For implementation of database systems, Gray and Reuter's Transaction Processing: Concepts and Techniques http://www.amazon.com/Transaction-Processing-Concepts-

For implementation of database systems, Gray and Reuter's Transaction Processing: Concepts and Techniques http://www.amazon.com/Transaction-Processing-Concepts-Techniques-Management/dp/1558601902 http://www.amazon.com/Transaction-Processing-Concepts-Techni.... For the ideas behind relational databases, I like C.J. Date's Introduction to Database Systems, http://www.amazon.com/Introduction-Database-Systems-C-Date/dp/0201385902 http://www.amazon.com/Introduction-Database-Systems-C-Date/d....