我不能调用sql函数

我写了这个函数

ALTER FUNCTION dbo.MEDIAVTRINEW
    (@CODIGO VARCHAR(25), 
     @YEAR VARCHAR(4),    
     @TRI INT)
RETURNS TABLE   
    RETURN  (SELECT ROUND(ISNULL(SUM(D2.D2_QUANT) / 3, 0), 2) AS MEDIA
    FROM SD2010 D2  
    WHERE D2.D_E_L_E_T_ = ''        
      AND D2.D2_TES IN ('502', '506', '505')
      AND D2.D2_COD = @CODIGO  
      AND ((@TRI = 1 
            AND D2.D2_EMISSAO >= CONCAT(@YEAR, '01', '01')
            AND D2.D2_EMISSAO <= CONCAT(@YEAR, '03', '31')
           )
           OR
           (@TRI = 2 
            AND D2.D2_EMISSAO >= CONCAT(@YEAR, '04', '01')
            AND D2.D2_EMISSAO <= CONCAT(@YEAR, '06', '31')
           )
           OR
           (@TRI = 3 
            AND D2.D2_EMISSAO >= CONCAT(@YEAR, '07', '01')
            AND D2.D2_EMISSAO <= CONCAT(@YEAR, '09', '31')
           )
           OR
           (@TRI = 4 
            AND D2.D2_EMISSAO >= CONCAT(@YEAR, '10', '01')
            AND D2.D2_EMISSAO <= CONCAT(@YEAR, '12', '31')
           )
          )
     )
GO

Select * from dbo.MEDIAVTRINEW('001004','20171201',4)

---

PS：我单独执行了这个函数，抛出了参数，它成功了。

您需要使用

FROM

子句来调用表值函数。您的语法适用于标量函数

ALTER FUNCTION dbo.MEDIAVTRINEW
    (@CODIGO VARCHAR(25), 
     @YEAR VARCHAR(4),    
     @TRI INT)
RETURNS TABLE   
    RETURN  (SELECT ROUND(ISNULL(SUM(D2.D2_QUANT) / 3, 0), 2) AS MEDIA
    FROM SD2010 D2  
    WHERE D2.D_E_L_E_T_ = ''        
      AND D2.D2_TES IN ('502', '506', '505')
      AND D2.D2_COD = @CODIGO  
      AND ((@TRI = 1 
            AND D2.D2_EMISSAO >= CONCAT(@YEAR, '01', '01')
            AND D2.D2_EMISSAO <= CONCAT(@YEAR, '03', '31')
           )
           OR
           (@TRI = 2 
            AND D2.D2_EMISSAO >= CONCAT(@YEAR, '04', '01')
            AND D2.D2_EMISSAO <= CONCAT(@YEAR, '06', '31')
           )
           OR
           (@TRI = 3 
            AND D2.D2_EMISSAO >= CONCAT(@YEAR, '07', '01')
            AND D2.D2_EMISSAO <= CONCAT(@YEAR, '09', '31')
           )
           OR
           (@TRI = 4 
            AND D2.D2_EMISSAO >= CONCAT(@YEAR, '10', '01')
            AND D2.D2_EMISSAO <= CONCAT(@YEAR, '12', '31')
           )
          )
     )
GO

Select * from dbo.MEDIAVTRINEW('001004','20171201',4)

---

作为一个表值函数，我怀疑您需要一个交叉应用或外部应用

示例

Select A.*
      ,B.*
 From  YourTable A
 Cross Apply dbo.MEDIAVTRINEW('001004','20171201',4) B

使用外部应用查看空值

---

用字段值替换参数

是否使用ms sql server？由于函数返回一个表，因此应在

FROM

子句中调用它<代码>从dbo.MEDIAVTRINEW（'001004'，'20171201'，4）中选择*既没有6月31日（06）也没有9月31日（09）-您应该修复这些错误