在mysql中保存点提交回滚

Question

我们如何在mysql中使用commit，rollback和savepoint？

Answer 1

CREATE TABLE t_test (id INT NOT NULL PRIMARY KEY) ENGINE=InnoDB;

START TRANSACTION;

INSERT
INTO    t_test
VALUES  (1);

SELECT  *
FROM    t_test;

 id
---
  1

SAVEPOINT tran2;

INSERT
INTO    t_test
VALUES  (2);

SELECT  *
FROM    t_test;

 id
---
  1
  2

ROLLBACK TO tran2;

SELECT  *
FROM    t_test;

 id
---
  1

ROLLBACK;

SELECT  *
FROM    t_test;

 id
---

Answer 2

mysql> start transaction;
mysql> savepoint id;

在此您可以更改表数据，然后：

mysql> rollback to savepoint id;

查看数据，最后：

mysql> release savepoint id;