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  2. Primary key - Wikipedia

    en.wikipedia.org/wiki/Primary_key

    In the relational model of databases, a primary key is a designated attribute that can reliably identify and distinguish between each individual record in a table.The database creator can choose an existing unique attribute or combination of attributes from the table (a natural key) to act as its primary key, or create a new attribute containing a unique ID that exists solely for this purpose ...

  3. Candidate key - Wikipedia

    en.wikipedia.org/wiki/Candidate_key

    A candidate key is a minimal superkey, [1] i.e., a superkey that does not contain a smaller one. Therefore, a relation can have multiple candidate keys, each with a different number of attributes. [2] Specific candidate keys are sometimes called primary keys, secondary keys or alternate keys.

  4. MySQL - Wikipedia

    en.wikipedia.org/wiki/MySQL

    A command-line interface is a means of interacting with a computer program where the user issues commands to the program by typing in successive lines of text (command lines). MySQL ships with many command line tools, from which the main interface is the mysql client. [125] [126]

  5. Table of keyboard shortcuts - Wikipedia

    en.wikipedia.org/wiki/Table_of_keyboard_shortcuts

    (While in app switching window, ⌘ Cmd+` can be used to select backward, ⌘ Cmd+1 can be used to view selected app's windows) Alt+Tab ↹ / Alt+⇧ Shift+Tab ↹ or Alt+Tab ↹ / Alt+⇧ Shift+Tab ↹ to switch windows within the same application (Gnome) Hold Alt, then quickly press Tab ↹: Switch window without dialog (next/previous) Alt+Esc /

  6. Outline of MySQL - Wikipedia

    en.wikipedia.org/wiki/Outline_of_MySQL

    It was developed by MySQL AB, and enables users to graphically administer MySQL databases and visually design database structures. Adminer – free MySQL front end capable of managing multiple databases, with many CSS skins available. It is a light-weight alternative to phpMyAdmin, distributed under the Apache license (or GPL v2) as a single ...

  7. MySQL Workbench - Wikipedia

    en.wikipedia.org/wiki/MySQL_Workbench

    MySQL Workbench is the first MySQL family of products that offer two different editions - an open source and a proprietary edition. [31] The "Community Edition" is a full featured product that is not crippled in any way. Being the foundation for all other editions it will benefit from all future development efforts.

  8. HeidiSQL - Wikipedia

    en.wikipedia.org/wiki/HeidiSQL

    HeidiSQL is a free and open-source administration tool for MariaDB, MySQL, as well as Microsoft SQL Server, PostgreSQL and SQLite. Its codebase was originally taken from Ansgar Becker's own MySQL-Front 2.5 software. After selling the MySQL-Front branding to an unrelated party, Becker chose "HeidiSQL" as a replacement.

  9. Configuration file - Wikipedia

    en.wikipedia.org/wiki/Configuration_file

    These served as the primary mechanism to configure the operating system and application features. [4] The APIs to read and write from these still exist in Windows, but after 1993, Microsoft began to steer developers away from using INI files and toward storing settings in the Windows Registry , a hierarchical database to store configuration ...