Application Program Features
All SQL programs execute as part of an application process. An application process involves the execution of one or more programs, and is the unit to which DB2 allocates resources and locks. Different application processes might involve the execution of different programs, or different executions of the same program. The means of initiating and terminating an application process are dependent on the environment.
COMMIT, ROLLBACK, and SAVEPOINT
More than one application process might request access to the same data at the same time. Locking is used to maintain data integrity under such conditions, preventing, for example, two application processes from updating the same row of data simultaneously. For more information ...
Get DB2® Universal Database for OS/390® Version 7.1 Certification Guide now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
