SQL select ：关于SQL子查询的一个有关问题

SQL select ：关于SQL子查询的一个问题
有如下的SQL 语句：
SELECT fAcc.id, fAcc.bankAccId, fAcc.closeDate,
fAcc.closeBalance, fAcc.isActive,
SUM(fTake.[value]) as financeValue,
(fAcc.closeBalance + SUM(fTake.[value])) as balance
FROM dbo.finance_account AS fAcc INNER JOIN
dbo.finance_taking AS fTake ON fTake.financeAccId = fAcc.Id AND
fTake.[date] > fAcc.closeDate
GROUP BY fAcc.id, fAcc.bankAccId, fAcc.closeDate, fAcc.closeBalance, fAcc.isActive,fAcc.viewLevel

这里 GROUP BY 子句后面列出的一大串完全是笨拙得让人抓急：在select 子句中每增加 finance_account 的一列那就要在 GROUP BY 子句中同时添加一次。怎么写这个 select 才好? (不想用聚合函数，因为这里的join 条件以及需要聚合的列都是很有可能要有变化的，一但用了函数，那么就可能因为该函数不可控而以后不好修改了) SQL select
[解决办法]
你这个group by不多啊，还有更长的你没见过呢，而且这个写法不是你看的不爽就可以不要的，有些写法它就是这样规定的。
[解决办法]
你是想知道简化的写法？只是写法？

SELECT   
id
,bankAccId
,closeDate
,closeBalance
,isActive
,viewLevel
,SUM([value]) as financeValue
,(fAcc.closeBalance + SUM(fTake.[value])) as balance
FROM (
select fAcc.id id
,fAcc.bankAccId bankAccId
,fAcc.closeDate closeDate
,fAcc.closeBalance closeBalance
,fAcc.isActive isActive
,fAcc.viewLevel viewLevel
,fTake.[value] [value]
from dbo.finance_account AS fAcc 
INNER JOIN dbo.finance_taking AS fTake 
ON fTake.financeAccId = fAcc.Id AND fTake.[date] &gt; fAcc.closeDate 
) t
GROUP BY 
id
,bankAccId
,closeDate
,closeBalance
,isActive
,viewLevel

[解决办法]

引用:

Quote: 引用:

要不用动态拼接。

啥意思？怎么弄？


declare @val varchar(max)
declare @sql varchar(max)
set @val='facc.id,facc.bankaccid,facc.closedate,
facc.closebalance,facc.isactive'
set @sql='select '+@sql+',sum(ftake.[value]) as financevalue,(
facc.closebalance+sum(ftake.[value])) as balance from dbo.finance_account as
facc inner join dbo.finance_taking as ftake on ftake.financeaccid=
facc.id and ftake.[date]&gt;facc.closedate group by '+@sql
exec (@sql)

不知道这样是不是楼主想要的。
[解决办法]
觉得静态SQL更好
[解决办法]

SELECT   fAcc.id, fAcc.bankAccId, fAcc.closeDate, 
          fAcc.closeBalance, fAcc.isActive,
          fTake.value as financeValue,
          (fAcc.closeBalance + fTake.value) as balance
 FROM      dbo.finance_account AS fAcc INNER JOIN
           (
             SELECT financeAccId, SUM(value) as value
              FROM dbo.finance_taking as t inner join finance_account t1 on t.financeAccId=t1.Id
              WHERE t.date &gt; fAcc.closeDate  -- 这句就OK 或者使用cte的方式
              GROUP BY financeAccId 
           ) AS fTake ON fTake.financeAccId = fAcc.Id

[解决办法]
解决问题就好，然后再考虑效率
[解决办法]
指定临时命名的结果集，这些结果集称为公用表表达式 (CTE)。该表达式源自简单查询，并且在单条 SELECT、INSERT、UPDATE 或 DELETE 语句的执行范围内定义。该子句也可用在 CREATE VIEW 语句中，作为该语句的 SELECT 定义语句的一部分。公用表表达式可以包括对自身的引用。这种表达式称为递归公用表表达式。

语法

[ WITH <common_table_expression> [ ,...n ] ]

<common_table_expression>::=
expression_name [ ( column_name [ ,...n ] ) ]
AS
( CTE_query_definition )
[解决办法]
SELECT fAcc.id, fAcc.bankAccId, fAcc.closeDate,
fAcc.closeBalance, fAcc.isActive,
app.financeValue,
(fAcc.closeBalance + app.financeValue) as balance
FROM dbo.finance_account AS fAcc
cross apply
(select SUM(fTake.[value]) as financeValue

from dbo.finance_taking AS fTake where fTake.financeAccId = fAcc.Id AND
fTake.[date] > fAcc.closeDate
) app

SQL select ：关于SQL子查询 的一个有

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SQL select ：关于SQL子查询的一个有