[FIXED] How to clear history and run all migrations from the beginning?

Issue

How I can clear history using alembic? I couldn't find this option in alembic history. I want to run from the first migration rather than the last applied.

Solution

If you want to start with a fresh database, just drop the database, create a new one, then run the migrations. For example, with PostgreSQL:

$ dropdb my_db
$ createdb my_db
$ alembic upgrade head

Now you have a blank database with all the migrations applied.

Answered By - davidism

Answer Checked By - Candace Johnson (PHPFixing Volunteer)