ISO/IEC 19075-5-ed.1.0

Podrobné informace

Označení: ISO/IEC 19075-5-ed.1.0

Datum vydání: 01.09.2021

Stran: 74

Země: Mezinárodní technická norma

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Anotace

This document discusses the syntax and semantics for recognizing patterns in rows of a table, as defined in ISO/IEC 9075-2, commonly called “SQL/RPR”.SQL/RPR defines two features regarding row pattern recognition:— Feature R010, “Row pattern recognition: FROM clause”— Feature R020, “Row pattern recognition: WINDOW clause”These two features have considerable syntax and semantics in common, the principle difference being whether the syntax is placed in the FROM clause or in the WINDOW clause.