SQL查询更新与选择

Question

我希望通过设置值通过选择状态更新记录..

查询应该看起来像这样;

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' 

这个查询的正确格式是什么？

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' 

最好是将Date类型的变量保存到to_date（...）。

希望这会有所帮助。