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假设我想编写(更新)存在于我的数据库的许多表中的东西,例如 EMPID,并且我想将所有 EMPID 从 4 个数字更改为 5 个。
你会怎么写这个?它是一个正常的更新查询,write_lock开头是 a ,最后是解锁?
write_lock