Blogs from Wise Owl on Grouping in SQL

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Use the GROUP BY clause in SQL for statistics

Posted by Andy Brown on 14 December 2012

If you want to average, count, sum or perform any other statistic on values in SQL, you need to learn the GROUP BY and HAVING parts of a SQL statement. That's where this online tutorial comes in!

Tags:   SQL | Grouping    |    T-SQL | SQL Tutorial

Free SQL training

Posted by Andrew Gould on 13 February 2012

This article provides a comprehensive tutorial in Microsoft SQL Server, taking you from the basics of writing SELECT statements all the way through to creating complex stored procedures.

Tags:   SQL | Selecting data    |    SQL | WHERE criteria    |    SQL | Calculations    |    SQL | Joins    |    SQL | Grouping    |    SQL | Stored procedures    |    SQL | Transactions    |    SQL | CTEs, subqueries    |    T-SQL | SQL Tutorial
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