Résumé
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.
Informations générales
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État actuel: PubliéeDate de publication: 2021-08Stade: Norme internationale publiée [60.60]
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Edition: 1
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Comité technique :ISO/IEC JTC 1/SC 32ICS :35.060
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Cycle de vie
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Précédemment
AnnuléeISO/IEC TR 19075-5:2016
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Actuellement