Help Center > > Developer Guide> SQL Reference> SQL Syntax> RELEASE SAVEPOINT

RELEASE SAVEPOINT

Updated at:Mar 13, 2020 GMT+08:00

Function

RELEASE SAVEPOINT 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, use ROLLBACK TO SAVEPOINT. Destroying a savepoint when it is no longer needed allows the system to reclaim some resources earlier than transaction end.

RELEASE SAVEPOINT also destroys all savepoints that were established after the named savepoint was established.

Precautions

  • Specifying a savepoint name that was not previously defined causes an error.
  • It is not possible to release a savepoint when the transaction is in an aborted state.
  • If multiple savepoints have the same name, only the one that was most recently defined is released.

Syntax

RELEASE [ SAVEPOINT ] savepoint_name;

Parameter Description

savepoint_name

Specifies the name of the savepoint you want to destroy.

Examples

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
-- Create a table:
CREATE TABLE tpcds.table1(a int);

-- Start a transaction:
START TRANSACTION;

-- Insert data:
INSERT INTO tpcds.table1 VALUES (3);

-- Establish a savepoint:
SAVEPOINT my_savepoint;

-- Insert data:
INSERT INTO tpcds.table1 VALUES (4);

-- Delete the savepoint:
RELEASE SAVEPOINT my_savepoint;

-- Submit the transaction:
COMMIT;

-- Query the table content, which should contain both 3 and 4.
SELECT * FROM tpcds.table1;

-- Delete the tables:
DROP TABLE tpcds.table1;

Did you find this page helpful?

Submit successfully!

Thank you for your feedback. Your feedback helps make our documentation better.

Failed to submit the feedback. Please try again later.

Which of the following issues have you encountered?







Please complete at least one feedback item.

Content most length 200 character

Content is empty.

OK Cancel