Information technology — Guidance for the use of database language SQL — Part 2: Time-related information (Adopted ISO/IEC 19075-2:2021, first edition, 2021-08)
Standards development within the Information Technology sector is harmonized with international standards development. Through the CSA Technical Committee on Information Technology (TCIT), Canadians serve as the SCC Mirror Committee (SMC) on ISO/IEC Joint Technical Committee 1 on Information Technology (ISO/IEC JTC1) for the Standards Council of Canada (SCC), the ISO member body for Canada and sponsor of the Canadian National Committee of the IEC.
For brevity, this Standard will be referred to as CSA ISO/IEC 19075-2 throughout.
The International Standard was reviewed by the CSA TCIT under the jurisdiction of the CSA Strategic Steering Committee on Information and Communications Technology and deemed acceptable for use in Canada. This Standard has been formally approved, without modification, by the Technical Committee and has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group.
This document describes the support in SQL for time-related information.
This document discusses the following features of the SQL language:
— Time-related data types
— Operations on time-related data
— Time-related Predicates
— Application-time period tables
— System-versioned tables
— Bi-temporal tables