reset after the evaluation of a queryaccess and change options:
* The current value of an option can be requested with the {{Command|SHOW OPTIONS}} command. Local options can be changed via {{Command|SET}} (all global options, except for {{Option|DEBUG}}, can only be changed at startup time). If an option is of type ''boolean'', and if no value is specified, its current value will be inverted. * The {{Code|.basex}} [[Configuration#Configuration Files|configuration file]] is parsed by every new local BaseX instance. It contains all global options. Local options can be specified at the end of the file after the {{Code|Local Options}} comment: <pre classsyntaxhighlight lang="brush:xqueryperl">declare option db:key 'value';# General OptionsDEBUG = false
...
</pre>
# Local OptionsCATALOG = etc/w3-catalog.xml</syntaxhighlight> * Initial values for global options can also be specified via system properties, which can e.g. be passed on with the [https://docs.oracle.com/en/java/javase/11/tools/java.html -D flag] on command line, or using [https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/System.html#setProperty(java.lang.String,java.lang.String) System.setProperty()] before creating a BaseX instance. The specified keys need to be prefixed with {{VersionCode|7org.basex.4}}. An example: <syntaxhighlight lang="perl">java -Dorg.basex.CATALOG=etc/w3-catalog.xml -cp basex.jar org.basex.BaseX -c"SHOW OPTIONS catalog"CATALOG: Options etc/w3-catalog.xml</syntaxhighlight> * If the Mac OS X packaged application is used, global options can be locally set within the Info.plist file within the Contents folder of the application package. For example: <syntaxhighlight lang="xml"><key>JVMOptions</key><array> <string>-Dorg.basex.CATALOG=etc/w3-catalog.xml</string></array></syntaxhighlight> * In a [[Web Application]], the default can be adjusted in the {{Code|web.xml}} file as follows: <syntaxhighlight lang="xml"><context-param> <param-name>org.basex.catalog</param-name> <param-value>etc/w3-catalog.xml</param-value></context-param></syntaxhighlight> * In XQuery via pragma expressions. Note that, at least for now, local pragmas will have no effect on most options can be set via option declarations and [[UpdateXQuery Extensions#Pragmas|update pragmas]]. If options are changed by operationsin the [[GUI]], as these the underlying commands will be evaluated at listed in the very end of a query[[GUI#Visualizations|Info View]]. The following query preserves whitespaces from the parsed XML string:<br/><br/>
<pre class="brush:xquery">(# db:chop false #) { parse-xml('<xml> hi </xml>') }</pre>Global Options=
* If Global options are implicitly changed by operations constants. They can only be set in the configuration file or via system properties (see above). One exception is the [[GUI#debug|DEBUG]]option, the underlying commands will which can also be listed in the changed at runtime by users with [[GUI#VisualizationsUser Management|Info Viewadmin permissions]].<br/>&nbsp;
=Main =General Options== ===DEBUG===
The main options are only available from the [{| width='100%'|- valign="top"| width='120' | '''Signature'''|{{Code|DEBUG [Standalone Mode]boolean] }}|- valign="top"| '''Default'''|{{Code|false}}|- valign="top"| '''Summary'''|Sends internal debug info to STDERR. This option can be turned on to get additional information for development and [[Database Server]] instances of BaseX, idebugging purposes.e., they cannot It can also be changed by database clients. They are stored in the triggered on [[ConfigurationCommand-Line Options#Configuration FilesBaseX Standalone|.basex config filecommand line]], which is opened by every new BaseX instance:via <code>-d</code>.|}
===DBPATH===
 {|width='100%'|-valign="top"| width='90120' | '''Signature'''
|{{Code|DBPATH [path]}}
|-valign="top"
| '''Default'''
|<code>[[Configuration#Database Directory|{home}/BaseXData]]</code> or <code>[[Configuration#Database Directory|{home}/data]]</code>|-valign="top"
| '''Summary'''
|Points to the directory in which all databases are located.<br/> '''Note:''' this option can only be changed if no database is currently opened. If the option is changed, existing databases will not be moved to the new location.
|}
===REPOPATHLOGPATH=== {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|REPOPATH LOGPATH [path]}}|-valign="top"
| '''Default'''
|<code>[[Configuration#Database Directory|{home}/BaseXRepo]].logs</code>|-valign="top"
| '''Summary'''
|Points to the directory in which all [[RepositoryLogging|log files]], in which all XQuery modules are locatedstored.<br/>'''Note:''' if Relative paths will be resolved against the option is changed, BaseX needs to be restarted in order to activate existing packages and avoid side effects{{Option|DBPATH}} directory.
|}
===DEBUGREPOPATH=== {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|DEBUGREPOPATH [path]}}|-valign="top"
| '''Default'''
|<code>[[Configuration#Database Directory|{{Code|false}home}/repo]]</code>|-valign="top"
| '''Summary'''
|Sends internal debug info Points to STDERR. This option can be turned on to get additional information for development and debugging purposesthe [[Repository]], in which all XQuery modules are located.
|}
===LANG===
 {|width='100%'|-valign="top"| width='90120' | '''Signature'''
|{{Code|LANG [language]}}
|-valign="top"
| '''Default'''
|{{Code|English}}
|-valign="top"
| '''Summary'''
|Specifies the interface language. Currently, seven languages are available: 'English', 'German', 'French', 'Dutch', 'Italian', 'Japanese', and 'Vietnamese'. BaseX needs to be restarted in order to activate the new language.
|}
===LANGKEY===
 {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|LANGKEY[boolean]}}|- valign="top"| '''Default'''|{{Code|false}}|- valign="top"| '''Summary'''|Prefixes all texts with the internal language keys. This option is helpful if BaseX is translated into another language, and if you want to see where particular texts are displayed.|} ===FAIRLOCK=== {| width='100%'|- valign="top"| width='120' | '''Signature'''|{{Code|FAIRLOCK [boolean]}}|-valign="top"
| '''Default'''
|{{Code|false}}
|-valign="top"
| '''Summary'''
|Prefixes all texts with Defines the locking strategy:* By default, non-fair is used. Read transactions will be favored, and transactions that access no databases can be evaluated even if the internal language keyslimit of parallel transactions (specified via {{Option|PARALLEL}}) has been reached. This option prevents update operations from blocking all other requests. For example, the DBA can further be used to see which jobs are running, even if the queue is helpful if BaseX full.* If fair locking is translated into another languageenabled, read and write transactions will be treated equally (first in, first out). This avoids starvation of update operations, and it should be used if you want to see where particular texts are displayedthe prompt evaluation of update operations is critical. BaseX needs to |} ===CACHETIMEOUT=== {| width='100%'|- valign="top"| width='120' | '''Signature'''|{{Code|CACHETIMEOUT [seconds]}}|- valign="top"| '''Default'''|{{Code|3600}}|- valign="top"| '''Summary'''|Specifies how many seconds the results of queries, which have been queued by the [[Job Module|asynchronously executed]], will be restarted cached in order to activate this optionmain memory.
|}
===HOST===
 {|width='100%'|-valign="top"| width='90120' | '''Signature'''
|{{Code|HOST [host]}}
|-valign="top"
| '''Default'''
|{{Code|localhost}}
|-valign="top"
| '''Summary'''
|This host name is used by the client when connecting to a server. This option can also be changed when running the client on [[Command-Line Options#BaseX Client|command line]] via <code>-n</code>.
|}
===PORT===
 {|width='100%'|-valign="top"| width='90120' | '''Signature'''
|{{Code|PORT [port]}}
|-valign="top"
| '''Default'''
|{{Code|1984}}
|-valign="top"
| '''Summary'''
|This port is used by the client when connecting to a server. This option can also be changed when running the client on [[Command-Line Options#BaseX Client|command line]] via <code>-p</code>.
|}
===SERVERPORT===
 {|width='100%'|-valign="top"| width='90120' | '''Signature'''
|{{Code|SERVERPORT [port]}}
|-valign="top"
| '''Default'''
|{{Code|1984}}
|-valign="top"
| '''Summary'''
|This is the port the database server will be listening to. This option can also be changed when running the server on [[Command-Line Options#BaseX Server|command line]] via <code>-p</code>.
