Ruby on Rails

>I'm not sure about why the word "migration" is used, but maybe you get somewhere reading database's theory or history.

Schemas change, the data migrates to the new schema. 

Probably in reference to older databases for sites developed with the likes of Active Server Pages / Java Servelets / Dream Weaver / Java Beans where the actual site "data" had to be manually moved between databases.

Remember when sites would take a few days off and simply show "website under construction"?

On Tue, Aug 20, 2019 at 1:08 PM Ariel Juodziukynas <arieljuod@gmail.com> wrote:

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 (<younes.serraj@gmail.com>) 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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