April 2007
Intermediate to advanced
1032 pages
19h 28m
English
book
SQL for MySQL Developers: A Comprehensive Tutorial and Reference
by Rick F. van der Lans, Diane Cools
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Chapter 25. Using Indexes
25.1 Introduction
Some SQL statements, such as the CREATE TABLE and GRANT statements, have a reasonably constant execution time. It does not matter under which circumstances such statements are executed; they always need a certain execution time, and it cannot be reduced. However, this is not the case for all statements. The time required to process SELECT, UPDATE, and DELETE statements varies. One SELECT statement might be processed in two seconds, and another could take minutes. You can influence the required execution time for this type of statement.
Many techniques exist for reducing the execution time of SELECT, UPDATE, and DELETE statements, ranging from reformulating statements to purchasing faster computers. ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.