The enqueue trace allows you to track the locking and unlocking statements that your application or the SAP system uses, and the locking objects and parameters to which they apply. You can display and analyze the logged trace entries in the trace file.
While the enqueue trace is switched on, the system records all of the locking and unlocking statements that occur for a user or group of users.
The trace recording contains the following information:
· Lock statements executed
· Table names of the lock event
· Name of the program that set the lock
· Type of lock
· Lock owner
· Total time required for the lock
· Time required by the enqueue server to release the lock
For further information refer to: