It's because Database Migration (aka Schema Migration) is versionned.
So, we migrate (increment, decrement, etc..) from a schema version to
another one.
Feel free to visit this Wiki page for further information:
https://en.m.wikipedia.org/wiki/Schema_migration
Hope that helps..
Mehdi
Younes
The term not just for Rails, schema migration is a database concept
https://en.wikipedia.org/wiki/Schema_migration
I'm not sure about why the word "migration" is used, but maybe you get
somewhere reading database's theory or history.
El mar., 20 ago. 2019 a las 13:13, Younes Serraj ()
escribió:
A client just asked me why we call them "database migrations" and not
"database alterations". It made me curious, so I'm asking you guys: why?
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