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  2. Group by (SQL) - Wikipedia

    en.wikipedia.org/wiki/Group_by_(SQL)

    Group by (SQL) A GROUP BY statement in SQL specifies that a SQL SELECT statement partitions result rows into groups, based on their values in one or several columns. Typically, grouping is used to apply some sort of aggregate function for each group. [1] [2]

  3. MySQL - Wikipedia

    en.wikipedia.org/wiki/MySQL

    MySQL (/ ˌ m aɪ ˌ ɛ s ˌ k juː ˈ ɛ l /) is an open-source relational database management system (RDBMS).. "SQL" in the name is an acronym for Structured Query Language.A relational database organizes data into one or more data tables in which data may be related to each other; these relations help structure the data.

  4. NoSQL - Wikipedia

    en.wikipedia.org/wiki/NoSQL

    NoSQL. NoSQL (originally referring to "non- SQL " or "non-relational") [1] is an approach to database design that focuses on providing a mechanism for storage and retrieval of data that is modeled in means other than the tabular relations used in relational databases. Instead of the typical tabular structure of a relational database, NoSQL ...

  5. MySQLi - Wikipedia

    en.wikipedia.org/wiki/MySQLi

    The MySQLi Extension ( MySQL Improved) is a relational database driver used in the PHP scripting language to provide an interface with MySQL databases ( MySQL, Percona Server and MariaDB ). [1] There are three main API options when considering connecting to a MySQL database server: PHP's MySQL Extension. PHP's MySQLi Extension.

  6. Web SQL Database - Wikipedia

    en.wikipedia.org/wiki/Web_SQL_Database

    Web SQL Database is a deprecated web browser API specification for storing data in databases that can be queried using SQL variant. [1] [2] The technology was only ever implemented in Blink-based browsers like Google Chrome and the new Microsoft Edge, and WebKit-based browsers like Safari. As of February 2024, WebSQL is being phased out in ...

  7. InnoDB - Wikipedia

    en.wikipedia.org/wiki/InnoDB

    InnoDB is a storage engine for the database management system MySQL and MariaDB. [1] Since the release of MySQL 5.5.5 in 2010, it replaced MyISAM as MySQL's default table type. [2] [3] It provides the standard ACID -compliant transaction features, along with foreign key support ( declarative referential integrity ).

  8. SQL - Wikipedia

    en.wikipedia.org/wiki/SQL

    Structured Query Language ( SQL) ( pronounced S-Q-L; historically "sequel") [4] [5] 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.

  9. Database - Wikipedia

    en.wikipedia.org/wiki/Database

    An SQL select statement and its result. In computing, a database is an organized collection of data or a type of data store based on the use of a database management system ( DBMS ), the software that interacts with end users, applications, and the database itself to capture and analyze the data. The DBMS additionally encompasses the core ...