我有两列( TSD_BALANCEUNITS和TSD_UNITSINCERT )。 TSD_BALANCEUNITS 有数值, TSD_UNITSINCERT 有0.00
通过使用光标我想将 TSD_BALANCEUNITS 的值更新为 TSD_UNITSINCERT ,直到从 TSD_BALANCEUNITS 更新为的值总和为止TSD_UNITSINCERT 等于199.00
当移动值的总和等于 199.00 时,并且正在更新的 TSD_BALANCEUNITS 的值变为0.00并移至 TSD_UNITSINCERT / p>
以下是我正在使用的脚本......
DECLARE @cnt INT = 0;
DECLARE @TSD_BALANCEUNITS AS DECIMAL(25, 4)
DECLARE @TSD_UNITSINCERT AS DECIMAL(25, 4)
DECLARE @CHECKFLAG AS DECIMAL(25, 4)
DECLARE LOCK_CERT_UNITS CURSOR LOCAL STATIC
FOR
SELECT TSD_BALANCEUNITS
,TSD_UNITSINCERT
FROM IS_TRX_TRX_PROCESSED
WHERE (TSD_ACCCODE = 8775)
AND TSD_BALANCEUNITS > 0
ORDER BY TSD_REALIZEDDATE ASC
OPEN LOCK_CERT_UNITS
FETCH NEXT
FROM LOCK_CERT_UNITS
INTO @TSD_BALANCEUNITS
,@TSD_UNITSINCERT
WHILE @@FETCH_STATUS = 0 --AND @cnt < 199.00
BEGIN
SET @TSD_UNITSINCERT = @TSD_BALANCEUNITS
SET @CHECKFLAG = + @TSD_BALANCEUNITS
IF (SUM(@CHECKFLAG) <= 199.00)
BEGIN
UPDATE IS_TRX_TRX_PROCESSED
SET TSD_UNITSINCERT = TSD_BALANCEUNITS
WHERE (TSD_ACCCODE = 8775)
AND TSD_BALANCEUNITS > 0
END
PRINT 'BALANCE UNIT =' + CONVERT(VARCHAR(50), @TSD_BALANCEUNITS) + ' ==> ' + 'CERT IN UNITS =' + CONVERT(VARCHAR(50), @TSD_UNITSINCERT);
FETCH NEXT
FROM LOCK_CERT_UNITS
INTO @TSD_BALANCEUNITS
,@TSD_UNITSINCERT
END
CLOSE LOCK_CERT_UNITS
DEALLOCATE LOCK_CERT_UNITS
GO
答案 0 :(得分:0)
此命令:
UPDATE IS_TRX_TRX_PROCESSED
SET TSD_UNITSINCERT = TSD_BALANCEUNITS
WHERE (TSD_ACCCODE = 8775)
AND TSD_BALANCEUNITS > 0
更新所有TSD_ACCCODE = 8775和TSD_BALANCEUNITS&gt;的记录。 0,如果它的总和为999并不重要,你需要以某种方式识别必须更新的记录。
其次,根据结果,这种情况从未发生过。这意味着IF (SUM(@CHECKFLAG) <= 199.00)
永远不会成立。我想因为你从未将它的值初始化为0。
SET @CHECKFLAG = 0;