{"Entry":{"collection":"sql","key":"rollback","name":"ROLLBACK","aliases":["rollback"],"metadata":{"aliases":["rollback"],"changed_in":["6.5","12"],"changes":[{"from":"6.4","purpose_changed":false,"renamed":null,"sections":{"added":[],"changed":["description","usage","compatibility"],"removed":[]},"status":"changed","synopsis":{"added":["ROLLBACK [ WORK | TRANSACTION ]"],"removed":[]},"to":"6.5"},{"from":"6.5","purpose_changed":false,"renamed":null,"sections":{"added":[],"changed":["description","compatibility"],"removed":[]},"status":"changed","synopsis":null,"to":"7.0"},{"from":"7.0","purpose_changed":false,"renamed":{"from_file":"sql-rollback.htm","to_file":"sql-rollback.html"},"sections":{"added":[],"changed":[],"removed":[]},"status":"changed","synopsis":null,"to":"7.1"},{"from":"7.1","purpose_changed":true,"renamed":null,"sections":{"added":[],"changed":[],"removed":[]},"status":"changed","synopsis":null,"to":"7.2"},{"from":"7.3","purpose_changed":false,"renamed":null,"sections":{"added":["parameters","notes","examples","see_also"],"changed":["description","compatibility"],"removed":["usage"]},"status":"changed","synopsis":null,"to":"7.4"},{"from":"7.4","purpose_changed":false,"renamed":null,"sections":{"added":[],"changed":["see_also"],"removed":[]},"status":"changed","synopsis":null,"to":"8.0"},{"from":"9.3","purpose_changed":false,"renamed":null,"sections":{"added":[],"changed":["notes"],"removed":[]},"status":"changed","synopsis":null,"to":"9.4"},{"from":"11","purpose_changed":false,"renamed":null,"sections":{"added":[],"changed":["parameters","notes","compatibility"],"removed":[]},"status":"changed","synopsis":{"added":["ROLLBACK [ WORK | TRANSACTION ] [ AND [ NO ] CHAIN ]"],"removed":[]},"to":"12"},{"from":"15","purpose_changed":false,"renamed":null,"sections":{"added":[],"changed":["parameters"],"removed":[]},"status":"changed","synopsis":null,"to":"16"}],"content_hash":"992ee35d8007469a1c868f499e94925fe0dea762376817683894693edbfe6855","editorial":{},"first_version":"6.4","group":"transaction","imported_at":"2026-09-30T17:43:39.33716+08:00","last_version":"20","name":"ROLLBACK","object":"","position":13004,"present_in":["6.4","6.5","7.0","7.1","7.2","7.3","7.4","8.0","8.1","8.2","8.3","8.4","9.0","9.1","9.2","9.3","9.4","9.5","9.6","10","11","12","13","14","15","16","17","18","19","20"],"purpose":"abort the current transaction","purpose_zh":"","related":["begin","commit","rollback-to-savepoint"],"slug":"rollback","source_rev":"a709ab85","synopsis":"ROLLBACK [ WORK | TRANSACTION ] [ AND [ NO ] CHAIN ]","verb":"ROLLBACK"}},"Definition":{"Collection":"sql","Key":"rollback","SourceDatabase":"center","Version":"18","SourceTable":"sqlcmd","SourceKey":"rollback","SourceRevision":"a709ab85","Facts":{"anchor":"SQL-ROLLBACK","file":"sql-rollback.html","lang":"en","name":"ROLLBACK","purpose":"abort the current transaction","purpose_zh":"","related":["begin","commit","rollback-to-savepoint"],"sections":[{"html":"\u003cp\u003e\u003ccode class=\"command\"\u003eROLLBACK\u003c/code\u003e rolls back the current transaction and causes all the updates made by the transaction to be discarded.