Caché ObjectScript Reference - InterSystems Documentation

System and Other FunctionsEvery time the block is updated, its version is incremented by 1. This version number is resetonly at startup and is not stored in a journal file. The zero-based block number tells where tolocate the directory block in a journal file. For example:OPEN jfile:("rf":8192)USE jfile:blocknumberREAD xSee Also• Using ObjectScript for Transaction Processing in Using Caché ObjectScript• Journaling in the Caché High Availability Guide$ZUTIL(78,29)Flushes journal buffer.$ZUTIL(78,29)$ZU(78,29)DescriptionAs part of rolling back a failed transaction, you need to flush to disk the journal buffer associatedwith that transaction. To do so, you use the $ZUTIL(78,29) function.You must have the %Admin_Manage:Use privilege to execute any of the $ZUTIL(78) functions.These functions can also be invoked by % routines located in the manager's directory.For further details, refer to the Privileges and Permissions chapter of the Caché SecurityAdministration Guide.$ZUTIL(78,29) returns a 1 if the buffer flush is successful, and a 0 if the buffer flush is notsuccessful.See Also• TROLLBACK command• Using ObjectScript for Transaction Processing in Using Caché ObjectScript• Journaling in the Caché High Availability Guide688 Caché ObjectScript Reference