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  2. Better Database Stock: Oracle vs. MongoDB - AOL

    www.aol.com/better-database-stock-oracle-vs...

    That need prompted MongoDB (NASDAQ: MDB) to introduce Atlas, a non-relational database that can store unstructured data types. However, Oracle responded by introducing its own non-relational database.

  3. Multiversion concurrency control - Wikipedia

    en.wikipedia.org/wiki/Multiversion_concurrency...

    However, despite locks being unnecessary, they are used by some MVCC databases such as Oracle. Writes create a newer version, while concurrent reads access an older version. MVCC introduces the challenge of how to remove versions that become obsolete and will never be read.

  4. Multi-master replication - Wikipedia

    en.wikipedia.org/wiki/Multi-master_replication

    It supports MySQL, Oracle, SQL Server, PostgreSQL, IBM Db2, Firebird, Interbase, HSQLDB, H2, Apache Derby, Informix, Greenplum, SQLite, Sybase ASE, and Sybase ASA. Licensed under both open source and commercial licenses. Daffodil Replicator is a Java tool for data synchronization, data migration, and data backup between various database servers.

  5. Schema migration - Wikipedia

    en.wikipedia.org/wiki/Schema_migration

    A schema migration is performed on a database whenever it is necessary to update or revert that database's schema to some newer or older version. Migrations are performed programmatically by using a schema migration tool. When invoked with a specified desired schema version, the tool automates the successive application or reversal of an ...

  6. MongoDB (MDB) Q3 2025 Earnings Call Transcript - AOL

    www.aol.com/mongodb-mdb-q3-2025-earnings...

    Image source: The Motley Fool. MongoDB (NASDAQ: MDB) Q3 2025 Earnings Call Dec 09, 2024, 5:00 p.m. ET. Contents: Prepared Remarks. Questions and Answers. Call ...

  7. MongoDB - Wikipedia

    en.wikipedia.org/wiki/MongoDB

    In addition, MongoDB Inc. offers proprietary licenses for MongoDB. The last versions licensed as AGPL version 3 are 4.0.3 (stable) and 4.1.4. [53] MongoDB has been removed from the Debian, Fedora and Red Hat Enterprise Linux distributions because of the licensing change. Fedora determined that the SSPL version 1 is not a free software license ...

  8. Canonical model - Wikipedia

    en.wikipedia.org/wiki/Canonical_model

    Often the term canonical model is used interchangeably with integration strategy and often entails a move to a message-based integration methodology. A typical migration from point-to-point canonical data model, an enterprise design pattern which provides common data naming, definition and values within a generalized data framework.

  9. Comparison of relational database management systems - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_relational...

    Oracle has its own spin where creating a user is synonymous with creating a schema. Thus a database administrator can create a user called PROJECT and then create a table PROJECT.TABLE. Users can exist without schema objects, but an object is always associated with an owner (though that owner may not have privileges to connect to the database).