|}
===SERVERHOSTUSER=== {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|SERVERHOST USER [host&#x7c;ipname]}}|-valign="top"
| '''Default'''
|''empty'' (''wildcard'')|-valign="top"
| '''Summary'''
|This Represents a username, which is used for accessing the host name server or ip address an HTTP service:* The default value will be overwritten if a client specifies its own credentials.* If the server default value is bound to. The server empty, login will only be open to all clients possible if the client specifies credentials.* The option is set to an empty stringcan also be changed on [[Command-Line Options#BaseX Client|command line]] via <code>-U</code>.
|}
===EVENTPORTPASSWORD=== {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|EVENTPORT PASSWORD [portpassword]}}|-valign="top"
| '''Default'''
|{{Code|1985}}''empty''|-valign="top"
| '''Summary'''
|This port Represents a password, which is used by for accessing the server:* The default value will be overwritten if a client specifies its own credentials.* If the default value is empty, authentication will only be possible if the client to listen for supplies credentials.* The option can also be changed on [[EventsCommand-Line Options#BaseX Client|server eventscommand line]]via <code>-P</code>. This port will only be bound if * Please note that it is a client attaches itself security risk to a database eventspecify your password in plain text.
|}
===HTTPPORTAUTHMETHOD=== {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|HTTPPORT AUTHMETHOD [portmethod]}}|-valign="top"
| '''Default'''
|{{Code|8984}}''Basic''|-valign="top"
| '''Summary'''
|This is Specifies the port default authentication method, which will be used by the [[Startup#BaseX HTTP ServerWeb Application|HTTP Serverserver]] for negotiating credentials. Allowed values are {{Code|Basic}}, {{Code|Digest}}, and {{Code|Custom}}:<br/>* If basic access is chosen, the client can still request digest authentication.* This is different for digest access, which cannot be overwritten.* With custom authentication, the server will be listening tonot do any authentication.
|}
===STOPPORTSERVERHOST==={||-| width='90' | '''Signature'''|{{Code|STOPPORT [port]}}|-| '''Default'''|{{Code|8985}}|-| '''Summary'''|This is the port on which the [[Startup#BaseX HTTP Server|HTTP Server]] can be locally closed.|}
===HTTPPATH==={|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|HTTPPATH SERVERHOST [pathhost&#x7c;ip]}}|-valign="top"
| '''Default'''
|<code>[[Configuration#Database Directory|{home}/BaseXHTTP]]</code>''empty''|-valign="top"
| '''Summary'''
|Points This is the host name or IP address the server is bound to . If the HTTP root directory, in option is set to an empty string (which HTML files may be storedis the default), and query files that the server will be evaluated by the [[REST]] serviceopen to all clients.
|}
===PROXYHOST===
 {|width='100%' width='100%'|-valign="top"| width='90120' | '''Signature'''
|{{Code|PROXYHOST [host]}}
|-valign="top"
| '''Default'''
|''empty'' |-valign="top"
| '''Summary'''
|This is the host name of a proxy server. If the value is an empty string, it will be ignored.
|}
===PROXYPORT===
 {|width='100%'|-valign="top"| width='90120' | '''Signature'''
|{{Code|PROXYPORT [port]}}
|-valign="top"
| '''Default'''
|{{Code|800}}|-valign="top"
| '''Summary'''
|This is the port number of a proxy server. If the value is set to {{Code|0}}, it will be ignored.
|}
===NONPROXYHOSTS===
 {|width='100%'|-valign="top"| width='90120' | '''Signature'''
|{{Code|NONPROXYHOSTS [hosts]}}
|-valign="top"
| '''Default'''
|''empty''|-valign="top"
| '''Summary'''
|This is a list of hosts that should be directly accessed. If the value is an empty string, it will be ignored.
|}
===PARALLELIGNORECERT=== {{Announce|Updated with Version 10}}: Additionally disable hostname verification. {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|PARALLEL IGNORECERT [numberboolean]}}|-valign="top"
| '''Default'''
|{{Code|8false}}|-valign="top"
| '''Summary'''
|Denotes the maximum allowed {{Code|number}} of parallel read [[Transaction Management|transactions]]Disable SSL hostname verification and ignore untrusted certificates when connecting to servers.
|}
===TIMEOUT===
{{Mark|Updated with Version 7.3:}} default value set from {{Code|0}} to {{Code|30}}. {|width='100%'|-valign="top"| width='90120' | '''Signature'''
|{{Code|TIMEOUT [seconds]}}
|-valign="top"
| '''Default'''
|{{Code|30}}
|-valign="top"
| '''Summary'''
|Specifies the maximum time a read-only transaction triggered by a client may take. If an operation takes longer than the specified timeoutnumber of seconds, it will be aborted.<br/>Write Active update operations will not be affected by this timeout, as this would corrupt the integrity of the database.<br/>The timeout is deactivated if the timeout is set to {{Code|0}}. It is ignored for {{Codeoperations with [[User Management|ADMIN}} operationsadmin permissions]].
|}
===KEEPALIVE===
{{Mark|Updated with Version 7.3:}} default value set from {{Code|0}} to {{Code|600}}. {|width='100%'|-valign="top"| width='90120' | '''Signature'''
|{{Code|KEEPALIVE [seconds]}}
|-valign="top"
| '''Default'''
|{{Code|600}}
|-valign="top"
| '''Summary'''
|Specifies the maximum time a client will be remembered by the server. If there has been no interaction with a client for a longer time than specified by this timeout, it will be disconnected. Running operations will not be affected by this option. The keepalive check is deactivated if the value is set to {{Code|0}}.
|}
 
===PARALLEL===
 
{| width='100%'
|- valign="top"
| width='120' | '''Signature'''
|{{Code|PARALLEL [number]}}
|- valign="top"
| '''Default'''
|{{Code|8}}
|- valign="top"
| '''Summary'''
|Denotes the maximum allowed number of parallel [[Transaction Management|transactions]]:
* If {{Option|FAIRLOCK}} is enabled, the number of parallel transactions will never exceed the specified value.
* If the option is disabled (which is the default), the limit only applies to transactions that access databases.
* The main reason for allowing parallel operations is to prevent slow transactions from blocking all other operations. A higher number of parallel operations may increase disk activity and thus slow down queries. In some cases, a single transaction may even give you better results than any parallel activity.
|}
===LOG===
{{Mark|Introduced with Version 7.4}} {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|LOG[boolean]}}|-valign="top"
| '''Default'''
|{{Code|true}}
|-valign="top"
| '''Summary'''
|Turns [[Logging]] of server operations and HTTP requests on/off. This option can also be changed when running the server on [[Command-Line Options#BaseX Server|command line]] via <code>-z</code>.
|}
===LOGMSGMAXLEN===
{{Mark|Introduced with Version 7.4}} {|width='100%'|-valign="top"| width='90120' | '''Signature'''
|{{Code|LOGMSGMAXLEN [length]}}
|-valign="top"
| '''Default'''
|{{Code|1000}}
|-valign="top"
| '''Summary'''
|Specifies the maximum length of a single [[Logging|log message]].
|}
=Create Options==LOGTRACE===
===CHOP==={|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|CHOPLOGTRACE [boolean]}}|-valign="top"
| '''Default'''
|{{Code|true}}
|-valign="top"
| '''Summary'''
|Chops all leading If BaseX is running as [[Web Application]], trace output (generated via {{Code|fn:trace}}, {{Function|Profiling|prof:dump}} and trailing whitespaces from text nodes while building a similar functions) is written to the [[Logging|database, and discards empty text nodeslogs]]. This If this option often reduces is disabled, trace output will be redirected to standard error, as it is known from the database size by up to 50%standalone version of BaseX.
