Difference between revisions of "Databases"

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===Manage Collections===  
 
===Manage Collections===  
Additionaly to the creation with your choosen xml files you can start with creating an empty
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Additional to the creation with your choosen xml files you can start with creating an empty
 
collection and then add your xml files to it. Note that the <code>add</code> and <code>delete</code>  
 
collection and then add your xml files to it. Note that the <code>add</code> and <code>delete</code>  
 
commands just operate on an opened database.  
 
commands just operate on an opened database.  
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For more information see our  [[BaseX & Collections|collection tutorial]].  
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For more information see our  [[BaseX & Collections|collection tutorial]].
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===Access documents in collections===
 
===Access documents in collections===
 
The XQuery <code>collection()</code> function can be used to access documents in collections:  
 
The XQuery <code>collection()</code> function can be used to access documents in collections:  

Revision as of 17:29, 27 December 2010

Introduction

In BaseX there are two kinds of databases. It is possible to have databases with single XML files or databases with a bunch of XML files, called collections.

Database

*TODO*

Collection

Creation of a collection

You can create a collection either within the GUI or in the console version of BaseX.

  • GUI: choose File » New » Browse » choose directory and press OK
  • Console: enter basex -c "create db dbname /path/to/collection"

Manage Collections

Additional to the creation with your choosen xml files you can start with creating an empty collection and then add your xml files to it. Note that the add and delete commands just operate on an opened database.

  • Create an empty database: create db example
  • Add a document: add example.xml
  • Delete a document: delete example.xml


For more information see our collection tutorial.

Access documents in collections

The XQuery collection() function can be used to access documents in collections:

  • Returning all documents of collection ("dbname"):
    for $doc in collection("dbname") return base-uri($doc)
  • Access a specific document ("test") in collection ("dbname"):
    collection("dbname/test")//*