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  2. Virtual column - Wikipedia

    en.wikipedia.org/wiki/Virtual_column

    In relational databases a virtual column is a table column whose value(s) is automatically computed using other columns values, or another deterministic expression. Virtual columns are defined of SQL:2003 as Generated Column, [1] and are only implemented by some DBMSs, like MariaDB, SQL Server, Oracle, PostgreSQL, SQLite and Firebird (database server) (COMPUTED BY syntax).

  3. MySQL - Wikipedia

    en.wikipedia.org/wiki/MySQL

    [5] [6] Its name is a combination of "My", the name of co-founder Michael Widenius's daughter My, [7] and "SQL", the 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. SQL is a language that programmers use ...

  4. MariaDB - Wikipedia

    en.wikipedia.org/wiki/MariaDB

    MariaDB version numbers follow MySQL's numbering scheme up to version 5.5. Thus, MariaDB 5.5 offers all of the MySQL 5.5 features. There exists a gap in MySQL versions between 5.1 and 5.5, while MariaDB issued 5.2 and 5.3 point releases.

  5. Database index - Wikipedia

    en.wikipedia.org/wiki/Database_index

    A database index is a data structure that improves the speed of data retrieval operations on a database table at the cost of additional writes and storage space to maintain the index data structure. Indexes are used to quickly locate data without having to search every row in a database table every time said table is accessed.

  6. Big data - Wikipedia

    en.wikipedia.org/wiki/Big_data

    A research question that is asked about big data sets is whether it is necessary to look at the full data to draw certain conclusions about the properties of the data or if is a sample is good enough. The name big data itself contains a term related to size and this is an important characteristic of big data.

  7. List of Internet top-level domains - Wikipedia

    en.wikipedia.org/wiki/List_of_Internet_top-level...

    This list of Internet top-level domains (TLD) contains top-level domains, which are those domains in the DNS root zone of the Domain Name System of the Internet.A list of the top-level domains by the Internet Assigned Numbers Authority (IANA) is maintained at the Root Zone Database. [1]

  8. Athens - Wikipedia

    en.wikipedia.org/wiki/Athens

    Variant names included Setines, Satine, ... Climate data for downtown Athens (1991–2020, extremes 1890–present) ... 5 7 9 10 10 9 6 4 2 2 6

  9. List of Outlander episodes - Wikipedia

    en.wikipedia.org/wiki/List_of_Outlander_episodes

    Outlander is a historical drama television series based on the Outlander series of historical time travel novels by Diana Gabaldon. Developed by Ronald D. Moore and produced by Sony Pictures Television and Left Bank Pictures for Starz, the show premiered on August 9, 2014. It stars Caitríona Balfe as Claire Randall, a married former World War II nurse, later surgeon, who in 1946 finds herself ...