Description
SQL is a computer language designed to manipulate relational databases. This introduction defines syntax, explains how SQL works, and covers proper structure of queries, how to produce a desired result and minimize burden on command processors, and how to modify data and database structure for ease of use and increased efficiency. The sample database used for examples is available on the author's web site. Annotation c. by Book News, Inc., Portland, Or.
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Written with both beginner and intermediate database developers in mind, this clear, concise guide teaches readers about the relationships between the distribution of data in a database and the way in which queries of various types are processed. SQL (structured query language) is a complete data manipulation language for relational databases that allows users to modify database structure (tables, views, and indexes), as well as modify and retrieve data. The book teaches not only SQL syntax but also explains the proper structure of SQL queries and how a query affects the SQL processor and system performance.
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