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在MS SQL有沒有一種方法,我可以添加一個條件列的聯合查詢,如下面的一個基於第一列的值?如何將條件列添加到MS SQL中的聯合查詢中?
基本上即時嘗試添加bin值作爲第四列,如果部分值是像('%XX')或讓它顯示0,到目前爲止,我只能夠添加另一列鏡像MAX( part_bins.bin)列,如果代碼不符合。
SELECT part_bins.part AS part,
SUM(part_bins.free_stock) AS FREE_STOCK,
MAX(PART_BINS.BIN) AS Bin
FROM part_bins
LEFT OUTER JOIN part ON part_bins.part = part.part
WHERE (part_bins.free_stock > 0)
GROUP BY part_bins.part
UNION
SELECT part.master_part AS part,
SUM(part_bins.free_stock) AS FREE_STOCK,
MAX(PART_BINS.BIN) AS Bin
FROM part_bins
LEFT OUTER JOIN part ON part_bins.part = part.part
WHERE (part_bins.free_stock > 0)
GROUP BY part.master_part
甚至可以在此查詢中添加,只有您必須在兩個查詢中添加列。 – Sharad 2013-03-13 11:45:37