About This Book
Everything you read in this book is based on the current International Organization for Standardization (ISO) Standard for the SQL database language (document ISO/IEC 9075-2:2003), as currently implemented in most of the popular commercial database systems. The ISO document was also adopted by the American National Standards Institute (ANSI), so this is truly an international standard. The SQL you’ll learn here is not specific to any particular software product.
As you’ll learn in more detail in Chapter 3, A Concise History of SQL, the SQL Standard defines both more and less than you’ll find implemented in most commercial database products. Most database vendors have yet to implement many of the more advanced features, but most ...
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