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Fourth reading, chapter 12, Ariana Alvarado Molina 2021089068 - Coggle…
Fourth reading, chapter 12
Schema Changes
Discussions, iterations and cycles -> important to obtain the correct compression of the data.
In the world of schemaless databases, -> requires paying attention to schema migration.
Schema Changes in RDBMS
RDBMS Technologies -> we develop objects, tables, and relationships.
Change in the object model -> you have to change the object, the DB table, because it will not be synchronized with the DB.
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Key Points
For robust DBs with schemas, such as relational ones, migration is done with schema changes and version-sequenced data.
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