What does Rails DB Reset do?
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Regarding this, what does DB Reset do?
Difference between rake db:migrate db:reset and db:schema:load. rake db:migrate - Runs the migrations which haven't been run yet. rake db:reset - Clears the database (presumably does a rake db:drop + rake db:create + rake db:migrate ) and runs migration on a fresh database.
Also, how do I delete a database in Rails? When working on a Rails app, you might sometimes need to drop the local database and start fresh with data loaded from db/seeds. rb, what do you do? Short answer: use rake db:reset . This drops the database, then loads the schema with rake db:schema:load and then seeds the data with rake db:seed .
One may also ask, what does Rails DB setup do?
4.2 Setup the Database The rails db:setup command will create the database, load the schema, and initialize it with the seed data.
How does Rails know which migrations to run?
1 Answer. Rails creates a table in your database called schema_migrations to keep track of which migrations have run. The table contains a single column, version . When Rails runs a migration, it takes the leading digits in the migration's file name and inserts a row for that "version", indicating it has been run.