April 2001
Beginner
792 pages
17h 51m
English
Content preview from Microsoft® SQL Server™ 2000 Programming by Example
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The CUBE and ROLLUP Operators
To facilitate the use of summary information in client applications, SQL Server 2000 provides the ROLLUP and CUBE operators.
As you can see in Listing 11.20, using ROLLUP you can get aggregations at different levels in a single result set. Remember that using COMPUTE, you obtain a reportlike result set (see Listing 11.19).
Code Listing 11.20. Use ROLLUP to Produce a Result Set with Aggregations at Different Levels
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SELECT CategoryName AS Category, ProductName AS Product, SUM((OD.UnitPrice * Quantity * (1-Discount))) AS Price, AVG(Discount) AS AvgDiscount FROM [Order Details] OD JOIN Orders O ON O.OrderID = OD.OrderID ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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