Functions and Directives Functions and Directives

Function DbUnlockAll() Foundation

Releases all file and record locks in all work areas.

Syntax
DbUnlockAll() --> NIL
Return

The return value of DbUnlockAll() is always NIL.

Description

The database function DbUnlockAll() removes all existing record and file locks in all work areas. The function is only meaningful when files are open in SHARED mode.

The command UNLOCK ALL can be used instead of DbUnlockAll().

Examples
DbUnlockAll() 
// In the example, a record is locked before it is 
// marked as deleted. If the record could be locked, 
// all record locks are released after the deletion. 

PROCEDURE Main 

   USE Customer ALIAS Cust NEW SHARED 
   USE Invoice ALIAS Inv NEW SHARED 

   SELECT Cust 
   GOTO 10 

   IF Cust->( RLock() ) 
      Cust->( DbDelete() ) 
      ? "Record No 10 is deleted" 
   ELSE 
      ? "Record No 10 cannot be locked" 
   ENDIF 

   DbUnlockAll() 

RETURN
Feedback

If you see anything in the documentation that is not correct, does not match your experience with the particular feature or requires further clarification, please use this form to report a documentation issue.