ORA-01427: 单行子查询返回多个行 这个问题怎么解决呢?
我执行一个SQL,
update irpt_departments a set (a.dept_code,a.dept_class,a.tx_dz)=
(select b.dept_code,b.dept_class,b.tx_dz from irpt_departments b where a.Id=b.parent and b.isjc='0' And b.caption Like '%基层户')
where exists (select 1 from irpt_departments b where a.Id=b.parent and b.isjc='0' and b.caption Like '%基层户' ) And a.isjc='9';
有的地方执行没事,有的地方执行提示
ORA-01427: 单行子查询返回多个行 这个问题怎么解决呢?
多谢:)
------解决方案--------------------改变你查询的条件,或者说你的查询逻辑思路,
在 set (a.dept_code,a.dept_class,a.tx_dz)=....这里查询返回了多个值,当然没法用=去匹配。
------解决方案--------------------在你的查询结果里针对a.Id=b.parent 这个条件select b.dept_code,b.dept_class,b.tx_dz from irpt_departments b where a.Id=b.parent and b.isjc='0' And b.caption Like '%基层户'返回多个值 可以先检查一下你的查询表
------解决方案--------------------单行子查询返回多个行.......这说明你的
select b.dept_code,b.dept_class,b.tx_dz from irpt_departments b where a.Id=b.parent and b.isjc='0' And b.caption Like '%基层户')
where exists (select 1 from irpt_departments b where a.Id=b.parent and b.isjc='0' and b.caption Like '%基层户' ) And a.isjc='9'有多个值.....这当然不行...
------解决方案--------------------SQL code
改成下面的试试:
UPDATE IRPT_DEPARTMENTS A
SET (A.DEPT_CODE, A.DEPT_CLASS, A.TX_DZ) = (SELECT B.DEPT_CODE,
B.DEPT_CLASS,
B.TX_DZ
FROM IRPT_DEPARTMENTS B
WHERE A.ID = B.PARENT
AND B.ISJC = '0'
AND B.CAPTION LIKE '%基层户'
AND ROWNUM = 1)
WHERE EXISTS (SELECT 1
FROM IRPT_DEPARTMENTS B
WHERE A.ID = B.PARENT
AND B.ISJC = '0'
AND B.CAPTION LIKE '%基层户'
AND ROWNUM = 1)
AND A.ISJC = '9';