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  2. SQL syntax - Wikipedia

    en.wikipedia.org/wiki/SQL_syntax

    The SQL function EXTRACT can be used for extracting a single field (seconds, for instance) of a datetime or interval value. The current system date / time of the database server can be called by using functions like CURRENT_DATE , CURRENT_TIMESTAMP , LOCALTIME , or LOCALTIMESTAMP .

  3. System time - Wikipedia

    en.wikipedia.org/wiki/System_time

    SQL: CURDATE() or CURRENT DATE CURTIME() or CURRENT TIME GETDATE() or GETUTCDATE() NOW() or CURRENT TIMESTAMP SYSDATE() 3 ms 1 January 1753 to 31 December 9999 (*) 60 s

  4. Transact-SQL - Wikipedia

    en.wikipedia.org/wiki/Transact-SQL

    Transact-SQL (T-SQL) is Microsoft's and Sybase's proprietary extension to the SQL (Structured Query Language) used to interact with relational databases.T-SQL expands on the SQL standard to include procedural programming, local variables, various support functions for string processing, date processing, mathematics, etc. and changes to the DELETE and UPDATE statements.

  5. List of SQL reserved words - Wikipedia

    en.wikipedia.org/wiki/List_of_SQL_reserved_words

    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]

  6. History of Microsoft SQL Server - Wikipedia

    en.wikipedia.org/wiki/History_of_Microsoft_SQL...

    The official General Availability (GA) release date for SQL Server 2016 (13.0.1601.5) was June 1, 2016, with SQL Server 2016 being the first version to only support x64 processors [59] and the last to have the Service Packs updating mechanism. Service Pack 1 was released on November 16, 2016, Service Pack 2 (13.2.5026) was released on April 24 ...

  7. SQL - Wikipedia

    en.wikipedia.org/wiki/SQL

    SQL was initially developed at IBM by Donald D. Chamberlin and Raymond F. Boyce after learning about the relational model from Edgar F. Codd [12] in the early 1970s. [13] This version, initially called SEQUEL (Structured English Query Language), was designed to manipulate and retrieve data stored in IBM's original quasirelational database management system, System R, which a group at IBM San ...

  8. Microsoft SQL Server - Wikipedia

    en.wikipedia.org/wiki/Microsoft_SQL_Server

    Microsoft SQL Server (Structured Query Language) is a proprietary relational database management system developed by Microsoft.As a database server, it is a software product with the primary function of storing and retrieving data as requested by other software applications—which may run either on the same computer or on another computer across a network (including the Internet).

  9. Timestamp - Wikipedia

    en.wikipedia.org/wiki/Timestamp

    A distinction is sometimes made between the terms datestamp, timestamp and date-timestamp: Datestamp or DS : A date, for example 2025-02-4 according to ISO 8601 Timestamp or TS : A time of day, for example 15:12:28 using 24-hour clock