SQL is full of difficulties and traps for the unwary. You can avoid them if you understand relational theory, but only if you know how to put the theory into pr
All of today’s mainstream database products support the SQL language, and relational theory is what SQL is supposed to be based on. But are those products tru
Time and Relational Theory provides an in-depth description of temporal database systems, which provide special facilities for storing, querying, and updating h
Because databases often stay in production for decades, careful design is critical to making the database serve the needs of your users over years, and to avoid
Pascal educates PC users on the true meaning and usefulness of relational database management. Topics include a thorough explanation of the relational model, a