|}
==HTTP Services=INTPARSE= Most HTTP options are defined in the {{Code|jetty.xml}} and {{Code|web.xml}} configuration files in the <code>[https://github.com/BaseXdb/basex/tree/master/basex-api/src/main/webapp/WEB-INF webapp/WEB-INF]</code> directory. Some additional BaseX-specific options exist that will be set before the web server is started: ===WEBPATH=== {| width='100%'|- valign="top"| width='120' | '''Signature'''|{{Code|WEBPATH [path]}}|- valign="top"| '''Default'''|<code>[[Configuration#Database Directory|{home}/webapp]]</code>|- valign="top"| '''Summary'''|Points to the directory in which all the [[Web Application]] contents are stored, including XQuery, Script, [[RESTXQ]] and configuration files:* The option is ignored if BaseX is deployed as [[Web Application#Servlet_Container|web servlet]].* It cannot be assigned via the {{Code|web.xml}} file, as it will be evaluated before the configuration files are parsed.|} ===GZIP=== {| width='100%'|- valign="top"| width='120' | '''Signature'''|{{Code|GZIP [boolean]}}|- valign="top"| '''Default'''|<code>false</code>|- valign="top"| '''Summary'''|Jetty provides a [https://www.eclipse.org/jetty/documentation/current/gzip-filter.html Gzip handler] for dynamically uncompressing requests and compressing responses. This feature can be enabled if Jetty is started via the [[Web Application|BaseX HTTP Server]]:* The option can also be enabled on [[Command-Line Options#HTTP Server|command line]] via <code>-g</code>.* It cannot be assigned via the {{Code|web.xml}} file, as it will be evaluated before the configuration files are parsed.* In addition to the [https://github.com/eclipse/jetty.project/blob/7cc552013eb4d05cb603ba0bc85d176c97957cd4/jetty-server/src/main/java/org/eclipse/jetty/server/handler/gzip/GzipHandler.java#L187-L211 Jetty defaults] (GET requests, exclusion of binaries, MSIE 6.0, etc.), POST and PUT requests are supported.|} ===RESTXQPATH=== {| width='100%'|- valign="top"| width='120' | '''Signature'''|{{Code|RESTXQPATH [path]}}|- valign="top"| '''Default'''|''empty''|- valign="top"| '''Summary'''|Points to the directory which contains the [[RESTXQ]] modules of a web application. Relative paths will be resolved against the {{Option|WEBPATH}} directory.|} ===PARSERESTXQ=== {| width='100%'|- valign="top"| width='120' | '''Signature'''|{{Code|PARSERESTXQ}}|- valign="top"| '''Default'''|{{Code|3}}|- valign="top"| '''Summary'''|Timeout after which the RESTXQ directory will be parsed for changes:* If {{Code|0}} is specified, the directory will be parsed every time a RESTXQ function is called.* A positive value defines the idle time in seconds after which parsing will be enforced. The default value is {{Code|3}}: Changes in the RESTXQ directory will be detected after 3 seconds without RESTXQ function calls.* Monitoring is completely disabled if a negative value is specified. See [[RESTXQ#Preliminaries|RESTXQ Preliminaries]] for more details.|} ===RESTXQERRORS=== {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|INTPARSERESTXQERRORS}}|-valign="top"
| '''Default'''
|{{Code|true}}
|-valign="top"| '''Summary'''|Reports parsing errors in XQuery modules in the RESTXQ directory and returns the full error message and stack trace to the client. By default, this option is enabled. In a production environment, it can be disabled to suppress errors that should not be seen by the user of an API (the full error information can still be looked up in the database logs). See [[RESTXQ#Error Handling|RESTXQ Error Handling]] for more details.|} ===RESTPATH=== {| width='100%'|- valign="top"| width='120' | '''Signature'''|{{Code|RESTPATH [path]}}|- valign="top"| '''Default'''|''empty''|- valign="top"
| '''Summary'''
|Uses Points to the internal XML parser instead of directory which contains XQuery files and command scripts, which can be evaluated via the standard Java XML parser[[REST#GET Requests|REST run operation]]. The internal parser is faster, more fault tolerant and supports common HTML entities out-of-Relative paths will be resolved against the-box, but it does not support all features needed for parsing DTDs{{Option|WEBPATH}} directory.
|}
===STRIPNSHTTPLOCAL==={{Mark|Introduced with Version 7.4:}}{|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|STRIPNSHTTPLOCAL [boolean]}}|-valign="top"
| '''Default'''
|{{Code|false}}
|-valign="top"
| '''Summary'''
|Strips all namespaces from an XML document before adding it By default, if BaseX is run as [[Web Application]], the database server instance will be started in addition, which can then be addressed by [[Clients]] via the database port (see {{Option|PORT}}).<br/>If the option is set to a {{Code|true}}, no databaseserver will be launched.
|}
===DTDSTOPPORT=== {| width='100%'|- valign="top"| width='120' | '''Signature'''|{{Code|STOPPORT [port]}}|- valign="top"| '''Default'''|{{Code|8081}}|- valign="top"| '''Summary'''|This is the port on which the [[Startup#BaseX HTTP Server|HTTP Server]] can be locally closed:* The listener for stopping the web server will only be started if the specified value is greater than {{Code|0}}.* The option is ignored if BaseX is used as a [[Web Application]] or started via [[Web Application#Maven|Maven]].* This option can also be changed when running the HTTP server on [[Command-Line Options#BaseX Server|command line]] via <code>-s</code>.|} =Create Options= ==General== ===MAINMEM=== {| width='90100%'|- valign="top"| width='120' | '''Signature'''|{{Code|DTDMAINMEM [boolean]}}|-valign="top"
| '''Default'''
|{{Code|false}}
|-valign="top"
| '''Summary'''
|Parses referenced DTDs and resolves XML entitiesIf this option is turned on, new databases will be created in main memory:* Most queries will be evaluated faster in main-memory mode, but all data is lost if the BaseX instance in which the database was created is shut down.* It is not possible to store binary resources in a main-memory database.* A main-memory database will have no disk representation. By defaultHowever, this option it is switched possible to export the database via the {{CodeCommand|falseEXPORT}}command, as many DTDs are located externally, which may completely block and create a new database from the process of creating new databasesexported file in a second step. The [[#CATFILE* This option will not be available for {{Function|Database|CATFILE]] option can db:create}}, because the database would not be changed to locally resolve DTDsaccessible anymore after database creation, i. e., outside the query scope.
|}
===CATFILEADDCACHE=== {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|CATFILE ADDCACHE [pathboolean]}}|-valign="top"
| '''Default'''
|''empty''{{Code|false}}|-valign="top"
| '''Summary'''
|Specifies a catalog file If this option is activated, data structures of documents will first be cached to locally resolve DTDs; see disk before being added to the final database. This option is helpful when larger documents need to be added, and if the existing heuristics cannot estimate the entry on [[Catalog Resolver]]s for more detailsinput size (e.g. when adding directories or sending input streams).
|}
 
==Parsing==
===CREATEFILTER===
 {|width='100%'|-valign="top"| width='90120' | '''Signature'''
|{{Code|CREATEFILTER [filter]}}
|-valign="top"
| '''Default'''
|{{Code|*.xml}}
|-valign="top"
| '''Summary'''
|File filter in the [[Commands#Glob Syntax|Glob Syntax]], which is applied whenever new databases are created, or resources are added to a database.
|}
===CREATEONLYADDARCHIVES=== {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|CREATEONLYADDARCHIVES [boolean]}}|-valign="top"
| '''Default'''
|{{Code|falsetrue}}|-valign="top"
| '''Summary'''
|By default, newly created databases will automatically be opened in order to be available for further processing steps. By setting the flag If this option is set to {{Code|true}}, this will be preventedfiles within archives (ZIP, GZIP, TAR, TGZ, DOCX, etc.) are parsed whenever new databases are created or resources are added to a database.
|}
===ADDARCHIVESARCHIVENAME=== {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|ADDARCHIVESARCHIVENAME [boolean]}}|-valign="top"
| '''Default'''
|{{Code|truefalse}}|-valign="top"
| '''Summary'''
|If this option is set to {{Code|true}}, files within the file name of parsed archives (ZIP, GZIP, DOCX, etc.) are parsed whenever new database are created or resources are added to a databasewill be included in the document paths.
|}
===SKIPCORRUPT===
 {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|SKIPCORRUPT[boolean]}}|-valign="top"
| '''Default'''
|{{Code|false}}
|-valign="top"
| '''Summary'''
|Skips corrupt (i.e., not well-formed) files while creating a database or adding new documents. If this option is activated, document updates are slowed down, as all files will be parsed twice. Next, main memory consumption will be higher as parsed files will be cached in main memory.
