Difference between revisions of "CLEAR FCACHE"
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Revision as of 14:43, 1 June 2009
Class
Performance and Optimization
Purpose
Close files that are logically closed but physically open
Syntax
CLEAR FCACHE
See Also
Description
The CLEAR FCACHE command physically closes any files that are logically closed but physically open due to the use of SET FCACHE ON. SET FCACHE ON speeds up program execution by leaving files physically open, thereby eliminating the involvement of the operating system when re-opening a file.
Normally this command should not be needed as files should be removed from the open file cache when an open request conflicts with the file's current status, for example, shared versus exclusive or update versus read-only.
Example
// Program to tidy up on exit of application clear fcache
Products
Recital Database Server, Recital Mirage Server, Recital Terminal Developer
