Bibliography

PostgreSQL tutorial and user guide.

Local information about postsgresl and other databases .

The Practical SQL Handbook , Bowman et al, 1993 , Using Structured Query Language , 3, Judith Bowman, Sandra Emerson, and Marcy Damovsky, 0-201-44787-8, 1996, Addison-Wesley, 1997.

A Guide to the SQL Standard , Date and Darwen, 1997 , A user's guide to the standard database language SQL , 4, C. J. Date and Hugh Darwen, 0-201-96426-0, 1997, Addison-Wesley, 1997.

An Introduction to Database Systems , Date, 1994 , 6, C. J. Date, 1, 1994, Addison-Wesley, 1994.

Understanding the New SQL , Melton and Simon, 1993 , A complete guide, Jim Melton and Alan R. Simon, 1-55860-245-3, 1993, Morgan Kaufmann, 1993.