Question

我是SQL的新手，我正在编写一个脚本来提取在2015年9月30日之前发生的事务。我收到了一条错误消息 - 关键字＆＃39; WHERE＆＃39;。

附近的语法不正确

我做错了什么？

    SELECT
     T1.Account,
T2.AcctName,
     SUM(T1.Debit - T1.Credit)  AS 'Balance',
     Sum(T1.SysDeb - T1.SysCred) AS 'USDBalance'
FROM OJDT T0 
INNER JOIN JDT1 T1 ON T0.TransId = T1.TransId
Left Join OACT T2 ON T2.AcctCode = T1.Account
GROUP BY 
T1.Account, T2.AcctName WHERE T1.Refdate <= '09-30-2015'

Answer 1

WHERE位于GROUP BY：

之前

Select      T1.Account,
            T2.AcctName,
            Sum(T1.Debit - T1.Credit)   As 'Balance',
            Sum(T1.SysDeb - T1.SysCred) As 'USDBalance'
From        OJDT    T0 
Inner Join  JDT1    T1  ON  T0.TransId = T1.TransId
Left Join   OACT    T2  ON  T2.AcctCode = T1.Account
Where       T1.Refdate <= '09-30-2015'
Group By    T1.Account, T2.AcctName

Answer 2

您可以使用CROSS APPLY来简化GROUP BY的一些复杂性。在下面，此代码执行并返回与上述答案相同的结果。

SELECT
     balances.Account,
     balances.AcctName,
     balances.Balance  AS 'Balance',
     balances.USDBalance AS 'USDBalance'
FROM OJDT T0 
CROSS APPLY (
    SELECT 
        SUM(T1.Debit - T1.Credit)  AS Balance,
        Sum(T1.SysDeb - T1.SysCred) AS USDBalance,
        T1.Account AS Account,
        T2.AcctName AS AcctName
    FROM JDT1 T1
    LEFT OUTER JOIN OACT T2 ON T2.AcctCode = T1.Account
    WHERE T1.TransId = T0.TransId AND T1.Refdate <= '09-30-2015'
) balances

SQL where子句中的语法错误

2 个答案: