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Sams Teach Yourself SQL by Arie D. Jones, Ron Plew, Ryan Stephens

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Chapter 24. Extensions to Standard SQL

This hour covers extensions to ANSI-standard SQL. Although most implementations conform to the standard, many vendors have provided extensions to standard SQL through various enhancements.

The highlights of this hour include:

  • Various implementations

  • Differences between implementations

  • Compliance with ANSI SQL

  • Interactive SQL statements

  • Using variables

  • Using parameters

Various Implementations

Numerous SQL implementations are released by various vendors. All the relational database vendors could not possibly be mentioned; a few of the leading implementations, however, are discussed. The implementations discussed here are Sybase, dBase, Microsoft SQL Server, and Oracle. Other popular vendors providing database products ...

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