oracle查询报错：ORA-01427

Posted 2023-03-23

select * from Work as p where p.pid=(select q.id from Pro as q where q.pid=(select q.id from q where q.fzr like '%"+fullname+"%'))

子查询返回的可能是多条记录。
1)
select q.id from q where q.fzr like '%"+fullname+"%'

2)
select q.id from Pro as q where q.pid=(select q.id from q where q.fzr like '%"+fullname+"%')

你先执行1）再执行2），看看哪个返回的是多条记录。

你可以改成
select * from Work as p where p.pid in (select q.id from Pro as q where q.pid in (select q.id from q where q.fzr like '%"+fullname+"%')) 参考技术A ORA-01427：单行子查询返回多个行

因此，你要再加过滤条件或者做做其他处理，直到子查询的返回结果为单条记录为止。还不明白可以再问我。希望对你有所帮助。