19
Aug
Lock Objects in SAP
Posted by Admin, under ABAP, Abap Objects, DDIC, Function Modules, Module Pool, Quick Reference, Sample Code, SAP, TutorialLock objects are use in SAP to avoid the inconsistancy at the time of data is being insert/change into database.
SAP Provide three type of Lock objects.
- Read Lock(Shared Locked)
protects read access to an object. The read lock allows other transactions read access but not write access to the locked area of the table
- Write Lock(exclusive lock)
protects write access to an object. The write lock allows other transactions neither read nor write access to the locked area of the table.
- Enhanced write lock (exclusive lock without cumulating)
works like a write lock except that the enhanced write lock also protects from further accesses from the same transaction.
Type of Locks