RELEASE
SQL - Language Statements
RELEASE
destroy a previously defined savepoint
RELEASE
savepoints
releasing
RELEASE savepoint_name
Description
RELEASE destroys a savepoint previously defined
in the current transaction.
Destroying a savepoint makes it unavailable as a rollback point,
but it has no other user visible behavior. It does not undo the
effects of commands executed after the savepoint was established.
(To do that, see .) Destroying a savepoint when
it is no longer needed may allow the system to reclaim some resources
earlier than transaction end.
RELEASE also destroys all savepoints that were
established after the named savepoint was established.
Parameters
savepoint_name
The name of the savepoint to destroy.
Notes
Specifying a savepoint name that was not previously defined is an error.
It is not possible to release a savepoint when the transaction is in
aborted state.
If multiple savepoints have the same name, only the one that was most
recently defined is released.
Examples
To establish and later destroy a savepoint:
BEGIN;
INSERT INTO table VALUES (3);
SAVEPOINT my_savepoint;
INSERT INTO table VALUES (4);
RELEASE my_savepoint;
COMMIT;
The above transaction will insert both 3 and 4.
Compatibility
RELEASE is fully conforming to the SQL standard.
See Also