SQL Language Reference & Tutorials
- SQL Introduction (W3Schools.com)
- Compact introduction, with examples, of the SQL relational database language, basic database modeling, and querying techniques. Another fine product of the W3Schools.
- Interactive SQL Tutorial (SQLCourse.com)
- An effective, hypermedia-based SQL training program from Jupitermedia Corporation, the folks who own and publish the internet.com portfolio of web sites for Internet and Information Technology professionals. The interactive component consists of an entry form to test SQL commands. This tutorial offers plenty of examples, with practice exercises and solutions.
- Teach Yourself SQL in 21 Days
- A hypertext version of Teach Yourself SQL in 21 Days, Que, 1999, 2nd Edition. An easy-to-follow, online textbook filled with numerous examples.
- SQL Help - a Tutorial to SQL
- Well-intentioned reference for SQL syntax, commands, and functions. Assembled by André Müller, the organization may be a bit difficult to follow. Regardless, the hyperlinkd list of SQL keywords and overview of SQL Commands is quite useful. Watch out for the occasional German word or spelling...
Relational Database Design & SQL
All files are in PDF format
(more technical)