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    https://en.wikipedia.org/wiki/SQL

    SQL - Wikipedia

    • Structured Query Language (SQL) (pronounced S-Q-L; historically "sequel") is a domain-specific language used to manage data, especially in a relational database management system (RDBMS). It is particularly useful in handling structured data, i.e., data incorporating relations among entities and variables. Introduced in the 1970s, SQL offered two main a… See more

    History

    SQL was initially developed at IBM by Donald D. Chamberlin and Raymond F. Boyce after learning about the relational model from Edgar F. Codd in the early 1970s. This version, initially called SEQUEL (Structured English Qu… See more

    Syntax

    The SQL language is subdivided into several language elements, including:
    • Clauses, which are constituent components of statements and queries. (In some cases, these are optional.)
    • Expression… See more

    Procedural extensions

    SQL is designed for a specific purpose: to query data contained in a relational database. SQL is a set-based, declarative programming language, not an imperative programming language like C or BASIC. However, e… See more

    Interoperability and standardization

    SQL implementations are incompatible between vendors and do not necessarily completely follow standards. In particular, date and time syntax, string concatenation, NULLs, and comparison case sensitivity vary from v… See more

    Alternatives

    A distinction should be made between alternatives to SQL as a language, and alternatives to the relational model itself. Below are proposed relational alternatives to the SQL language. See navigational database… See more

    Distributed SQL processing

    Distributed Relational Database Architecture (DRDA) was designed by a workgroup within IBM from 1988 to 1994. DRDA enables network-connected relational databases to cooperate to fulfill SQL reque… See more

    Criticisms

    SQL deviates in several ways from its theoretical foundation, the relational model and its tuple calculus. In that model, a table is a set of tuples, while in SQL, tables and query results are lists of rows; the same row may occur … See more

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    WEBLearn about the history, editions, features and applications of Microsoft SQL Server, a proprietary relational database management system developed by Microsoft. Compare SQL Server with other database products and …

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    https://en.wikipedia.org/wiki/MySQL

    MySQL - Wikipedia

    WEBMySQL is a relational database management system that uses SQL, the standard language for data manipulation. It is free and open-source …

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    • People also ask
      Is SQL a programming language?
      SQL is designed for a specific purpose: to query data contained in a relational database. SQL is a set -based, declarative programming language, not an imperative programming language like C or BASIC. However, extensions to Standard SQL add procedural programming language functionality, such as control-of-flow constructs.

      SQL - Wikipedia

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      When was SQL first used?
      SQL was one of the first commercial database languages since 1970. Since then different database vendors implemented SQL in their products with some variations. To bring greater conformity between the vendors, the American Standards Institute (ANSI) published the first SQL standard in 1986.

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      What is the history of Microsoft SQL Server?
      The history of Microsoft SQL Server begins with the first Microsoft SQL Server product—SQL Server 1.0, a 16-bit server for the OS/2 operating system in 1989—and extends to the current day. Its name is entirely descriptive, it being server software that responds to queries in the SQL language.

      Microsoft SQL Server - Wikipedia

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      What does SQL stand for?
      Structured Query Language (SQL) is a widely-used programming language for working with relational databases. The name of the language is generally pronounced as the three letters of its abbreviation ˈɛs kjuː ˈɛl or, in some people's usage, as ˈsiːkwəl .

      Structured Query Language - Wikibooks, open books for an open world

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      Is SQL a database?
      While no database fully implements the standard, most are very close. There are many versions of the SQL language used with different relational database management systems (RDBMS); the most popular ones are Oracle, MySQL, Microsoft SQL Server, PostgreSQL, and SQLite. SQL started as a language for talking to relational databases.

      What Is SQL? - LearnSQL.com

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      What is SQL & how do I use it?
      SQL is a standard language for storing, manipulating and retrieving data in databases. Our SQL tutorial will teach you how to use SQL in: MySQL, SQL Server, MS Access, Oracle, Sybase, Informix, Postgres, and other database systems. With our online SQL editor, you can edit the SQL statements, and click on a button to view the result.

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      Usage example
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