Question

以下代码有效，但我想在查询结果中添加“segvalue1”列：

SELECT (SELECT SUM(DebitAmount-CreditAmount) as BalanceAmtCYTD 
FROM GLJrnDtl WITH (NOLOCK) WHERE FiscalPeriod between 1 AND 10 
AND Company = 'NVV' AND FiscalYear = 2017),

(SELECT SUM(DebitAmount-CreditAmount) as BalanceAmtCYM 
FROM GLJrnDtl WITH (NOLOCK) WHERE FiscalPeriod = 10 
AND Company = 'NVV' AND FiscalYear = 2017)

所以我将代码修改为如下所示，但它给了我2“当子查询未引入EXISTS时，只能在选择列表中指定一个表达式”错误：

SELECT (SELECT SUM(DebitAmount-CreditAmount) as BalanceAmtCYTD, 
segvalue1 FROM GLJrnDtl WITH (NOLOCK) WHERE FiscalPeriod 
between 1 AND 10 AND Company = 'NVV' AND FiscalYear = 2017 
GROUP BY segvalue1),

(SELECT SUM(DebitAmount-CreditAmount) as BalanceAmtCYM, 
segvalue1 FROM GLJrnDtl WITH (NOLOCK) WHERE FiscalPeriod = 10 
AND Company = 'NVV' AND FiscalYear = 2017 
GROUP BY segvalue1)

有谁知道如何修改代码以获得我想要的结果？再次，我只是想拉入segvalue1列。一旦我搞清楚了，我还会提供更多列。谢谢你的帮助！

Answer 1

考虑条件聚合：

SELECT segvalue1, 
       SUM(CASE WHEN FiscalPeriod BETWEEN 1 AND 10 
                THEN DebitAmount-CreditAmount 
                ELSE NULL 
           END) as BalanceAmtCYTD,
       SUM(CASE WHEN FiscalPeriod = 10 
                THEN DebitAmount-CreditAmount 
                ELSE NULL 
           END) as BalanceAmtCYM
FROM GLJrnDtl WITH (NOLOCK)
WHERE Company = 'NVV' AND FiscalYear = 2017             -- SHARED CONDITION
GROUP BY segvalue1

将列添加到多个SELECT SQL查询字符串

1 个答案: