mysql撤销上一步sql语句

在MySQL中，你可以使用"rollback"命令来撤销上一步的SQL语句。如果你想撤销多个语句，可以使用"rollback to savepoint"命令，并指定一个保存点来回滚到该保存点之前的状态。请注意，回滚只在事务开启时有效，如果自动提交已打开，你需要在执行SQL语句前先使用"begin"或"start transaction"命令来开启事务。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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