Database Migration «4K»

Early attempts to move often look like a "Big Bang" approach. You turn off the application, copy the database, and turn it on in the new location.

For a high-traffic app, "turning it off" for 4 hours costs millions in revenue and causes massive customer anger. database migration

You must map every dependency—every table, view, and stored procedure. Early attempts to move often look like a "Big Bang" approach