NAME

ABORT - 退出當(dāng)前事務(wù)

SYNOPSIS

ABORT [ WORK | TRANSACTION ]

DESCRIPTION 描述

ABORT 回卷當(dāng)前事務(wù)并且廢棄所有當(dāng)前事務(wù)中做的更新。 這個(gè)命令和 SQL 命令 ROLLBACK [rollback(7)], 的行為完全一樣， 只是由于歷史原因而保留下來。  

PARAMETERS 參數(shù)

WORK

TRANSACTION

 可選的關(guān)鍵字，它們沒有什么影響。

NOTES 注意

 使用 COMMIT [commit(7)] to 成功地中止一個(gè)事務(wù)。

 如果不在事務(wù)內(nèi)部發(fā)出 ABORT 不會(huì)有問題，但是會(huì)產(chǎn)生一個(gè)警告信息。  

EXAMPLES 例子

 退出全部變更：

ABORT;

COMPATIBILITY 兼容性

 此命令是 PostgreSQL 基于歷史原因做的擴(kuò)展。 ROLLBACK 是 SQL 中等價(jià)的命令。  

SEE ALSO 參見

BEGIN [begin(7)], COMMIT [commit(l)], ROLLBACK [rollback(l)]

#p#

NAME

ABORT - abort the current transaction

SYNOPSIS

ABORT [ WORK | TRANSACTION ]

DESCRIPTION

ABORT rolls back the current transaction and causes all the updates made by the transaction to be discarded. This command is identical in behavior to the standard SQL command ROLLBACK [rollback(7)], and is present only for historical reasons.  

PARAMETERS

WORK

TRANSACTION

Optional key words. They have no effect.

NOTES

Use COMMIT [commit(7)] to successfully terminate a transaction.

Issuing ABORT when not inside a transaction does no harm, but it will provoke a warning message.  

EXAMPLES

To abort all changes:

ABORT;

COMPATIBILITY

This command is a PostgreSQL extension present for historical reasons. ROLLBACK is the equivalent standard SQL command.  

SEE ALSO

BEGIN [begin(7)], COMMIT [commit(l)], ROLLBACK [rollback(l)]