Английская Википедия:ISO/IEC 9075

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ISO/IEC 9075 "Information technology - Database languages - SQL" is an international standard for Structured Query Language, and is considered as specifying the minimum for what a database engine should fulfill in terms of SQL syntax, which is called Core SQL. The standard also defines a number of optional features.

History

The first edition was based on ANSI SQL.[1]

Editions

New editions of the ISO standard are published regularly.

Chronological overview of the editions (which have the year of publication in their name):

  • SQL-86, ANSI X3.135:1986[1]
  • SQL-87, ISO 9075:1987, based on the ANSI standard[1]
  • SQL-89, ISO/IEC 9075:1989
  • SQL-92, ISO/IEC 9075:1992 - 3rd edition
  • SQL:1999, ISO/IEC 9075:1999 - 4th edition
  • SQL:2003, ISO/IEC 9075:2003 - 5th edition
  • SQL:2006, ISO/IEC 9075:2006 - (part 14 revision)
  • SQL:2008, ISO/IEC 9075:2008 - 6th edition
  • SQL:2011, ISO/IEC 9075:2011 - 7th edition
  • SQL:2016, ISO/IEC 9075:2016 - 8th edition
  • SQL:2023, ISO/IEC 9075:2023 - 9th edition

References

Шаблон:Reflist

External links

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  1. ↑ 1,0 1,1 1,2 Шаблон:Cite web
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