使用Group By获得Grand Totals

Question

我想详细了解SQL教我的那一刻,我目前试图进行一些简单的销售使用报告SUM,COUNT,AVG和GROUP BY一个SQL Server 2008数据库中的功能.我已经设法按行获得每组的总数,计数和平均值.

如何按行获取所有组的总计？

SQL到目前为止:

SELECT 
    SUM(dbo.tbl_orderitems.mon_orditems_pprice) AS prodTotal,
    AVG(dbo.tbl_orderitems.mon_orditems_pprice) AS avgPrice,
    count(dbo.tbl_orderitems.uid_orditems_prodid) AS prodQty,
    dbo.tbl_orderitems.txt_orditems_pname
FROM 
    dbo.tbl_orderitems
INNER JOIN 
    dbo.tbl_orders 
    ON (dbo.tbl_orderitems.uid_orditems_orderid = dbo.tbl_orders.uid_orders)
WHERE 
    dbo.tbl_orders.uid_order_webid = 
       <cfqueryparam cfsqltype="cf_sql_integer" value="#session.webid#">
    AND dbo.tbl_orders.txt_order_status = 
       <cfqueryparam cfsqltype="cf_sql_varchar" value="#arguments.sale_status#">
GROUP BY
    dbo.tbl_orderitems.txt_orditems_pname

Product                           Qty      Gross        Avg  

Westbury Climbing Frame           17       8,023.00     471.94
Sandpoint Deluxe Climbing Frame   34       36,146.00    1,063.12
Roseberry Climbing Frame          9        7,441.00     826.78
Ridgeview Texas Climbing Frame    10       6,990.00     699
Selwood Picnic Table              9        489.92       54.44

I need the Totals of qty column and gross column

非常感谢

贾森

Answer 1

您正在寻找ROLLUP运算符,它将在结果集的末尾添加一个总计行.如果要查找更复杂的聚合总计,请使用带有GROUP BY子句的ROLLUP或CUBE,例如@MartinSmith或Aggregation WITH ROLLUP提供的链接

SELECT 
    SUM(dbo.tbl_orderitems.mon_orditems_pprice) AS prodTotal,
    AVG(dbo.tbl_orderitems.mon_orditems_pprice) AS avgPrice,
    count(dbo.tbl_orderitems.uid_orditems_prodid) AS prodQty,
    dbo.tbl_orderitems.txt_orditems_pname
FROM 
    dbo.tbl_orderitems
INNER JOIN 
    dbo.tbl_orders ON (dbo.tbl_orderitems.uid_orditems_orderid = dbo.tbl_orders.uid_orders)
WHERE 
    dbo.tbl_orders.uid_order_webid = <cfqueryparam cfsqltype="cf_sql_integer" value="#session.webid#">
    AND dbo.tbl_orders.txt_order_status = <cfqueryparam cfsqltype="cf_sql_varchar" value="#arguments.sale_status#">
GROUP BY
    dbo.tbl_orderitems.txt_orditems_pname
WITH ROLLUP

Answer 2

我知道这是一个老问题，但是仅供以后参考-您还可以通过使用GROUPING SETS来更好地控制分组过程。例如：

SELECT 
    SUM(dbo.tbl_orderitems.mon_orditems_pprice) AS prodTotal,
    AVG(dbo.tbl_orderitems.mon_orditems_pprice) AS avgPrice,
    count(dbo.tbl_orderitems.uid_orditems_prodid) AS prodQty,
    COALESCE(dbo.tbl_orderitems.txt_orditems_pname, 'TOTAL')
FROM 
    dbo.tbl_orderitems
INNER JOIN 
    dbo.tbl_orders 
    ON (dbo.tbl_orderitems.uid_orditems_orderid = dbo.tbl_orders.uid_orders)
WHERE 
    dbo.tbl_orders.uid_order_webid = 
       <cfqueryparam cfsqltype="cf_sql_integer" value="#session.webid#">
    AND dbo.tbl_orders.txt_order_status = 
       <cfqueryparam cfsqltype="cf_sql_varchar" value="#arguments.sale_status#">
GROUP BY GROUPING SETS (
    (dbo.tbl_orderitems.txt_orditems_pname),
    ()
)

这样，结果将具有按txt_orditems_pname分组的两行，并且根本没有分组。您可以指定更多分组集，即。查询部门和团队的平均薪水，部门和整个公司的总计也返回。