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sql 触发器插入数据，判断数据是否存在

插入一条不存在的数据还总是执行 if语句，打印和回滚？

2025-03-16 18:14:18

推荐回答（1个）

回答1：

EXISTS里的查询写错了你这样写是查插入的数据，那当然存在了
用下面这句
select s.name from student s where s.Name in (select i.Name from inserted)

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