A Primer on SQL by Rahul Batra
A Primer on SQL
by Rahul Batra
Publisher: dreamincode.net 2012
Number of pages: 42
Description:
A free ebook teaching the basics of SQL assuming no prior knowledge of it. While the examples and text use Ingres as the database management system, the code should work correctly on any SQL compliant database. Covers topics ranging from creating your database to understanding joins.
Download or read it online here:
Download link
(100KB, PDF)
Contents
1) An Introduction to SQL
2) Getting your Database ready
3) Constraints
4) Operations on Tables
5) Writing Basic Queries
6) Manipulating Data
7) Organizing your Data
8) Doing more with Queries
9) Aggregation and Grouping
10) Understanding Joins
The PDF book is free to read and distribute.