\u003c/p\u003e","key":"description","title":"Description"},{"html":"\u003cdiv class=\"variablelist\"\u003e\u003cdl class=\"variablelist\"\u003e\u003cdt\u003e\u003cspan class=\"term\"\u003e\u003ccode class=\"literal\"\u003eWORK\u003c/code\u003e\u003cbr\u003e\u003c/span\u003e\u003cspan class=\"term\"\u003e\u003ccode class=\"literal\"\u003eTRANSACTION\u003c/code\u003e\u003c/span\u003e\u003c/dt\u003e\u003cdd\u003e\u003cp\u003eOptional key words. They have no effect.\u003c/p\u003e\u003c/dd\u003e\u003cdt\u003e\u003cspan class=\"term\"\u003e\u003ccode class=\"literal\"\u003eAND CHAIN\u003c/code\u003e\u003c/span\u003e\u003c/dt\u003e\u003cdd\u003e\u003cp\u003eIf \u003ccode class=\"literal\"\u003eAND CHAIN\u003c/code\u003e is specified, a new (not aborted) transaction is immediately started with the same transaction characteristics (see \u003ca href=\"/docs/18/sql-set-transaction.html\" title=\"SET TRANSACTION\"\u003e\u003cspan class=\"refentrytitle\"\u003eSET TRANSACTION\u003c/span\u003e\u003c/a\u003e) as the just finished one. Otherwise, no new transaction is started.\u003c/p\u003e\u003c/dd\u003e\u003c/dl\u003e\u003c/div\u003e","key":"parameters","title":"Parameters"},{"html":"\u003cp\u003eUse \u003ca href=\"/docs/18/sql-commit.html\" title=\"COMMIT\"\u003e\u003ccode class=\"command\"\u003eCOMMIT\u003c/code\u003e\u003c/a\u003e to successfully terminate a transaction.\u003c/p\u003e\u003cp\u003eIssuing \u003ccode class=\"command\"\u003eROLLBACK\u003c/code\u003e outside of a transaction block emits a warning and otherwise has no effect. \u003ccode class=\"command\"\u003eROLLBACK AND CHAIN\u003c/code\u003e outside of a transaction block is an error.\u003c/p\u003e","key":"notes","title":"Notes"},{"html":"\u003cp\u003eTo abort all changes:\u003c/p\u003e\u003cpre class=\"programlisting\"\u003eROLLBACK;\n\u003c/pre\u003e","key":"examples","title":"Examples"},{"html":"\u003cp\u003eThe command \u003ccode class=\"command\"\u003eROLLBACK\u003c/code\u003e conforms to the SQL standard. The form \u003ccode class=\"literal\"\u003eROLLBACK TRANSACTION\u003c/code\u003e is a PostgreSQL extension.\u003c/p\u003e","key":"compatibility","title":"Compatibility"},{"html":"\u003cspan class=\"simplelist\"\u003e\u003ca href=\"/wiki/sql/begin/?v=18\" title=\"BEGIN\"\u003e\u003cspan class=\"refentrytitle\"\u003eBEGIN\u003c/span\u003e\u003c/a\u003e, \u003ca href=\"/wiki/sql/commit/?v=18\" title=\"COMMIT\"\u003e\u003cspan class=\"refentrytitle\"\u003eCOMMIT\u003c/span\u003e\u003c/a\u003e, \u003ca href=\"/wiki/sql/rollback-to-savepoint/?v=18\" title=\"ROLLBACK TO SAVEPOINT\"\u003e\u003cspan class=\"refentrytitle\"\u003eROLLBACK TO SAVEPOINT\u003c/span\u003e\u003c/a\u003e\u003c/span\u003e","key":"see_also","title":"See