PL / SQL的新手...
我有以下SELECT脚本,该脚本连接了两个不同的表以获取所需的输出。
我在子查询中也有一个WHERE子句,它查看两个单独的条件:
SELECT p.provider_id, p.prov_name, ecp.*
FROM ey30h_check_provider ecp
JOIN provider p
ON ecp.provider_id = p.provider_id
JOIN ey30h_check ec
ON ecp.ey30h_check_id = ec.ey30h_check_id
WHERE (ecp.ey30h_check_id, ec.dern_number) IN
(select ec.ey30h_check_id, ec.dern_number
from ey30h_check ec
WHERE ec.dern_number = '52365214587'
AND ecp.provider_id = 50014);
此脚本的结果可以在下面看到:
我将如何为此创建DELETE脚本?
我尝试使用以下脚本对其进行一些深入研究,但这显示为'ORA-00918:列定义不明确':
DELETE from ey30h_check_provider ecp
WHERE ecp.ey30h_check_id in
(select ec.ey30h_check_id from ey30h_check ec
JOIN ey30h_check ec ON ecp.ey30h_check_id = ec.ey30h_check_id
JOIN provider p ON ecp.provider_id = p.provider_id
WHERE ec.dern_number = '52365214587'
AND ecp.provider_id = 50014);
PL / SQL的新手,所以请多多指教:)
尝试使用此:
DELETE from ey30h_check_provider ecp
WHERE ecp.ey30h_check_id in
(SELECT ecp.ey30h_check_id
FROM ey30h_check_provider ecp
JOIN provider p
ON ecp.provider_id = p.provider_id
JOIN ey30h_check ec
ON ecp.ey30h_check_id = ec.ey30h_check_id
JOIN provider p
ON ecp.provider_id = p.provider_id
WHERE (ecp.ey30h_check_id, ec.dern_number) IN
(select ec.ey30h_check_id, ec.dern_number from ey30h_check ec
WHERE ec.dern_number = '52365214587'
AND ecp.provider_id = 50014));
'ORA-00918:列被歧义定义':发生在以下情况:联接中使用的列名存在于多个表中,因此被歧义引用。在联接中,在多个表中出现的任何列名都必须在引用时为其表名加上前缀。该列应引用为TABLE.COLUMN或TABLE_ALIAS.COLUMN。
如果选择查询提供正确的输出,则删除查询不会给您带来任何问题。