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Record Locks(记录锁)
2022-07-20 14:23:00 【Leon_Jinhai_Sun】
Record Locks(记录锁)他锁定索引对应的数据行记录。
select * from user where user_id = 7 for update;
这个词句有保证user表上user_id = 7 的记录被锁定,在当前事务没提交前,其他事务对该记录的当前读操作会被阻塞
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