計算列 - 關鍵字'附近時語法不正確'

我想將計算列添加到SQL Server 2008 Express表。計算列 - 關鍵字'附近時語法不正確'

其計算公式爲：

case when callrecord_contacttype=1 then 'Routed voice' 
else when callrecord_contacttype=2 then 'Direct incoming voice' 
else when callrecord_contacttype=3 then 'Direct outgoing voice' 
else when callrecord_contacttype=4 then 'Direct internal voice' 
else when callrecord_contacttype=5 then 'Routed callback' 
else when callrecord_contacttype=6 then 'Routed email' 
else when callrecord_contacttype=7 then 'Direct outgoing email' 
else when callrecord_contacttype=8 then 'Routed chat' else '' end

但我得到的錯誤：

Incorrect syntax near the keyword 'when'.

來源

2014-01-08 Mark

嘗試：

case callrecord_contacttype 
    when 1 then 'Routed voice' 
    when 2 then 'Direct incoming voice' 
    when 3 then 'Direct outgoing voice' 
    when 4 then 'Direct internal voice' 
    when 5 then 'Routed callback' 
    when 6 then 'Routed email' 
    when 7 then 'Direct outgoing email' 
    when 8 then 'Routed chat' 
    else '' 
end

見http://msdn.microsoft.com/en-us/library/ms181765.aspx語法。

來源

2014-01-08 09:41:27 cubitouch

只有1 ELSE在您的查詢：

case when callrecord_contacttype=1 then 'Routed voice' 
when callrecord_contacttype=2 then 'Direct incoming voice' 
when callrecord_contacttype=3 then 'Direct outgoing voice' 
when callrecord_contacttype=4 then 'Direct internal voice' 
when callrecord_contacttype=5 then 'Routed callback' 
when callrecord_contacttype=6 then 'Routed email' 
when callrecord_contacttype=7 then 'Direct outgoing email' 
when callrecord_contacttype=8 then 'Routed chat' 
else '' end

來源

2014-01-08 09:41:53 MusicLovingIndianGirl

else只屬於最終，非條件子句：

case when callrecord_contacttype=1 then 'Routed voice' 
    when callrecord_contacttype=2 then 'Direct incoming voice' 
    when callrecord_contacttype=3 then 'Direct outgoing voice' 
    when callrecord_contacttype=4 then 'Direct internal voice' 
    when callrecord_contacttype=5 then 'Routed callback' 
    when callrecord_contacttype=6 then 'Routed email' 
    when callrecord_contacttype=7 then 'Direct outgoing email' 
    when callrecord_contacttype=8 then 'Routed chat' 
    else '' end

來源

2014-01-08 09:42:05

只有一個else可以在case。 Look at examples

case when callrecord_contacttype=1 then 'Routed voice' 
    when callrecord_contacttype=2 then 'Direct incoming voice' 
    when callrecord_contacttype=3 then 'Direct outgoing voice' 
    when callrecord_contacttype=4 then 'Direct internal voice' 
    when callrecord_contacttype=5 then 'Routed callback' 
    when callrecord_contacttype=6 then 'Routed email' 
    when callrecord_contacttype=7 then 'Direct outgoing email' 
    when callrecord_contacttype=8 then 'Routed chat' 
else '' end

來源

2014-01-08 09:42:08 slavoo

刪除Else，然後再試一次。

case when callrecord_contacttype=1 then 'Routed voice' 
when callrecord_contacttype=2 then 'Direct incoming voice' 
when callrecord_contacttype=3 then 'Direct outgoing voice' 
when callrecord_contacttype=4 then 'Direct internal voice' 
when callrecord_contacttype=5 then 'Routed callback' 
when callrecord_contacttype=6 then 'Routed email' 
when callrecord_contacttype=7 then 'Direct outgoing email' 
when callrecord_contacttype=8 then 'Routed chat' else '' end

來源

2014-01-08 09:42:37 DaImTo

SELECT 
    CASE @TestVal 
    WHEN 1 THEN 'First' 
    WHEN 2 THEN 'Second' 
    WHEN 3 THEN 'Third' 
    ELSE 'Other' 
END

也許你可以嘗試將其更改爲情況下callrecord_contacttype 1時，然後 '選路聲音' 2時，那麼 '直接傳入的聲音' 等

來源

2014-01-08 09:43:53 prasthakur

計算列 - 關鍵字'附近時語法不正確'

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