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Hlavní stránka>BS ISO/IEC 19075-5:2021 Information technology. Guidance for the use of database language SQL Row pattern recognition
sklademVydáno: 2021-09-10
BS ISO/IEC 19075-5:2021 Information technology. Guidance for the use of database language SQL Row pattern recognition

BS ISO/IEC 19075-5:2021

Information technology. Guidance for the use of database language SQL Row pattern recognition

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Označení normy:BS ISO/IEC 19075-5:2021
Počet stran:88
Vydáno:2021-09-10
ISBN:978 0 539 13082 9
Status:Standard
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BS ISO/IEC 19075-5:2021


This standard BS ISO/IEC 19075-5:2021 Information technology. Guidance for the use of database language SQL is classified in these ICS categories:
  • 35.060 Languages used in information technology

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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