===ADDRAW===
 {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|ADDRAW[boolean]}}|-valign="top"
| '''Default'''
|{{Code|false}}
|-valign="top"
| '''Summary'''
|If this option is activatedenabled, and if new all resources are added to a database, all files that are not filtered out by the [[#CREATEFILTER{{Option|CREATEFILTER]] }} option while being added to a database will be added stored as ''[[Binary Data|raw'' files ]] instead (i.e., in their binary representation).
|}
===PARSER===
 {|width='100%'|-valign="top"| width='90120' | '''Signature'''
|{{Code|PARSER [type]}}
|-valign="top"
| '''Default'''
|{{Code|XML}}
|-valign="top"
| '''Summary'''
|Defines a [[Parsers|parser]] for importing new files to the database. Currently, 'Available parsers are {{Code|XML'}}, '{{Code|JSON'}}, '{{Code|CSV'}}, '{{Code|TEXT'}}, '{{Code|HTML' are available as parsers}}, and {{Code|RAW}}. HTML input will be parsed as normal XML files documents if [http://home.ccil.org/~cowan/XML/tagsoup/ [Parsers#HTML_Parser|Tagsoup]] is not found in the classpath.
|}
===PARSEROPTCSVPARSER=== {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|PARSEROPT CSVPARSER [options]}}|-valign="top"
| '''Default'''
|''empty''
|-valign="top"
| '''Summary'''
|Defines parser-specific Specifies the way how CSV data will be parsed. Keys and values are delimited with <code>=</code>, and multiple options are delimited with <code>,</code>. The available options; see (except for the additional <code>encoding</code> option) are described in the [[ParsersCSV Module#Options|CSV Module]] for more information.|- valign="top"| '''Examples'''|<code>encoding=CP1252,header=true</code> parses the input as CP1252 and the first line as header.
|}
===HTMLOPTJSONPARSER==={{Mark|Introduced with Version 7.2:}}{|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|HTMLOPT JSONPARSER [options]}}|-valign="top"
| '''Default'''
|''empty''
|-valign="top"| '''Summary'''|Specifies the way how JSON data will be parsed. Keys and values are delimited with <code>=</code>, and multiple options are delimited with <code>,</code>. The available options (except for the additional <code>encoding</code> option) are described in the [[JSON Module#Options|JSON Module]].|- valign="top"| '''Examples'''|<code>format=jsonml,lax=yes</code> interprets the input as JSONML and uses lax parsing.|} ===HTMLPARSER=== {| width='100%'|- valign="top"| width='120' | '''Signature'''|{{Code|HTMLPARSER [options]}}|- valign="top"| '''Default'''|''empty''|- valign="top"| '''Summary'''|Specifies the way how HTML data will be parsed. Keys and values are delimited with <code>=</code>, and multiple options are delimited with <code>,</code>. The available options are described in the [[Parsers#Options|Parsers]] article.|- valign="top"| '''Examples'''|* <code>encoding=Shift-JIS,nons=true</code> parses the input as Sihft-JIS and suppresses namespaces.* <code>lexical=true</code> preserves comments.|} ===TEXTPARSER=== {| width='100%'|- valign="top"| width='120' | '''Signature'''|{{Code|TEXTPARSER [options]}}|- valign="top"| '''Default'''|''empty''|- valign="top"| '''Summary'''|Specifies the way how TEXT data will be parsed. Keys and values are delimited with <code>=</code>, and multiple options are delimited with <code>,</code>. The available options are listed in the [[Parsers]] article.|- valign="top"| '''Examples'''|<code>lines=true</code> creates a single element for each line of text.|} ==XML Parsing== ===STRIPWS=== {{Announce|Updated with Version 10:}} Renamed (before: {{Code|CHOP}}), new default: {{Code|false}}. {| width='100%'|- valign="top"| width='120' | '''Signature'''|{{Code|STRIPWS [boolean]}}|- valign="top"| '''Default'''|{{Code|false}}|- valign="top"
| '''Summary'''
|Allows Many XML documents include whitespaces that have been added to specify TagSoup options for HTML parsing; see improve readability. This option controls the [https://www.w3.org/TR/REC-xml/#sec-white-space white-space processing mode] of the XML parser:* If the option is set to {{Code|true}}, leading and trailing whitespaces from text nodes will be stripped, and empty text nodes will be discarded.* The flag should be disabled if a document contains [[ParsersFull-Text#HTML ParserMixed Content|HTML Parsermixed content]] for more information.* The flag can also be turned on via the [[Command-Line Options#BaseX Standalone|command line]] and <code>-w</code>.* If the option is enabled, whitespaces of an element and its descendants can locally be preserved with the <code>xml:space="preserve"</code> attribute: <syntaxhighlight lang="xml"><xml> <title> Demonstrating the STRIPWS flag </title> <text xml:space="preserve">To <b>be</b>, or not to <b>be</b>, that is the question.</text></xml></syntaxhighlight>If whitespaces are stripped, <code>indent=yes</code> can be assigned to the {{Option|SERIALIZER}} option to get properly indented XML output.
|}
===GCSTRIPNS==={{Mark|Introduced with Version 7.4:}}{|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|GC STRIPNS [numberboolean]}}|-valign="top"
| '''Default'''
|''2''{{Code|false}}|-valign="top"
| '''Summary'''
|Number of explicit consecutive garbage collections runs to be executed when memory gets low during the construction of index structuresStrips all namespaces from an XML document while parsing.
|}
=Database Options==INTPARSE=== {| width='100%'|- valign="top"| width='120' | '''Signature'''|{{Code|INTPARSE [boolean]}}|- valign="top"| '''Default'''|{{Code|false}}|- valign="top"| '''Summary'''|Uses the internal XML parser instead of the standard Java XML parser. Here are some reasons for using the internal parser:* Performance: Documents (in particular small ones) will be parsed faster* Fault tolerance: invalid characters will automatically be replaced with the Unicode replacement character <code>FFFD</code> (&#xFFFD;)* Entities: around 250 HTML entities will be detected and decodedYou will be able to correctly parse most XML documents with the internal parser. Java’s Xerces parser is still used as default, however, because it supports all features of the XML standard and advanced DTD features, such as recursive entity expansion.|}
===MAINMEMDTD=== {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|MAINMEMDTD [boolean]}}|-valign="top"
| '''Default'''
|{{Code|false}}
|-valign="top"
| '''Summary'''
|If Parses referenced DTDs and resolves XML entities. By default, this option is turned onswitched to {{Code|false}}, as many DTDs are located externally, which may completely block the process of creating new databases will be exclusively created in main memory. Most queries will be evaluated faster in main memory mode, but all data is lost if BaseX is shut down. The value of this {{Option|CATALOG}} option will can be assigned once changed to a new database, and cannot be changed after thatlocally resolve DTDs.
|}
===PATHINDEXXINCLUDE=== {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|PATHINDEXXINCLUDE [boolean]}}|-valign="top"
| '''Default'''
|{{Code|true}}
|-valign="top"
| '''Summary'''
|Creates a path index whenever a new database Resolves XInclude inclusion tags and merges referenced XML documents. By default, this option is createdswitched to {{Code|true}}. A path index helps to optimize location paths; This option is only available if the standard Java XML Parser is used (see [[Indexes]] for more details{{Option|INTPARSE}}).
|}
 
===CATALOG===
 
{{Announce|Updated with Version 10:}} Renamed from <code>CATFILE</code>.
 
{| width='100%'
|- valign="top"
| width='120' | '''Signature'''
|{{Code|CATALOG [path]}}
|- valign="top"
| '''Default'''
|''empty''
|- valign="top"
| '''Summary'''
|Semicolon-separated list of XML catalog files to resolve URIs. See [[Catalog Resolver]]s for more details.
|}
 
==Indexing==
 
The following options control the creation of index structures. The current values will be considered if a new database is created. See [[Indexes]] for more details.
