COMMITΒΆ

Commits an open transaction in the current session.

See also:

BEGIN , ROLLBACK , SHOW TRANSACTIONS , DESCRIBE TRANSACTION

SyntaxΒΆ

COMMIT [ WORK ]
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ParametersΒΆ

WORK

Optional keyword that provides compatibility with other database systems.

Usage NotesΒΆ

  • If two COMMIT statements in a row are executed (within the same scope), the second one is ignored. For example, in the following code, the second COMMIT has no effect; there is no open transaction to commit.

    begin;
    insert into table1 ...;
    commit;
    commit;  -- Ignored!
    
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    The rules can be more complex if you are using autonomous scoped transactions and stored procedures .

ExamplesΒΆ

Begin a transaction, insert some values into a table, and then complete the transaction by committing it:

SELECT COUNT(*) FROM A1;

----------+
 COUNT(*) |
----------+
 0        |
----------+

BEGIN NAME T3;

SELECT CURRENT_TRANSACTION();

-----------------------+
 CURRENT_TRANSACTION() |
-----------------------+
 1432071497832         |
-----------------------+

INSERT INTO A1 VALUES (1), (2);

-------------------------+
 number of rows inserted |
-------------------------+
 2                       |
-------------------------+

COMMIT;

SELECT CURRENT_TRANSACTION();

-----------------------+
 CURRENT_TRANSACTION() |
-----------------------+
 [NULL]                |
-----------------------+

SELECT LAST_TRANSACTION();

--------------------+
 LAST_TRANSACTION() |
--------------------+
 1432071497832      |
--------------------+

SELECT COUNT(*) FROM A1;

----------+
 COUNT(*) |
----------+
 2        |
----------+
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