Using the DBMS_LOCK Built-In Package ................................................. John Beresniewicz

What Is DBMS_LOCK? The Oracle RDBMS uses locks internally to provide serialized access to shared resources. DBAs and developers are most familiar with Oracle’s use of locking to control and manage concurrent access to data at the table and row levels. The DBMS_LOCK package makes the Oracle Kernel’s lock management services available to user-written applications.