Tôi đã thử mã này. Vui lòng kiểm tra và cho tôi biết nếu nó hoạt động
Tôi biết rằng nó trông không tốt cho lắm. Cũng không chắc chắn nó sẽ được hiệu suất như thế nào.
--Can have more columns like A,B,...
DECLARE @tbl TABLE
(
TOTAL INT,
CHARGE FLOAT,
PAYMENT FLOAT,
MONTHYEAR VARCHAR(50)
)
--Test data
INSERT INTO @tbl SELECT 661, 157832.24, 82967.80, 'Oct2013'
INSERT INTO @tbl SELECT 612, 95030.52, 17824.28, 'Nov2013'
INSERT INTO @tbl SELECT 584 ,90256.35, 16732.91, 'Dec2013'
--Can be a physical table
CREATE TABLE #FinalTbl
(
DATA VARCHAR(100)
)
--inserted hardcode records in data column. To add it dynamically you would need to loop through information_schema.columns
--SELECT *
--FROM information_schema.columns
--WHERE table_name = 'tbl_name'
INSERT INTO #FinalTbl
VALUES ('TOTAL')
INSERT INTO #FinalTbl
VALUES ('CHARGE')
INSERT INTO #FinalTbl
VALUES ('PAYMENT')
DECLARE @StartCount INT, @TotalCount INT, @Query VARCHAR(5000), @TOTAL INT,@CHARGE FLOAT,@PAYMENT FLOAT,@MONTHYEAR VARCHAR(50)
SELECT @TotalCount = COUNT(*) FROM @tbl;
SET @StartCount = 1;
WHILE(@StartCount <= @TotalCount)
BEGIN
SELECT @TOTAL = TOTAL,
@CHARGE = CHARGE,
@PAYMENT = PAYMENT,
@MONTHYEAR = MONTHYEAR
FROM
(SELECT ROW_NUMBER() over(ORDER BY MONTHYEAR) AS ROWNUM, * FROM @tbl) as tbl
WHERE ROWNUM = @StartCount
SELECT @Query = 'ALTER TABLE #FinalTbl ADD ' + @MONTHYEAR + ' VARCHAR(1000)'
EXEC (@Query)
SELECT @Query = 'UPDATE #FinalTbl SET ' + @MONTHYEAR + ' = ''' + CONVERT(VARCHAR(50), @TOTAL) + ''' WHERE DATA = ''TOTAL'''
EXEC (@Query)
SELECT @Query = 'UPDATE #FinalTbl SET ' + @MONTHYEAR + ' = ''' + CONVERT(VARCHAR(50), @CHARGE) + ''' WHERE DATA = ''CHARGE'''
EXEC (@Query)
SELECT @Query = 'UPDATE #FinalTbl SET ' + @MONTHYEAR + ' = ''' + CONVERT(VARCHAR(50), @PAYMENT) + ''' WHERE DATA = ''PAYMENT'''
EXEC (@Query)
SELECT @StartCount = @StartCount + 1
END
SELECT * FROM #FinalTbl
DROP TABLE #FinalTbl
Hy vọng điều này sẽ giúp