ROLLBACK
Name
ROLLBACK -- abort the current transaction
Synopsis
ROLLBACK [ WORK | TRANSACTION ]
描述
ROLLBACK rolls back the current transaction and causes
all the updates made by the transaction to be discarded.
参数
- WORK
TRANSACTION Optional key words. They have no effect.
注解
Use COMMIT to
successfully terminate a transaction.
Issuing ROLLBACK when not inside a transaction does
no harm, but it will provoke a warning message.
例子
To abort all changes:
ROLLBACK;
兼容性
The SQL standard only specifies the two forms
ROLLBACK and ROLLBACK
WORK. Otherwise, this command is fully conforming.