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我正嘗試在一個sql語句中寫入多個IF條件。 我想知道IF SMB是1,然後檢查ACT,REN或REP是否爲1,從resp表中選擇QF列,我希望單個答案爲'a'和'b'作爲它的總和。SQL中的多個IF語句
Input :
@SMB = 1,@Dealer = 0, @Act = 1, @Ren = 1, @Rep = 1
tblACT:
QF
1
2
tblREP
QF
1
2
tblREN
QF
1
2
OUTPUT :
a b
6 0
@SMB bit = 1,
@Dealer bit = 1,
@Act bit = 1,
@Ren bit = 1,
@Rep bit = 1
Select SUM(tbl.a), SUM(tbl.b) from
(If @SMB ='1'
If @ACT ='1'
CASE WHEN QF IN (1,2) THEN 1 ELSE 0 as a
CASE WHEN QF IN (4,5) THEN 1 ELSE 0 as b from tblACT
union all
If @REN='1'
CASE WHEN QF IN (1,2) THEN 1 ELSE 0 as a
CASE WHEN QF IN (4,5) THEN 1 ELSE 0 as b from tblREN
union all
If @REP='1'
CASE WHEN QF IN (1,2) THEN 1 ELSE 0 as a
CASE WHEN QF IN (4,5) THEN 1 ELSE 0 as b from tblREP
union all
If @Dealer ='1'
If @ACT ='1'
CASE WHEN QF IN (1,2) THEN 1 ELSE 0 as a
CASE WHEN QF IN (4,5) THEN 1 ELSE 0 as b from tblACT
union all
If @REN='1'
CASE WHEN QF IN (1,2) THEN 1 ELSE 0 as a
CASE WHEN QF IN (4,5) THEN 1 ELSE 0 as b from tblREN
union all
If @REP='1'
CASE WHEN QF IN (1,2) THEN 1 ELSE 0 as a
CASE WHEN QF IN (4,5) THEN 1 ELSE 0 as b from tblREP) as tbl
你需要什麼幫助?你期待什麼輸出? – 2014-11-04 18:33:00
這不起作用。它給出了語法錯誤,什麼不是 – user1989 2014-11-04 18:34:22
爲您提供表結構和表數據和輸出示例 – 2014-11-04 18:35:28