| '''Summary'''
|Controls if local (database) or global (process) locking will be used for managing read and write operations. The article on [[Transaction Management]] provides more details on concurrency control.
|}
===ASYNCTIMEOUT===
{{Mark|Introduced with Version 8.5:}}
{| width='100%'
|-
| width='120' | '''Signature'''
|{{Code|ASYNCTIMEOUT [seconds]}}
|-
| '''Default'''
|{{Code|3600}}
|-
| '''Summary'''
|Specifies how long the results of queries, which have been [[Async Module|asynchronously executed]], will be cached in main memory.
|}
=Changelog=
;Version 8.5
* Added: {{Option|ASYNCTIMEOUT}}
;Version 8.4