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TIME WITH TIME ZONE: the same as TIME, but including details about the time zone in question. TIMESTAMP : This is a DATE and a TIME put together in one variable (e.g. 2011-05-03 15:51:36.123456 ). TIMESTAMP WITH TIME ZONE : the same as TIMESTAMP , but including details about the time zone in question.
(get-universal-time) [44] 1 s 1 January 1900 Smalltalk: Time microsecondClock (VisualWorks) 1 s (ANSI) 1 μs (VisualWorks) 1 s (Squeak) 1 January 1901 (*) Time totalSeconds (Squeak) SystemClock ticksNowSinceSystemClockEpoch (Chronos) SQL: CURDATE() or CURRENT DATE CURTIME() or CURRENT TIME GETDATE() or GETUTCDATE() NOW() or CURRENT TIMESTAMP ...
Reserved words in SQL and related products In SQL:2023 [3] In IBM Db2 13 [4] In Mimer SQL 11.0 [5] In MySQL 8.0 [6] In Oracle Database 23c [7] In PostgreSQL 16 [1] In Microsoft SQL Server 2022 [2]
Popular implementations of SQL commonly omit support for basic features of Standard SQL, such as the DATE or TIME data types. The most obvious such examples, and incidentally the most popular commercial and proprietary SQL DBMSs, are Oracle (whose DATE behaves as DATETIME , [ 24 ] [ 25 ] and lacks a TIME type) [ 26 ] and MS SQL Server (before ...
Time period definitions use two standard table columns as the start and end of a named time period, with closed set-open set semantics. This provides compatibility with existing data models, application code, and tools
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ISO 8601 is an international standard covering the worldwide exchange and communication of date and time-related data.It is maintained by the International Organization for Standardization (ISO) and was first published in 1988, with updates in 1991, 2000, 2004, and 2019, and an amendment in 2022. [1]