SQL :-
SQL :-
Information Modeling (D. Edmond) [Link]
Structured Query Language (SQL) : A Practical Introduction. (by Akeel I. Din) [Link]
A Gentle Introduction to SQL [Link]
Teach Yourself SQL in 21 Days, 2nd Edition [Link]
SQL Tutorial [Link]
Comparison of different SQL implementations (T. Arvin) [Link]
Learning SQL Using phpMyAdmin (Marc Delisle) [Link]
SQL Performance Tuning [Link]
Introduction to SQL, Version 4.76 (J. Hoffman) [Link]
Hierarchical SQL (Joe Celko) [Link]
SQL Guide and Reference [Link]
Comparison of Different SQL Implementations [Link]