SQL All-in-One For Dummies

SQL All-in-One For Dummies

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The supertype and subtype entities in the ER model correspond to supertables and subtables in a relational database. ... The Web site front end consists of pages that include descriptions and pictures of the products, a shopping cart, and a form for capturing ... Figure 2-14 shows an ER diagram of the Gentoo Joyce system.

Title:SQL All-in-One For Dummies
Author:Allen G. Taylor
Publisher:John Wiley & Sons - 2011-03-10


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