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Sams Teach Yourself SQL in 24 Hours, Fifth Edition by Arie D. Jones, Ron D. Plew, Ryan Stephens

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Hour 24. Extensions to Standard SQL

What You’ll Learn in This Hour:

Various implementations

Differences between implementations

Compliance with ANSI SQL

Interactive SQL statements

Using variables

Using parameters

This hour covers extensions to American National Standards Institute (ANSI)-standard SQL. Although most implementations conform to the standard, many vendors have provided extensions to standard SQL through various enhancements.

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 MySQL, Microsoft SQL Server, and Oracle. ...

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