消息102，級別15，狀態1，第3行'='附近的語法不正確

Question

我想從ReceiveNote中選擇，如果fromloc = 1，則打印Factory，否則必須打印Other

SELECT PurDate,
case ReceiveNote.FromLOC
when ReceiveNote.FromLOC = '1' THEN 'Factory'
when ReceiveNote.FromLOC = '2' THEN 'Other'
else ''
end as FromLOC FROM tbl1

Answer 1

您已經在CASE詞后指定了字段。 無需再次指定。

SELECT PurDate,
       CASE ReceiveNote.FromLOC
            WHEN '1' THEN 'Factory'
            WHEN '2' THEN 'Other'
            ELSE ''
       END AS FromLOC 
  FROM tbl1

這是有關CASE for tsql的文檔

Answer 2

SELECT PurDate,
case when ReceiveNote.FromLOC = '1' THEN 'Factory'
when ReceiveNote.FromLOC = '2' THEN 'Other'
else ''
end as FromLOC FROM tbl1