===TEXTINDEX===
 {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|TEXTINDEX[boolean]}}|-valign="top"
| '''Default'''
|{{Code|true}}
|-valign="top"
| '''Summary'''
|Creates a text index whenever a new database is created. A text index speeds up queries with equality comparisons on text nodes; see . See [[IndexesIndex#Text Index|Text Index]] for more details.
|}
===ATTRINDEX===
 {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|ATTRINDEX[boolean]}}|- valign="top"| '''Default'''|{{Code|true}}|-valign="top"| '''Summary'''|Creates an attribute index whenever a new database is created. An attribute index speeds up queries with equality comparisons on attribute values. See [[Index#Attribute Index|Attribute Index]] for more details.|} ===TOKENINDEX=== {| width='100%'|- valign="top"| width='120' | '''Signature'''|{{Code|TOKENINDEX [boolean]}}|- valign="top"
| '''Default'''
|{{Code|true}}
|-valign="top"
| '''Summary'''
|Creates an attribute a token index whenever a new database is created. An attribute A token index speeds up queries with equality comparisons on searches for single tokens in attribute values; see . See [[IndexesIndex#Token Index|Token Index]] for more details.
|}
===FTINDEX===
 {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|FTINDEX[boolean]}}|-valign="top"
| '''Default'''
|{{Code|false}}
|-valign="top"| '''Summary'''|Creates a full-text index whenever a new database is created. A full-text index speeds up queries with full-text expressions. See [[Index#Full-Text Index|Full-Text Index]] for more details.|} ===TEXTINCLUDE=== {| width='100%'|- valign="top"| width='120' | '''Signature'''|{{Code|TEXTINCLUDE [names]}}|- valign="top"| '''Default'''|''empty''|- valign="top"
| '''Summary'''
|Creates a fullDefines name patterns for the parent elements of texts that are indexed. By default, all text nodes will be indexed.<br/>Name patterns are separated by commas. See [[Indexes#Selective Indexing|Selective Indexing]] for more details.|} ===ATTRINCLUDE=== {| width='100%'|- valign="top"| width='120' | '''Signature'''|{{Code|ATTRINCLUDE [names]}}|-text index whenever a new database is createdvalign="top"| '''Default'''|''empty''|- valign="top"| '''Summary'''|Defines name patterns for the attributes to be indexed. By default, all attribute nodes will be indexed.<br/>Name patterns are separated by commas. See [[Indexes#Selective Indexing|Selective Indexing]] for more details.|} ===TOKENINCLUDE=== {| width='100%'|- valign="top"| width='120' | '''Signature'''|{{Code|TOKENINCLUDE [names]}}|- valign="top"| '''Default'''|''empty''|- valign="top"| '''Summary'''|Defines name patterns for the attributes to be indexed. By default, tokens in all attribute nodes will be indexed.<br/>Name patterns are separated by commas. See [[Indexes#Selective Indexing|Selective Indexing]] for more details. A full|} ===FTINCLUDE=== {| width='100%'|- valign="top"| width='120' | '''Signature'''|{{Code|FTINCLUDE [names]}}|-text index speeds up queries with fullvalign="top"| '''Default'''|''empty''|-valign="top"| '''Summary'''|Defines name patterns for the parent elements of texts that are indexed. By default, all text expressions; see nodes will be indexed.<br/>Name patterns are separated by commas. See [[Indexes#Selective Indexing|Selective Indexing]] for more details.
|}
===MAXLEN===
 {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|MAXLEN[int]}}|-valign="top"
| '''Default'''
|{{Code|96}}
|-valign="top"
| '''Summary'''
|Specifies the maximum length of for strings that are to be indexed by the name, path, value, and full-text stored in [[Indexes|index structures]]. The value of this option will be assigned once to a new database, and cannot can only be changed after thatby creating a new database or doing a [[Commands#OPTIMIZE|full optimization]].
|}
===MAXCATS===
 {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|MAXCATS[int]}}|-valign="top"
| '''Default'''
|{{Code|100}}
|-valign="top"
| '''Summary'''
|Specifies the maximum number of distinct values (categories) that will be stored together with the element/attribute names or unique paths in the [[Index#Name Index|Name Index]] or [[Index#Path Index|Path Index]]. The value of this option will be assigned once to a new database, and cannot be changed after that.
===UPDINDEX===
 {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|UPDINDEX[boolean]}}|-valign="top"
| '''Default'''
|{{Code|false}}
|-valign="top"
| '''Summary'''
|If turned on, incremental indexing will be activatedenabled: all update operations will also update the value index structures (texts and attribute values). * The current value of this option will be assigned once to a new database, and cannot databases. It can be changed after thatfor existing databases by running {{Command|OPTIMIZE}} with the {{Code|ALL}} keyword or {{Function|Database|db:optimize}} and {{Code|true()}} as second argument. The advantage of incremental indexes is that * After each update, the value index structures indexes will always be uprefreshed as well. Incremental updates are currently not available for the full-to-datetext index and database statistics. The downside is that updates will take a little bit longer* Find more details in the article on [[Index#Updates|Index Structures]].
|}
===WRITEBACKAUTOOPTIMIZE=== {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|WRITEBACKAUTOOPTIMIZE [boolean]}}|-valign="top"
| '''Default'''
|{{Code|false}}
|-valign="top"
| '''Summary'''
|Updates If turned on XML nodes are written back , auto optimization will be applied to new databases:* With each update, outdated indexes and database statistics will be recreated.* As a result, the input filesindex structures will always be up-to-date.* However, updates can take much longer, so this option should only be activated for medium-sized databases. Note that no backups * The value of your original files this option will be created if this option is turned onassigned once to a new database. It can be reassigned by running {{Command|OPTIMIZE}} or {{Function|Database|db:optimize}}.
|}
===AUTOFLUSHSPLITSIZE==={||-| width='90' | '''Signature'''|{{Code|AUTOFLUSH}}|-| '''Default'''|{{Code|true}}|-| '''Summary'''|Flushes database buffers to disk after each update. If this option is set to {{Code|false}}, bulk operations (multiple single updates) will be evaluated faster. As a drawback, the chance of data loss increases if the database is not explicitly flushed via the [[Commands#FLUSH|FLUSH]] command.|}
===MAXSTAT==={|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|MAXSTAT SPLITSIZE [num]}}|-valign="top"
| '''Default'''
|{{Code|300}}|-valign="top"
| '''Summary'''
|Specifies This option affects the maximum number of index occurrences printed by the <code>[[CommandsIndexes#INFOPerformance|INFO INDEXconstruction]]</code> commandof new value indexes. It controls the number of index build operations that are performed before writing partial index data to disk:* By default, if the value is set to {{Code|0}}, some heuristics are applied, based on the current memory consumption. Usually, this works fine.* If explicit garbage collection is disabled when running Java (e.g. via the JVM option {{Code|-XX:+DisableExplicitGC}}), you may need to choose a custom split size.* You can e. g. start with {{Code|1000000}} (one million) index operations and adjust this value in the next steps.* The larger the assigned value is, the less splits will take place, and the more main memory will be required.
|}
==Full-Text OptionsIndexing==
===STEMMING===
 {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|STEMMING[boolean]}}|-valign="top"
| '''Default'''
|{{Code|false}}
|-valign="top"
| '''Summary'''
|A new If {{Code|true}}, all tokens will be stemmed during full-text index indexing, using a language-specific stemmer implementation. By default, tokens will stem all tokens and speed up queries on not be stemmed tokens. The same stemming normalization will be applied to all query tokens that are checked against tokens in this indexSee [[Indexes#Full-Text Index|Full-Text Index]] for more details.
|}
===CASESENS===
 {|width='100%'|-| width='90120' | '''Signature'''|{{Code|CASESENS[boolean]}}|-valign="top"
| '''Default'''
|{{Code|false}}
|-valign="top"
| '''Summary'''
|A new full-text index will preserve If {{Code|true}}, the case of all tokenswill be preserved during full-text indexing. The same By default, case normalization will be applied to ignored (all query tokens that are checked against tokens will be indexed in this indexlower case). See [[Indexes#Full-Text Index|Full-Text Index]] for more details.
|}
===DIACRITICS===
 {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|DIACRITICS[boolean]}}|-valign="top"
| '''Default'''
|{{Code|false}}
|-valign="top"
| '''Summary'''
|A new If set to {{Code|true}}, diacritics will be preserved during full-text index will preserve the diacritics of all tokensindexing. The same By default, diacritics normalization will be applied to all query tokens that are checked against tokens in this indexremoved. See [[Indexes#Full-Text Index|Full-Text Index]] for more details.
