How to create fast database queries

Archive for November 30th, 2009

SQL Server: Selecting records holding group-wise maximum

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Continuing the series on selecting records holding group-wise maximums:

How do I select the whole records, grouped on grouper and holding a group-wise maximum (or minimum) on other column?

In this article, I'll consider SQL Server.

SQL Server has very rich SQL syntax and its optimizer is really powerful.

However, some tricks are still required to make the queries like this to run faster.

Let's create a sample table:
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Written by Quassnoi

November 30th, 2009 at 11:00 pm

Posted in SQL Server