Grouping Data With ROLLUP

Steve Jones shows how easy it is to use the ROLLUP function:

I was editing an article recently that talked about ROLLUP, and I wanted to play with this a bit more. I hadn’t used this much in my career, but it’s a handy operator that’s worth including in your toolkit.

ROLLUP is used to provide additional totals for your aggregates while using GROUP BY. Here’s a little example. I’ve got some data for American Football quaterbacks. In this case, I’ve extracted some stats for a few noteworthy players today.

I’ll probably end up using ROLLUP about once every three months and be very pleased when I remember that it exists.  I use GROUPING SETS more often and almost never use CUBE.

Related Posts

Using The GROUPING SETS Operator

Alfonso Hernandez goes into detail with what you can do with GROUPING SETS: In T-SQL, you summarize data by using the GROUP BY clause within an aggregate query. This clause creates groupings which are defined by a set of expressions. One row per unique combination of the expressions in the GROUP BY clause is returned, and aggregate functions such […]

Read More

Searching Stored Procedures And Ad Hoc Queries

Bert Wagner has a couple queries to help you find references in T-SQL objects, as well as ad hoc statements which are currently in the plan cache: Have you ever wanted to find something that was referenced in the body of a SQL query? Maybe you need to know what queries you will have to […]

Read More

Leave a Reply

Your email address will not be published. Required fields are marked *

Categories

November 2017
MTWTFSS
« Oct  
 12345
6789101112
13141516171819
20212223242526
27282930