|}
===LANGUAGE===
 {|width='100%'|-valign="top"| width='90120' | '''Signature'''
|{{Code|LANGUAGE [lang]}}
|-valign="top"
| '''Default'''
|{{Code|en}}
|-valign="top"
| '''Summary'''
|A new full-text index The specified language will use influence the given language to normalize all tokensway how texts will be tokenized and stemmed. This option is mainly important if tokens are to It can be stemmed, or if the tokenization name of a language differs from Western languagesor a language code. See [[Indexes#Full-Text Index|Full-Text Index]] for more details.
|}
===STOPWORDS===
 {|width='100%'|-valign="top"| width='90120' | '''Signature'''
|{{Code|STOPWORDS [path]}}
|-valign="top"
| '''Default'''
|''empty''
|-valign="top"
| '''Summary'''
|A new If a text file with stop words is specified, frequently used terms contained in that file will be ignored when a full-text index will drop tokens that are listed in the specified stopword listis created. A stopword list may decrease the size of the full text indexand speed up your queries. A standard stopword list See [[Indexes#Full-Text Index|Full-Text Index]] for English texts is provided in the directory {{Code|etc/stopwords.txt}} in the official releasesmore details.
|}
=Query Options= ===LSERRORQUERYINFO=== {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|LSERROR QUERYINFO [errorboolean]}}|-valign="top"
| '''Default'''
|{{Code|0false}}|-valign="top"
| '''Summary'''
|This option specifies Prints more information on internal query rewritings, optimizations, and performance. By default, this info is shown in the maximum Levenshtein error for [[GUI#Visualizations|Info View]] in the BaseX-specific fuzzy match optionGUI. See the page It can also be activated on [[FullCommand-TextLine Options#Fuzzy_QueryingBaseX Standalone|Full-Textscommand line]] for more information on fuzzy queryingvia <code>-V</code>.
|}
===WILDCARDSMIXUPDATES=== {| width='100%'|- valign="top"| width='120' | '''Signature'''|{{Code|MIXUPDATES}}|- valign="top"| '''Default'''|{{Code|false}}|- valign="top"| '''Summary'''|Allows queries to both contain updating and non-updating expressions. All updating constraints will be turned off, and nodes to be returned will be copied before they are modified by an updating expression. By default, in compliance with the XQuery Update Facility, this option is set to {{Code|false}}. See [[XQuery Update#Returning Results|Returning Results]] for more details.|}
{{Mark|Removed in Version 7.3:}} new index supports both fuzzy and wildcard queries.===BINDINGS===
{|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|WILDCARDSBINDINGS [vars]}}|-valign="top"
| '''Default'''
|{{Code|false}}''empty''|-valign="top"
| '''Summary'''
|Contains external variables to be bound to a query. The string must comply with the following rules:* Variable names and values must be separated by equality signs.* Multiple variables must be delimited by commas.* Commas in values must be duplicated.* Variables may optionally be introduced with a leading dollar sign.* If a new full-text index is createdvariable uses a namespace different to the default namespace, it will can be particularly optimized for wildcards expressionsspecified with the [http://www.jclark.com/xml/xmlns.htm Clark Notation] or [https://www. See the page w3.org/TR/xquery-30/#id-basics Expanded QName Notation].This option can also be used on [[FullCommand-TextLine Options#BaseX Standalone|command line]]s for more information on XQuery Full Textwith the flag <code>-b</code>.|- valign="top"| '''Examples'''|* <code>$a=1,$b=2</code> &nbsp; binds the values {{Code|1}} and {{Code|2}} to the variables $a and $b* <code>a=1,,2</code> &nbsp; binds the value {{Code|1,2}} to the variable $a* <code>{URI}a=x</code> &nbsp; binds the value {{Code|x}} to the variable $a with the namespace {{Code|URI}}. * In the following [[Commands#Command_Scripts| Command Script]], the value {{Code|hello world!}} is bound to the variable {{Code|$GREETING}}:<syntaxhighlight lang="xquery">SET BINDINGS GREETING="hello world!"XQUERY declare variable $GREETING external; $GREETING</syntaxhighlight>
|}
===SCORINGINLINELIMIT===
{| width='100%'|- valign="top"| width='120' | '''Signature'''|{{MarkCode|INLINELIMIT}}|- valign="top"| '''Default'''|{{Code|50}}|- valign="top"| '''Summary'''|Removed in Version 7This option controls inlining of XQuery functions:* The XQuery compiler inlines functions to speed up query evaluation.* Inlining will only take place if a function body is not too large (i.e., if it does not contain too many expressions).3:* With this option, this maximum number of expressions can be specified.* Function inlining can be turned off by setting the value to {{Code|0}} new scoring model will focus .* The limit can be locally overwritten via the [[XQuery Extensions#Function Inlining|%basex:inline]] annotation (follow the link to get more information on lengths of text nodes and match optionsfunction inlining).|}
===UNROLLLIMIT=== {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|SCORING [mode]UNROLLLIMIT}}|-valign="top"
| '''Default'''
|{{Code|05}}|-valign="top"
| '''Summary'''
|A new full-text index will pre-calculate full-text scores. This option enables TF/IDF/based scores in full-text queries and increases main controls the unroll limit:* Loops with few iterations are ''unrolled'' by the XQuery compiler to enable further optimizations.* If the limit is increased, more optimizations will take place, but the memory consumption while indexingand compile time will increase. * See the [[Full-TextXQuery Optimizations#ScoringLoop Unrolling|ScoringLoop Unrolling]] for more information on different scoring typesdetails.
|}
=Query Options==ENFORCEINDEX===
===QUERYINFO==={|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|QUERYINFOENFORCEINDEX [boolean]}}|-valign="top"
| '''Default'''
|{{Code|false}}
|-valign="top"
| '''Summary'''
|Prints more information on internal query Enforces index rewritings, optimizations, and performancein path expressions. The query info will always be printed in the [[GUI#Visualizations|Info View]] in the GUI, or it can be activated with the See [[Startup_OptionsIndexes#BaseX_StandaloneEnforce Rewritings|-V flagEnforce Rewritings]] on command linefor details.
|}
===XQUERY3COPYNODE=== {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|XQUERY3COPYNODE [boolean]}}|-valign="top"
| '''Default'''
|{{Code|true}}
|-valign="top"| '''Summary'''|When creating new nodes in XQuery via [https://www.w3.org/TR/xquery-31/#id-constructors Node Constructors], copies of all enclosed nodes will be created, and the copied nodes get new node identities. As a result, the following query yields <code>false</code>:<syntaxhighlight lang="xquery">let $a := <a/>let $b := <b>{ $a }</b>return $b/a is $a</syntaxhighlight>This step can be very expensive and memory consuming. If the option is disabled, child nodes will only be linked to the new parent nodes, and the upper query returns <code>true</code>.<br>The option should be used carefully as it changes the semantics of XQuery. It should preferably be used in [[XQuery Extensions#Database Pragmas|Pragmas]].|} ===TAILCALLS=== {| width='100%'|- valign="top"| width='120' | '''Signature'''|{{Code|TAILCALLS}}|- valign="top"| '''Default'''|{{Code|256}}|- valign="top"
| '''Summary'''
|Enables all Specifies how many stack frames of [[XQuery 3https://en.wikipedia.0org/wiki/Tail_call tail-calls]] features supported by BaseXare allowed on the stack at any time. If When this option limit is set reached, tail-call optimization takes place and some call frames are eliminated. The feature can be turned off by setting the value to {{Code|false-1}}, the XQuery parser will only accept expressions of the XQuery 1.0 specification.
|}
===SERIALIZEWITHDB=== {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|SERIALIZEWITHDB}}|-valign="top"
| '''Default'''
|{{Code|true}}
|-valign="top"
| '''Summary'''
|Results of XQuery expressions will be serialized if this option is turned on. For debugging purposes By default, resources specified via {{Code|fn:doc}} and performance measurements, this option can be set to {{Code|falsefn:collection}}are looked up both in the database and in the file system. If you always use {{Function|Database|db:get}} to access databases, it is recommendable to disable this option:* No locks will be created for the two functions (see [[Transaction Management#Limitations|limitations of database locking]] for more details).* Access to local and external resources will be faster, as the database lookup will be skipped.
