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- Schema_migration abstract "In software engineering, schema migration (also database migration, database change management) refers to the management of incremental, reversible changes to relational database schemas. 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 appropriate sequence of schema changes until it is brought to the desired state.Even though most schema migration tools aim to minimise the impact of schema changes on any existing data in the database undergoing migration, preservation of data in general is not guaranteed because schema changes such as the deletion a database column can destroy data (i.e. all values stored under that column for all rows in that table are deleted). Therefore, schema migration is typically only used when the data held in the database is not real nor valuable, such as in software development, where developers work only with (possibly generated) test data. Programmatic schema migrations are almost never performed in production for the same reason.".
- Schema_migration wikiPageExternalLink flywaydb.org.
- Schema_migration wikiPageExternalLink migrations.html.
- Schema_migration wikiPageExternalLink ruckusing-migrations.
- Schema_migration wikiPageID "34793825".
- Schema_migration wikiPageRevisionID "605071938".
- Schema_migration hasPhotoCollection Schema_migration.
- Schema_migration subject Category:Agile_software_development.
- Schema_migration subject Category:Databases.
- Schema_migration subject Category:Software_engineering.
- Schema_migration comment "In software engineering, schema migration (also database migration, database change management) refers to the management of incremental, reversible changes to relational database schemas. 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.".
- Schema_migration label "Schema migration".
- Schema_migration sameAs m.0j3gs4m.
- Schema_migration sameAs Q7431119.
- Schema_migration sameAs Q7431119.
- Schema_migration wasDerivedFrom Schema_migration?oldid=605071938.
- Schema_migration isPrimaryTopicOf Schema_migration.