<div class="codebody" id="code22893"> --行转列问题 --建立測試環境 Create Table TEST (DATES Varchar(6), EMPNO Varchar(5), STYPE Varchar(1), AMOUNT Int) --插入數據 Insert TEST Select '200605','02436','A',5 Union All Select '200605','B',3 Union All Select '200605','C','D',2 Union All Select '200605','E',9 Union All Select '200605','F',7 Union All Select '200605','G',6 Union All Select '200605','02438',8 Union All Select '200605',0 Union All Select '200605',4 Union All Select '200605',1 GO --測試 --如果STYPE固定，可以這麼寫 Select DATES, EMPNO, SUM(Case STYPE When 'A' Then AMOUNT Else 0 End) As A, SUM(Case STYPE When 'B' Then AMOUNT Else 0 End) As B, SUM(Case STYPE When 'C' Then AMOUNT Else 0 End) As C, SUM(Case STYPE When 'D' Then AMOUNT Else 0 End) As D, SUM(Case STYPE When 'E' Then AMOUNT Else 0 End) As E, SUM(Case STYPE When 'F' Then AMOUNT Else 0 End) As F, SUM(Case STYPE When 'G' Then AMOUNT Else 0 End) As G From TEST Group By DATES,EMPNO Order By DATES,EMPNO --如果STYPE不固定，用動態語句 Declare @S Varchar(1000) Set @S='' Select @S=@S+',SUM(Case STYPE When '''+STYPE+''' Then AMOUNT Else 0 End) As '+STYPE From (Select distinct STYPE From TEST) A Order By STYPE Set @S='Select DATES,EMPNO'+@S+' From TEST Group By DATES,EMPNO Order By DATES,EMPNO' EXEC(@S) GO --如果被转置的是数字类型的话，应用下列语句 DECLARE @S VARCHAR(1000) SET @S='SELECT DATES,EMPNO ' SELECT @S=@S+',['+STYPE+']=SUM(CASE WHEN STYPE='''+STYPE+''' THEN AMOUNT ELSE 0 END)' FROM (Select distinct STYPE From TEST) A Order By STYPE SET @S=@S+' FROM TEST GROUP BY DATES,EMPNO' EXEC(@S)
如果是列转行的话直接Union All就可以了 例如 ： city style color 46 48 50 52 长沙 S6MF01002 152 1 2 2 1 长沙 S6MF01002 201 1 2 2 1 上面到下面的样子 city style color size qty 长沙 S6MF01002 152 46 1 长沙 S6MF01002 152 48 2 长沙 S6MF01002 152 50 2 长沙 S6MF01002 152 52 1 长沙 S6MF01002 201 46 1 长沙 S6MF01002 201 48 2 长沙 S6MF01002 201 50 2 长沙 S6MF01002 201 52 1 Select City,Style,Color,[46] From Test Union all Select City,[48] From Test Union all Select City,[50] From Test Union all Select City,[52] From Test 就可以了