Also"}],"sections_same_as":"","slug":"18","synopsis_html":"ROLLBACK [ WORK | TRANSACTION ] [ AND [ NO ] CHAIN ]","synopsis_text":"ROLLBACK [ WORK | TRANSACTION ] [ AND [ NO ] CHAIN ]"},"ManualEvidence":{},"MeasuredEvidence":{}},"Text":{"Collection":"sql","Key":"rollback","SourceDatabase":"pgweb","Version":"18","Locale":"zh-Hans","Title":"ROLLBACK","Summary":"中止当前事务","BodyHTML":"\u003cpre\u003eROLLBACK [ WORK | TRANSACTION ] [ AND [ NO ] CHAIN ]\u003c/pre\u003e\u003csection\u003e\u003ch2\u003e描述\u003c/h2\u003e\u003cp\u003e\u003ccode\u003eROLLBACK\u003c/code\u003e回滚当前事务，并丢弃该事务所做的全部更新。\u003c/p\u003e\u003c/section\u003e\u003csection\u003e\u003ch2\u003e参数\u003c/h2\u003e\u003cdiv\u003e\u003cdl\u003e\u003cdt\u003e\u003cspan\u003e\u003ccode\u003eWORK\u003c/code\u003e\u003cbr\u003e\u003c/span\u003e\u003cspan\u003e\u003ccode\u003eTRANSACTION\u003c/code\u003e\u003c/span\u003e\u003c/dt\u003e\u003cdd\u003e\u003cp\u003e可选关键字，没有任何作用。\u003c/p\u003e\u003c/dd\u003e\u003cdt\u003e\u003cspan\u003e\u003ccode\u003eAND CHAIN\u003c/code\u003e\u003c/span\u003e\u003c/dt\u003e\u003cdd\u003e\u003cp\u003e如果指定了\u003ccode\u003eAND CHAIN\u003c/code\u003e，则会立即启动一个新的（未中止的）事务，其事务特征与刚刚结束的事务相同（参见\u003ca href=\"/docs/18/sql-set-transaction.html\" title=\"SET TRANSACTION\" rel=\"nofollow\"\u003e\u003cspan\u003eSET TRANSACTION\u003c/span\u003e\u003c/a\u003e）。否则，不会启动任何新事务。\u003c/p\u003e\u003c/dd\u003e\u003c/dl\u003e\u003c/div\u003e\u003c/section\u003e\u003csection\u003e\u003ch2\u003e注解\u003c/h2\u003e\u003cp\u003e使用\u003ca href=\"/docs/18/sql-commit.html\" title=\"COMMIT\" rel=\"nofollow\"\u003e\u003ccode\u003eCOMMIT\u003c/code\u003e\u003c/a\u003e可成功地终止一个事务。\u003c/p\u003e\u003cp\u003e在事务块之外发出\u003ccode\u003eROLLBACK\u003c/code\u003e不会造成任何影响，但会产生一条警告消息。事务块之外的\u003ccode\u003eROLLBACK AND CHAIN\u003c/code\u003e则会报错。\u003c/p\u003e\u003c/section\u003e\u003csection\u003e\u003ch2\u003e示例\u003c/h2\u003e\u003cp\u003e要中止所有更改：\u003c/p\u003e\u003cpre\u003eROLLBACK;\n\u003c/pre\u003e\u003c/section\u003e\u003csection\u003e\u003ch2\u003e兼容性\u003c/h2\u003e\u003cp\u003e命令\u003ccode\u003eROLLBACK\u003c/code\u003e符合 SQL 标准。形式\u003ccode\u003eROLLBACK TRANSACTION\u003c/code\u003e是\u003cspan\u003ePostgreSQL\u003c/span\u003e扩展。\u003c/p\u003e\u003c/section\u003e\u003csection\u003e\u003ch2\u003e另见\u003c/h2\u003e\u003cspan\u003e\u003ca href=\"/wiki/sql/begin/?v=18\" title=\"BEGIN\" rel=\"nofollow\"\u003e\u003cspan\u003eBEGIN\u003c/span\u003e\u003c/a\u003e, \u003ca href=\"/wiki/sql/commit/?v=18\" title=\"COMMIT\" rel=\"nofollow\"\u003e\u003cspan\u003eCOMMIT\u003c/span\u003e\u003c/a\u003e, \u003ca href=\"/wiki/sql/rollback-to-savepoint/?v=18\" title=\"ROLLBACK TO SAVEPOINT\" rel=\"nofollow\"\u003e\u003cspan\u003eROLLBACK TO SAVEPOINT\u003c/span\u003e\u003c/a\u003e\u003c/span\u003e\u003c/section\u003e","SourceRevision":"1b5ca64c","ContentHash":"c2bf766b1cde0c34d35d5f73cc308018db72ad8926dfcf40be868f43e1996f1d","Payload":{"purpose_zh":"中止当前事务","sections":[{"html":"\u003cp\u003e\u003ccode class=\"command\"\u003eROLLBACK\u003c/code\u003e回滚当前事务，并丢弃该事务所做的全部更新。