我有以下SQL语句:SQL If(或Case)语句的where子句?
SELECT
WORKORDER.WONUM,
WORKORDER.WO3,
WORKORDER.DESCRIPTION WO_DESC,
WORKORDER.WORKTYPE,
WORKORDER.STATUS,
WORKORDER.WOPRIORITY,
(case when WORKORDER.CUSTREQ1=1 then 'Yes' else 'No' end) WO18,
WORKORDER.REPORTDATE,
WORKORDER.ACTFINISH,
(WORKORDER.LOCATION + ' ' +LOCATIONS.DESCRIPTION) LOC_DESC
FROM WORKORDER
LEFT OUTER JOIN LOCATIONS ON WORKORDER.LOCATION = LOCATIONS.LOCATION
WHERE
WORKORDER.HISTORYFLAG = 0
AND WORKORDER.ISTASK = 0
AND WORKORDER.STATUS = 'COMP'
AND WORKORDER.STATUSDATE >= getdate() - 1
AND WORKORDER.LOCATION LIKE 'ABC%'
我想补充一个附加条件(WHERE子句大概),这将使以下行为:
- 如果工作单WORKTYPE是“PM”和WOPRIORITY是5,不包括它!
- 如果工作单WORKTYPE为别的,允许任何优先
我不知道究竟把WHERE子句specfically限制优先下午5点在什么类型的IF或CASE语句。任何和所有的帮助,非常感谢!提前致谢!
我可能找到了解决方案!我已经添加了以下行WHERE子句的末尾:
AND (case when WORKORDER.WORKTYPE='PM' then WORKORDER.WOPRIORITY<>5)
感谢您的快速反应!你完全正确!我正在推翻它! (写我的帖子实际上帮助我意识到了这一点!) – 2011-03-02 16:30:57
你得到了答案,因为你回答最快!再次感谢! – 2011-03-02 17:41:17