Postgresql 中文操作指南
Description
ROLLBACK 回滚当前事务并导致该事务所做的所有更新被丢弃。
ROLLBACK rolls back the current transaction and causes all the updates made by the transaction to be discarded.
Parameters
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WORK__TRANSACTION #
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Optional key words. They have no effect.
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AND CHAIN #
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If AND CHAIN is specified, a new (not aborted) transaction is immediately started with the same transaction characteristics (see SET TRANSACTION) as the just finished one. Otherwise, no new transaction is started.
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Notes
使用 COMMIT 成功结束一个事务。
Use COMMIT to successfully terminate a transaction.
在事务代码块外部发出 ROLLBACK 会产生一个警告，并不会产生其他效果。 ROLLBACK AND CHAIN 在事务代码块外部会产生一个错误。
Issuing ROLLBACK outside of a transaction block emits a warning and otherwise has no effect. ROLLBACK AND CHAIN outside of a transaction block is an error.
Compatibility
命令 ROLLBACK 符合 SQL 标准。表单 ROLLBACK TRANSACTION 是 PostgreSQL 扩展。
The command ROLLBACK conforms to the SQL standard. The form ROLLBACK TRANSACTION is a PostgreSQL extension.