There is a great writing from Stripe which explains their process for database migration : - Dual writing to the existing and new tables to keep them in sync. -

There is a great writing from Stripe which explains their process for database migration : - Dual writing to the existing and new tables to keep them in sync. - Changing all read paths in our codebase to read from the new table. - Changing all write paths in our codebase to only write to the new table. - Removing old data that relies on the outdated data model. https://stripe.com/fr/blog/online-migrations https://stripe.com/fr/blog/online-migrations