June 2002
Intermediate to advanced
800 pages
16h 3m
English
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7.8. Indexes
The more records you want to store in a table, the longer it will take to find the appropriate values because the database has to check every record in the table at least once to generate the result. If you are working with millions of records, this will take far too long and the performance of your application will suffer if the number of records in the database increases.
Trees are a fundamental data structure and can be used to speed up the access to huge amounts of data. Indexes (non-American readers will spell the plural of the word index as indices, which is the correct Latin plural of the word) are based on trees, and in this section you will learn how to create and drop indexes. You will also have a brief look at PostgreSQL ...
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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.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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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.