|}
===BINDINGSDEFAULTDB=== {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|BINDINGS [vars]DEFAULTDB}}|-valign="top"
| '''Default'''
|''empty''{{Code|false}}|-valign="top"
| '''Summary'''
|Contains external variables to be bound to a query. Variable names and values are separated by equality signs, and multiple variables are delimited by commas. Variables may optionally be introduced with a leading dollar sign. Commas that occur in the value itself are encoded by duplication. If a variable uses a namespace different to the default namespacethis option is turned on, it can be paths specified with the [http://www.jclark.com/xml/xmlns.htm Clark Notation] or [http://www.w3.org/TR/xquery-30/#id-basics Expanded QName Notation].|-| '''Examples'''|<code>$a=1,$b=2</code> &nbsp; binds in the values {{Code|1fn:doc}} and {{Code|2fn:collection}} to the variables $functions will first be resolved against a and $b<br/><code>a=1,,2</code> &nbsp; binds database that has been opened in the value {{Code|1,2}} to global context outside the variable $a<br/><code>{URI}a=x</code> or <code>'URI':a=x</code> &nbsp; binds query (e.g. by the value {{CodeCommand|xOPEN}} to command). If the variable $a with path does not match any existing resources, it will be resolved as described in the namespace {{Codearticle on [[Databases#Access Resources|URI}}accessing database resources]].
|}
===SERIALIZERFORCECREATE=== {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|SERIALIZER FORCECREATE [paramsboolean]}}|-valign="top"
| '''Default'''
|''empty''{{Code|false}}|-valign="top"
| '''Summary'''
|Contains parameters for serializing queries; see [[Serialization]] for more details. Keys and values are separated by equality signsBy activating this option, and multiple parameters are delimited by commas.|-| '''Example'''database instances will be created with the XQuery functions {{Code|<code>encoding=US-ASCII,omit-xml-declaration=no</code> fn: sets the encoding to doc}} and {{Code|US-ASCIIfn:collection}} and prints the XML declaration.
|}
===EXPORTERCHECKSTRINGS=== {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|EXPORTER CHECKSTRINGS [paramsboolean]}}|-valign="top"
| '''Default'''
|''empty''{{Code|true}}|-valign="top"
| '''Summary'''
|Contains parameters for exporting all resources of a databaseBy default, characters from external sources that are invalid in XML will trigger an error. If the option is set to <code>false</code>, these characters will be replaced with the Unicode replacement character <code>FFFD</code> (&#xFFFD; see ). The option affects [[SerializationJava Bindings]] for more details. Keys and values are separated by equality signsstring conversion and input functions such as {{Function|Archive|archive:create}}, {{Function|Archive|archive:extract-text}}, multiple parameters are delimited by commasand {{Function|Archive|archive:update}}.
|}
===QUERYPATHWRAPJAVA=== {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|QUERYPATH WRAPJAVA [pathmode]}}|-valign="top"
| '''Default'''
|''empty''{{Code|some}}|-valign="top"
| '''Summary'''
|Contains Defines the path (''base URI'') to the executed query (default: ''empty''). This directory way how values that result from Java code invocation will be used converted to resolve relative paths to documentsXQuery items. Allowed values: {{Code|none}}, {{Code|all}}, {{Code|some}}, query modules{{Code|instance}}, and other resources addressed in a query{{Code|void}}. See [[Java_Bindings#Conversion to XQuery|Java Bindings]] for further details.
|}
===CACHEQUERYLSERROR=== {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|CACHEQUERYLSERROR [error]}}|-valign="top"
| '''Default'''
|{{Code|false0}}|-valign="top"
| '''Summary'''
|Caches This option specifies the query results before returning them to the clientmaximum Levenshtein error for fuzzy full-text matching. This option may be set to By default, if {{Code|true0}} if is assigned, the whole result error value is needed calculated dynamically. See [[Full-Text#Fuzzy_Querying|Fuzzy Querying]] for further operations (such as is e.g. the case in the GUI of BaseX)more details.
|}
===FORCECREATERUNQUERY=== {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|FORCECREATERUNQUERY [boolean]}}|-valign="top"
| '''Default'''
|{{Code|falsetrue}}|-valign="top"
| '''Summary'''
|By activating this Specifies if a query will be executed or parsed only. This option, the XQuery {{Codecan also be changed on [[Command-Line Options#BaseX Standalone|doc()}} and {{Code|collection()}} functions will create database instances for the addressed input filescommand line]] via <code>-R</code>.
|}
===RUNS===
 {|width='100%'|-valign="top"| width='90120' | '''Signature'''
|{{Code|RUNS [num]}}
|-valign="top"
| '''Default'''
|{{Code|1}}
|-valign="top"
| '''Summary'''
|Specify number of runs Specifies how often a query will be evaluated. The result is executed. Results are printed a single time serialized only once, and evaluation the measured times are averages of all runs. This option can also be changed on [[Command-Line Options#BaseX Standalone|command line]] via <code>-r</code>.
|}
=Serialization Options=
===XMLPLANSERIALIZE=== {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|XMLPLANSERIALIZE [boolean]}}|-valign="top"
| '''Default'''
|{{Code|falsetrue}}|-valign="top"
| '''Summary'''
|Prints the execution plan Results of an XQuery expression in its XML representationexpressions will be serialized if this option is turned on. For debugging purposes and performance measurements, this option can be set to {{Code|false}}. It can also be turned off on [[Command-Line Options#BaseX Standalone|command line]] via <code>-z</code>.
|}
===COMPPLANSERIALIZER=== {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|COMPPLANSERIALIZER [params]}}|-valign="top"
| '''Default'''
|''empty''|- valign="top"| '''Summary'''|Parameters for [[Serialization|serializing]] query results:* Variable names and values are separated by equality signs.* Multiple variables are delimited by commas.* Commas must be duplicated if they appear as literals in values.The option can also be used on [[Command-Line Options#BaseX Standalone|command line]] with the flag <code>-s</code>.|- valign="top"| '''Examples'''|* <code>indent=yes</code> : enables automatic indentation of XML nodes. This is recommended if whitespaces have been stripped from a document (see {{Options|STRIPWS}}).* <code>encoding=US-ASCII,omit-xml-declaration=no</code> : sets the encoding to {{Code|trueUS-ASCII}}and prints the XML declaration.* <code>item-separator=,,</code> : separates serialized items by a single comma.|} ===EXPORTER=== {| width='100%'|- valign="top"| width='120' | '''Signature'''|{{Code|EXPORTER [params]}}|- valign="top"| '''Default'''|''empty''|-valign="top"
| '''Summary'''
|Creates the query plan before or Contains parameters for exporting resources of a database and writing files after updates via the compilation step{{Option|WRITEBACK}} option. Keys and values are separated by equality signs, multiple parameters are delimited by commas. See [[Serialization]] for more details. Query plans might change due to optimizations|- valign="top"| '''Examples'''|* <code>indent=no,omit-xml-declaration=no</code> : disables automatic indentation of XML nodes, outputs the XML declaration.
|}
===DOTPLANXMLPLAN=== {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|DOTPLANXMLPLAN [boolean]}}|-valign="top"
| '''Default'''
|{{Code|false}}
|-valign="top"
| '''Summary'''
|Visualizes Prints the execution plan of an XQuery expression with in its XML representation. This option can also be activated on [http:[Command-Line Options#BaseX Standalone|command line]] via <code>-x<//www.graphviz.org dotty] and saves its dot file in the query directorycode>.
|}
===DOTCOMPACTFULLPLAN=== {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|DOTCOMPACTFULLPLAN [boolean]}}|-valign="top"
| '''Default'''
|{{Code|false}}
|-valign="top"
| '''Summary'''
|Chooses a compact dot representationAttaches the file path, line and column of the expressions in the original query string to the query plan. Values (items and sequences) have no input information attached.
