1
我想同时更新10列以上,我的问题是我想把所有这些列的where子句。如何在同时更新多个列的同时将多个列放在where子句中?
我的代码是:
UPDATE Customer AS c
SET
name = a.name,
address= a.address,
telephone = a.telephone,
--
--
--
FROM Customer a
INNER JOIN
(SELECT casenumber
, max(currentDate) AS md
FROM Customer
GROUP BY casenumber
) AS z
ON z.casenumber = a.casenumber
AND z.md = a.currentDate
WHERE (a.casenumber = c.casenumber)
在上述发言中,我要添加条件,以更新的列时,才不为0
为exmple,
UPDATE Customer AS C
SET name = a.name,
address= a.address,
...
..
WHERE a.name <> 0,
a.address <> 0,
a.telephone <> 0
....
...
是有可能把哪里条件检查每列?
任何建议都感激..
Thanyou这个解决了我的问题,但你想念CASE后WHEN .. –
谢谢,更正 –