求和一组SUMS

Question

我在我的代码中创建已经包含SUMS的两行总和时遇到了麻烦。 我最终遇到一个错误。 有人可以帮助我提供代码吗？ 我想要的计算是SUM（yr_L / yr_CC）。 我意识到我不能使用别名来进行计算，但是我似乎无法使它正常工作。

下面的工作原理，没有复杂的SUM计算行...

SELECT
IF (Artist LIKE '%Bethel%' , 'Bethel', NULL ) as Artist,
COUNT(IF(CCD > 0,1,NULL)) as "c_CC",
ROUND(SUM(CC28) / COUNT(IF(CCD > 0,1,NULL)) * 13,0) as yr_CC,
COUNT(IF(LD > 0,1,NULL)) as c_L,
ROUND(SUM(L28) / COUNT(IF(LD > 0,1,NULL)) * 13,0) as yr_L,
COUNT(IF(FD > 0,1,NULL)) as c_F,
ROUND(SUM(F28) / COUNT(IF(FD > 0,1,NULL)) * 13,0) as yr_F,
COUNT(IF(MTD > 0,1,NULL)) as c_MT,
ROUND(SUM(MT28) / COUNT(IF(MTD > 0,1,NULL)) * 13,0) as yr_MT,
ROUND(SUM(CC28) / COUNT(IF(CCD > 0,1,NULL)) * 13,0) +
    ROUND(SUM(L28) / COUNT(IF(LD > 0,1,NULL)) * 13,0) +
    ROUND(SUM(MT28) / COUNT(IF(MTD > 0,1,NULL)) * 13,0) +
    ROUND(SUM(CC28) / COUNT(IF(CCD > 0,1,NULL)) * 13,0)
    AS yr_Total
FROM praisecharts_reporting.large_sales_report
GROUP BY 1

这是我创建错误的方法（添加的方程式周围有空格）：

SELECT
IF (Artist LIKE '%Bethel%' , 'Bethel', NULL ) as Artist,
COUNT(IF(CCD > 0,1,NULL)) as "c_CC",
ROUND(SUM(CC28) / COUNT(IF(CCD > 0,1,NULL)) * 13,0) as yr_CC,
COUNT(IF(LD > 0,1,NULL)) as c_L,
ROUND(SUM(L28) / COUNT(IF(LD > 0,1,NULL)) * 13,0) as yr_L,

SUM (
        (
            SUM(L28) / COUNT(IF(LD > 0,1,NULL)) -- yr_L
        ) / 
        (
            SUM(CC28) / COUNT(IF(CCD > 0,1,NULL)) -- yr_CC
        )
    )
    AS r_L_C,

COUNT(IF(FD > 0,1,NULL)) as c_F,
ROUND(SUM(F28) / COUNT(IF(FD > 0,1,NULL)) * 13,0) as yr_F,
COUNT(IF(MTD > 0,1,NULL)) as c_MT,
ROUND(SUM(MT28) / COUNT(IF(MTD > 0,1,NULL)) * 13,0) as yr_MT,
ROUND(SUM(CC28) / COUNT(IF(CCD > 0,1,NULL)) * 13,0) +
    ROUND(SUM(L28) / COUNT(IF(LD > 0,1,NULL)) * 13,0) +
    ROUND(SUM(MT28) / COUNT(IF(MTD > 0,1,NULL)) * 13,0) +
    ROUND(SUM(CC28) / COUNT(IF(CCD > 0,1,NULL)) * 13,0)
    AS yr_Total
FROM praisecharts_reporting.large_sales_report
GROUP BY 1

Answer 1

在这里最简单的操作可能是重复两个和以得到商：

SELECT
    IF (Artist LIKE '%Bethel%' , 'Bethel', NULL) AS Artist,
    COUNT(IF(CCD > 0,1,NULL)) AS "c_CC",
    ROUND(SUM(CC28) / COUNT(IF(CCD > 0,1,NULL)) * 13, 0) AS yr_CC,
    COUNT(IF(LD > 0,1,NULL)) as c_L,
    ROUND(SUM(L28) / COUNT(IF(LD > 0,1,NULL)) * 13,0) as yr_L,
    COUNT(IF(FD > 0,1,NULL)) as c_F,
    ROUND(SUM(F28) / COUNT(IF(FD > 0,1,NULL)) * 13,0) as yr_F,
    COUNT(IF(MTD > 0,1,NULL)) as c_MT,
    ROUND(SUM(MT28) / COUNT(IF(MTD > 0,1,NULL)) * 13,0) as yr_MT,
    ROUND(SUM(CC28) / COUNT(IF(CCD > 0,1,NULL)) * 13,0) +
        ROUND(SUM(L28) / COUNT(IF(LD > 0,1,NULL)) * 13,0) +
        ROUND(SUM(MT28) / COUNT(IF(MTD > 0,1,NULL)) * 13,0) +
        ROUND(SUM(CC28) / COUNT(IF(CCD > 0,1,NULL)) * 13,0) AS yr_Total,
    -- new code here:
    ROUND( (SUM(L28) / COUNT(IF(LD > 0,1,NULL))) /
           (SUM(CC28) / COUNT(IF(CCD > 0,1,NULL))), 0) AS new_column
FROM praisecharts_reporting.large_sales_report
GROUP BY 1;