|}
=Other Options= ===DOTDISPLAYAUTOFLUSH=== {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|DOTDISPLAYAUTOFLUSH [boolean]}}|-valign="top"
| '''Default'''
|{{Code|true}}
|-valign="top"
| '''Summary'''
|Visualizes Flushes database buffers to disk after each update. If this option is set to {{Code|false}}, bulk operations (multiple single updates) will be evaluated faster. As a drawback, the dot representation after chance of data loss increases if the database is not explicitly flushed via the query execution{{Command|FLUSH}} command.
|}
===DOTTYWRITEBACK=== {|width='100%'|-valign="top"| width='90120' | '''Signature'''|{{Code|DOTTY WRITEBACK [pathboolean]}}|-valign="top"
| '''Default'''
|{{Code|dottyfalse}}|-valign="top"| '''Summary'''|Propagates updates on main-memory instances of files that have been retrieved via {{Code|fn:doc}} and {{Code|fn:collection}} back to disk:* This option can also be activated on [[Command-Line Options#BaseX Standalone|command line]] via <code>-u</code>.* Please take in mind that no backup will be created from your original files.* The serialization options can be controlled via the {{Option|EXPORTER}} option.|} ===MAXSTAT=== {| width='100%'|- valign="top"| width='120' | '''Signature'''|{{Code|MAXSTAT [num]}}|- valign="top"| '''Default'''|{{Code|30}}|- valign="top"
| '''Summary'''
|Location Specifies the maximum number of index occurrences printed by the {{CodeCommand|dottyINFO INDEX}} executablecommand.
|}
=Changelog=
;Version 10.0* Removed: <code>COMPPLAN</code>, <code>IGNOREHOSTNAME</code>* Updated: {{Option|IGNORECERT}}: Additionally disable hostname verification.* Updated: {{Option|CATALOG}}: Renamed (before: {{Code|CATFILE}}).* Updated: {{Option|STRIPWS}}: Renamed (before: {{Code|CHOP}}), new default: false. ;Version 9.7* Updated: {{Option|GZIP}}: Support for POST and PUT requests. ;Version 9.6* Added: {{Option|UNROLLLIMIT}}, {{Option|WRAPJAVA}} ;Version 9.5* Updated: {{Option|INLINELIMIT}}: default reduced to 50.* Updated: {{Option|RESTXQERRORS}}: additionally suppress stack trace in HTTP response ;Version 9.4* Added: {{Option|LOGTRACE}} ;Version 9.3* Added: {{Option|WITHDB}}, {{Option|GZIP}} ;Version 9.2* Added: {{Option|RESTXQERRORS}}, {{Option|FULLPLAN}}* Removed: <code>DOTPLAN</code>, <code>DOTCOMPACT</code> ;Version 9.0* Added: {{Option|ENFORCEINDEX}}, {{Option|COPYNODE}}, {{Option|IGNOREHOSTNAME}} ;Version 8.6* Added: {{Option|FAIRLOCK}}, {{Option|PARSERESTXQ}}* Removed: {{Code|GLOBALLOCK}} (exclusive use of database lock)* Removed: {{Code|QUERYPATH}} (will now be internally assigned)* Removed: {{Code|CACHERESTXQ}} (replaced with PARSERESTXQ) ;Version 8.5* Added: {{Option|CACHETIMEOUT}}, {{Option|LOGPATH}}* Updated: {{Option|AUTHMETHOD}}: {{Code|custom}} value added. ;Version 8.4* Added: {{Option|TOKENINDEX}}, {{Option|TOKENINCLUDE}}* Added: {{Option|SPLITSIZE}} (replacing <code>INDEXSPLITSIZE</code> and <code>FTINDEXSPLITSIZE</code>)* Removed: <code>INDEXSPLITSIZE</code>, <code>FTINDEXSPLITSIZE</code>
;Version 8.3* Added: {{Option|CACHERESTXQ}}, {{Option|TEXTINCLUDE}}, {{Option|ATTRINCLUDE}}, {{Option|FTINCLUDE}}, {{Option|ARCHIVENAME}} ;Version 8.2* Removed: <code>EVENTPORT</code>, <code>CACHEQUERY</code> ;Version 8.1* Added: pragma expression for temporarily setting database options{{Option|IGNORECERT}}, {{Option|RESTPATH}} ;Version 8.0* Added: {{Option|MIXUPDATES}}, {{Option|AUTOOPTIMIZE}}, {{Option|AUTHMETHOD}}, {{Option|XINCLUDE}}* Updated: {{Option|PROXYPORT}}: default set to 0; will be ignored. {{Option|PROXYHOST}}, {{Option|NONPROXYHOSTS}}: empty strings will be ignored. ;Version 7.8.1* Updated: {{Option|ADDARCHIVES}}: parsing of TAR and TGZ files. ;Version 7.8 * Added: {{Option|CSVPARSER}}, {{Option|JSONPARSER}}, {{Option|TEXTPARSER}}, {{Option|HTMLPARSER}}, {{Option|INLINELIMIT}}, {{Option|TAILCALLS}}, {{Option|DEFAULTDB}}, {{Option|RUNQUERY}}* Updated: {{Option|WRITEBACK}} only applies to main-memory document instances.* Updated: {{Option|DEBUG}} option can be changed at runtime by users with admin permissions.* Updated: default of {{Option|INTPARSE}} is now {{Code|false}}.* Removed: <code>[[#STRIPNS|STRIPNS]]HTMLOPT</code>(replaced with {{Option|HTMLPARSER}}), <code>[[#LOGMSGMAXLEN|LOGMSGMAXLEN]]PARSEROPT</code>(replaced with parser-specific options), <code>[[#GC|GC]]DOTDISPLAY</code>, <code>[[#LOG|LOG]]DOTTY</code> ;Version 7.7* Added: {{Option|ADDCACHE}}, {{Option|CHECKSTRINGS}}, {{Option|FTINDEXSPLITSIZE}}, {{Option|INDEXSPLITSIZE}} ;Version 7.6* Added: {{Option|GLOBALLOCK}}* Added: store local options in configuration file after {{Code|# Local Options}} comments. ;Version 7.5* Added: options can now be set via system properties* Added: a pragma expression can be used to locally change database options* Added: {{Option|USER}}, {{Option|PASSWORD}}, {{Option|LOG}}, {{Option|LOGMSGMAXLEN}}, {{Option|WEBPATH}}, {{Option|RESTXQPATH}}{{Option|HTTPLOCAL}}, {{Option|CREATEONLY}}, {{Option|STRIPNS}}* Removed: {{Code|HTTPPATH}}; {{Code|HTTPPORT}}: {{Code|jetty.xml}} configuration file is used instead* Removed: global options cannot be changed anymore during the lifetime of a BaseX instance
;Version 7.3
 * Updated: <code>[[#KEEPALIVE{{Option|KEEPALIVE]]</code>}}, <code>[[#TIMEOUT{{Option|TIMEOUT]]</code>}}: default values changed
* Removed: {{Code|WILDCARDS}}; new index supports both fuzzy and wildcard queries
* Removed: {{Code|SCORING}}; new scoring model will focus on lengths of text nodes and match options
;Version 7.2
 * Added: <code>[[#PROXYHOST{{Option|PROXYHOST]]</code>}}, <code>[[#PROXYPORT{{Option|PROXYPORT]]</code>}}, <code>[[#NONPROXYHOSTS{{Option|NONPROXYHOSTS]]</code>}}, <code>[[#HTMLOPT{{Option|HTMLOPT]]</code>}}* Updated: <code>[[#TIMEOUT{{Option|TIMEOUT]]</code>}}: ignore timeout for admin users
;Version 7.1
 * Added: <code>[[#ADDRAW{{Option|ADDRAW]]</code>}}, <code>[[#MAXLEN{{Option|MAXLEN]]</code>}}, <code>[[#MAXCATS{{Option|MAXCATS]]</code>}}, <code>[[#UPDINDEX{{Option|UPDINDEX]]</code>}}* Updated: <code>[[#BINDINGS{{Option|BINDINGS]]</code>}}
;Version 7.0
 * Added: <code>[[#SERVERHOST{{Option|SERVERHOST]]</code>}}, <code>[[#KEEPALIVE{{Option|KEEPALIVE]]</code>}}, <code>[[#AUTOFLUSH{{Option|AUTOFLUSH]]</code>}}, <code>[[#QUERYPATH{{Option|QUERYPATH]]</code>}}
CG
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