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我有一個SQL查詢在執行時給出了一個錯誤SQL查詢具有多個選擇的排序錯誤
「文本,ntext和圖像數據類型不能比較或排序,當使用IS NULL或LIKE操作除。「
查詢是
SELECT Count(*) AS present,
(SELECT Count(counted)
FROM (SELECT attdate AS counted
FROM gtab85
WHERE attdate >= '01/10/2014'
AND attdate <= '11/10/2014'
GROUP BY attdate) AS derived) AS working,
gtab86.staffname
FROM gtab85 AS A
INNER JOIN gtab86
ON gtab86.staffid = A.userid
WHERE attdate >= '01/10/2014'
AND attdate <= '11/10/2014'
GROUP BY userid,
staffname
當我執行以下部分
SELECT Count(*) AS present,
(SELECT Count(counted)
FROM (SELECT attdate AS counted
FROM gtab85
WHERE attdate >= '01/10/2014'
AND attdate <= '11/10/2014'
GROUP BY attdate) AS derived) AS working
我以未排序的方式得到結果。請幫助我解決此問題。
顯然'staffname'是一個文本或ntext列。如果您希望它在group by子句中使用,則可以將其轉換爲varchar。比較... – 2014-10-11 05:27:37