SQL For Dummies by Allen G. Taylor
For Dummies; 5 edition | August 8, 2003 | English | ISBN: 0764540750 | 435 pages | PDF | 5 MB
Many database management system (DBMS) tools run on a variety of hardware platforms. The differences among the tools can be many, but all serious products have one thing in common: They support data access and manipulation in SQL, the industry-standard language specifically designed to enable people to create and manage databases. If you know SQL, you can build relational databases and get useful information out of them.