BS ISO/IEC 19075-5:2021
Current
The latest, up-to-date edition.
Information technology. Guidance for the use of database language SQL Row pattern recognition
Hardcopy , PDF
English
10-09-2021
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.
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