\u003c/p\u003e","key":"description","title":"描述"},{"html":"\u003cdiv class=\"variablelist\"\u003e\u003cdl class=\"variablelist\"\u003e\u003cdt\u003e\u003cspan class=\"term\"\u003e\u003ccode class=\"literal\"\u003eWORK\u003c/code\u003e\u003cbr\u003e\u003c/span\u003e\u003cspan class=\"term\"\u003e\u003ccode class=\"literal\"\u003eTRANSACTION\u003c/code\u003e\u003c/span\u003e\u003c/dt\u003e\u003cdd\u003e\u003cp\u003e可选关键字，没有任何作用。\u003c/p\u003e\u003c/dd\u003e\u003cdt\u003e\u003cspan class=\"term\"\u003e\u003ccode class=\"literal\"\u003eAND CHAIN\u003c/code\u003e\u003c/span\u003e\u003c/dt\u003e\u003cdd\u003e\u003cp\u003e如果指定了\u003ccode class=\"literal\"\u003eAND CHAIN\u003c/code\u003e，则会立即启动一个新的（未中止的）事务，其事务特征与刚刚结束的事务相同（参见\u003ca href=\"/docs/18/sql-set-transaction.html\" title=\"SET TRANSACTION\"\u003e\u003cspan class=\"refentrytitle\"\u003eSET TRANSACTION\u003c/span\u003e\u003c/a\u003e）。否则，不会启动任何新事务。\u003c/p\u003e\u003c/dd\u003e\u003c/dl\u003e\u003c/div\u003e","key":"parameters","title":"参数"},{"html":"\u003cp\u003e使用\u003ca href=\"/docs/18/sql-commit.html\" title=\"COMMIT\"\u003e\u003ccode class=\"command\"\u003eCOMMIT\u003c/code\u003e\u003c/a\u003e可成功地终止一个事务。\u003c/p\u003e\u003cp\u003e在事务块之外发出\u003ccode class=\"command\"\u003eROLLBACK\u003c/code\u003e不会造成任何影响，但会产生一条警告消息。事务块之外的\u003ccode class=\"command\"\u003eROLLBACK AND CHAIN\u003c/code\u003e则会报错。\u003c/p\u003e","key":"notes","title":"注解"},{"html":"\u003cp\u003e要中止所有更改：\u003c/p\u003e\u003cpre class=\"programlisting\"\u003eROLLBACK;\n\u003c/pre\u003e","key":"examples","title":"示例"},{"html":"\u003cp\u003e命令\u003ccode class=\"command\"\u003eROLLBACK\u003c/code\u003e符合 SQL 标准。形式\u003ccode class=\"literal\"\u003eROLLBACK TRANSACTION\u003c/code\u003e是\u003cspan class=\"productname\"\u003ePostgreSQL\u003c/span\u003e扩展。\u003c/p\u003e","key":"compatibility","title":"兼容性"},{"html":"\u003cspan class=\"simplelist\"\u003e\u003ca href=\"/wiki/sql/begin/?v=18\" title=\"BEGIN\"\u003e\u003cspan class=\"refentrytitle\"\u003eBEGIN\u003c/span\u003e\u003c/a\u003e, \u003ca href=\"/wiki/sql/commit/?v=18\" title=\"COMMIT\"\u003e\u003cspan class=\"refentrytitle\"\u003eCOMMIT\u003c/span\u003e\u003c/a\u003e, \u003ca href=\"/wiki/sql/rollback-to-savepoint/?v=18\" title=\"ROLLBACK TO SAVEPOINT\"\u003e\u003cspan class=\"refentrytitle\"\u003eROLLBACK TO SAVEPOINT\u003c/span\u003e\u003c/a\u003e\u003c/span\u003e","key":"see_also","title":"另见"}],"sections_same_as":"","synopsis_html":"ROLLBACK [ WORK | TRANSACTION ] [ AND [ NO ] CHAIN ]","synopsis_text":"ROLLBACK [ WORK | TRANSACTION ] [ AND [ NO ] CHAIN ]"}},"RequestedLocale":"zh-Hans","Fallback":false,"Versions":["10","11","12","13","14","15","16","17","18","19","20","6.4","6.5","7.0","7.1","7.2","7.3","7.4","8.0","8.1","8.2","8.3","8.4","9.0","9.1","9.2","9.3","9.4","9.5","9.6"],"Locales":["en","zh-Hans"],"Signatures":null,"Spellings":null,"SQLState":null,"Evidence":null}