The sample database, pubs2, contains these tables: publishers, authors, titles, titleauthor, roysched, sales, salesdetail, stores, discounts, au_pix, and blurbs. The pubs3 sample database adds store_employees but does not include au_pix. pubs3 is an updated version of pubs2 and can be used for referential integrity examples. Its tables differ slightly from the tables defined in pubs2.
Here is a brief description of each table:
publishers contains the identification numbers, names, cities, and states of three publishing companies.
authors contains an identification number, first and last name, address information, and contract status for each author.
titles contains the book ID, name, type, publisher ID, price, advance, royalty, year-to-date sales, comments, and publication date for each book.
titleauthor links the titles and authors tables together. It contains each book’s title ID, author ID, author order, and the royalty split among the authors of a book.
roysched lists the unit sales ranges and the royalty connected with each range. The royalty is some percentage of the net receipts from sales.
sales records the store ID, order number, and date of book sales. It acts as the master table for the detail rows in salesdetail.
salesdetail records the bookstore sales of titles in the titles table.
stores lists bookstores by store ID.
store_employees lists employees for the stores described in the stores table.
discounts lists three types of discounts for bookstores.
au_pix contains pictures of the authors in binary form using the image datatype. au_pix is in pubs2 only.
blurbs contains long book descriptions using the text datatype.
The pubs2 database is illustrated in Appendix A, “The pubs2 Database,” while pubs3 is illustrated in Appendix B, “The pubs3 Database.”
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