Changes

|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.<br/>Note * If the option is disabled (which is the default), the limit only applies to transactions that a 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. The main reason for allowing parallel operations is to prevent slow transactions from blocking all other operations.

|If this option is turned on, 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 the BaseX instance in which the database was created is shut down. The value of this option * It is not possible to store binary resources in a main-memory database.* A main-memory database will be assigned once have no disk representation. However, it is possible to export the database via the {{Command|EXPORT}} command, and create a new databasefrom the exported file in a second step.* This option will not be available for [[Database Module#db:create|db:create]], and cannot because the database would not be changed accessible anymore after thatdatabase creation, i. e., outside the query scope.