The book contains both basic and advanced material, which might not be covered in
a single semester. We have marked several sections as advanced, using the symbol
“ ∗∗ ” . These sections may be omitted if so desired, without a loss of continuity.
It is possible to design courses by using various subsets of the chapters. We outline
some of the possibilities here:
• Chapter 5 can be omitted if students will not be using QBEor Datalog as part
of the course.
• If object orientation is to be covered in a separate advanced course, Chapters
8 and 9, and Section 11.9, can be omitted. Alternatively, they could constitute
the foundation of an advanced course in object databases.
• Chapter 10 (XML) and Chapter 14 (query optimization) can be omitted from
an introductory course.
• Both our coverage of transaction processing (Chapters 15 through 17) and our
coverage of database-system architecture (Chapters 18 through 20) consist of
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