将 Rollup 与 SQL 一起使用会产生双重结果

Question

我是运行一个查询，试图按星期几和总数获取一些指标。我正在使用 ROLLUP 来获得一周的总平均值。但是，当我这样做时，我发现结果翻了一番。数字相同，我验证它们是正确的。但是，我想让它只在周日至周六生产，总计如下所示。有没有办法重写这个查询来做到这一点？

select DATEPART(dw,t1.Call), DATENAME(dw,t1.Call),
AVG (T1.CallSec + T1.ACWSec) AS AHT
from bm.calls t1 with (nolock)
JOIN prc.RRequest rreq
on t1.callid = rreq.t1CallID
join PRC.RRaw rraw with (nolock) 
on rreq.RoutingID = rraw.RoutingId
where t1.CallDate >= '2014-01-01'
AND rraw.RMode='Active'
GROUP BY  ROLLUP (DATEPART(dw,t1.Call)),(DATENAME(dw,t1.Call) )

这是我得到的输出

NULL    Monday  367.70605696962
NULL    Sunday  335.661825117371
NULL    Tuesday 359.261558682542
NULL    NULL    353.421450966283
NULL    Friday  361.478009630819
NULL    Saturday    354.216226822329
NULL    Thursday    330.073051380636
NULL    Wednesday   345.357746478873
1       Sunday      335.661825117371
2       Monday      367.70605696962
3       Tuesday     359.261558682542
4       Wednesday   345.357746478873
5       Thursday    330.073051380636
6       Friday      361.478009630819
7       Saturday    354.216226822329

期望的输出应该是

1       Sunday      335.661825117371
2       Monday      367.70605696962
3       Tuesday     359.261558682542
4       Wednesday   345.357746478873
5       Thursday    330.073051380636
6       Friday      361.478009630819
7       Saturday    354.216226822329
NULL    NULL        353.421450966283

Answer 1

我相信您只需要更改 ROLLUP 以包含两个字段：

SELECT  DATEPART(dw, t1.Call)
      , DATENAME(dw, t1.Call)
      , AVG(T1.CallSec + T1.ACWSec) AS AHT
FROM    bm.calls t1 WITH ( NOLOCK )
        JOIN prc.RRequest rreq ON t1.callid = rreq.t1CallID
        JOIN PRC.RRaw rraw WITH ( NOLOCK ) ON rreq.RoutingID = rraw.RoutingId
WHERE   t1.CallDate >= '2014-01-01'
        AND rraw.RMode = 'Active'
GROUP BY ROLLUP((DATEPART(dw, t1.Call), DATENAME(dw, t1.Call)))

ROLLUP() 将根据包含的字段集添加 subtotal/total 行，您可以通过将多个字段括在括号中将它们合并为一个集合。

因此 ROLLUP(col1,col2) 将导致 col2 中的每个变化的小计以及总计。而 ROLLUP((col1,col2)) 会将两列合并为一组，因此仅显示总计。

将 Rollup 与 SQL 一起使用会产生双重结果

Using Rollup with SQL produces double results

sql

sql-server

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