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ANSI INCITS 500

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ANSI INCITS 500 2012 Edition, October 16, 2012 Information Technology – Database Language SQL – Row Pattern Recognition (SQL/RPR)

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Description / Abstract: INCITS 500-2012 specifies the syntax and semantics of database language facilities that support row pattern matching using regular expressions.

The database language facilities that support row pattern recognition include:

- A subset of regular expression syntax.

- Row pattern variables that span subsequences of rows, defined using conditions on individual rows and on aggregates of rows.

- A major new syntax element, the MATCH_RECOGNIZE clause, that can be applied to table expressions and can be used in definitions of windows.