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  2. Merge (SQL) - Wikipedia

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

    Additionally there is a single-row version, UPDATE OR INSERT INTO tablename (columns) VALUES (values) [MATCHING (columns)], but the latter does not give you the option to take different actions on insert versus update (e.g. setting a new sequence value only for new rows, not for existing ones.)

  3. Join (SQL) - Wikipedia

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

    Right and left outer joins are functionally equivalent. Neither provides any functionality that the other does not, so right and left outer joins may replace each other as long as the table order is switched. A Venn diagram representing the full join SQL statement between tables A and B.

  4. MongoDB - Wikipedia

    en.wikipedia.org/wiki/MongoDB

    MongoDB is also available as an on-demand, fully managed service. MongoDB Atlas runs on AWS, Microsoft Azure and Google Cloud Platform. [45] On March 10, 2022, MongoDB warned its users in Russia and Belarus that their data stored on the MongoDB Atlas platform will be destroyed as a result of American sanctions related to the Russo-Ukrainian War ...

  5. Server Side Public License - Wikipedia

    en.wikipedia.org/wiki/Server_Side_Public_License

    The Server Side Public License (SSPL) is a source-available copyleft software license introduced by MongoDB Inc. in 2018. [2] [3]It includes most of the text and provisions of the GNU Affero General Public License version 3 (AGPL v3), [4] but modifies its provisions for software that is conveyed over a network—requiring that anyone who offers the functionality of SSPL-licensed software to ...

  6. 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 ...

  7. GNU Affero General Public License - Wikipedia

    en.wikipedia.org/wiki/GNU_Affero_General_Public...

    MongoDB dropped the AGPL in late-2018 in favor of the "Server Side Public License" (SSPL), a modified version which requires those who offer the licensed software as a service accessible to third-parties, to make the entire source code of all software used to facilitate the service (including without limitation all "management software, user ...

  8. Relational algebra - Wikipedia

    en.wikipedia.org/wiki/Relational_algebra

    The relational algebra uses set union, set difference, and Cartesian product from set theory, and adds additional constraints to these operators to create new ones.. For set union and set difference, the two relations involved must be union-compatible—that is, the two relations must have the same set of attributes.

  9. Space Park - Wikipedia

    en.wikipedia.org/wiki/Space_Park

    Space Park is an aerospace engineering campus occupying over 100 acres in Redondo Beach, California, since 1961, expanding in 1968 to a nearly adjacent 90 acres in Manhattan Beach [3] (15 of which were developed as public sports facilities between 1987 and 2001; [4] 22 of which were sold in 1996 and became the MBS Media Campus [5]).