SAP SE
Optimization of exclusive access database consistent change locks

Abstract:

Execution of an exclusive lock of a page in a database is initiated. Thereafter, subsequent to the initiation of the execution of the exclusive lock, at least one non-exclusive lock for the page in the database is received. The execution of the exclusive lock is selectively timed out based on at least one savepoint statistic. While the exclusive lock is timed out, at least one of the received non-exclusive locks is executed. Further, the exclusive lock can be restarted after the execution of the at least one of the received non-exclusive locks.