Question

我希望通过select statemenet设置值来更新记录。

查询看起来应该是这样的;

UPDATE FCR.HEADER
SET (Value1,Value2,Value3)

(SELECT sum(AMOUNT_FC),sum(AMOUNT_DC ), value1 
FROM tableA
WHERE DATE = to_date('02/05/2006', 'dd/mm/yyyy')
GROUP BY UNIT_ID, TRX_DATE)

WHERE TRX_DATE = to_date('02/05/2006', 'dd/mm/yyyy')
AND column14 = 'some value'

此查询的正常格式是什么？

Answer 1

UPDATE FCR.HEADER
SET Value1 = (SELECT sum(AMOUNT_FC)
        FROM tableA
        WHERE DATE = to_date('02/05/2006', 'dd/mm/yyyy')
        GROUP BY UNIT_ID, TRX_DATE),

Value2 = (SELECT sum(AMOUNT_DC)
        FROM tableA
        WHERE DATE = to_date('02/05/2006', 'dd/mm/yyyy')
        GROUP BY UNIT_ID, TRX_DATE),
Value3 = (SELECT sum(AMOUNT_DC)
        FROM tableA
        WHERE DATE = to_date('02/05/2006', 'dd/mm/yyyy')
        GROUP BY UNIT_ID, TRX_DATE)

WHERE TRX_DATE = to_date('02/05/2006', 'dd/mm/yyyy')
AND column14 = 'some value'

最好使用Date类型的变量来保存to_date（...）。

希望这有帮助。

使用Select进行SQL查询更新

1 个答案: