If the only thing one has is a DB connection and tables, maybe some stored procedures, it's irrelevant. Move freely between databases most of the time with mini

If the only thing one has is a DB connection and tables, maybe some stored procedures, it's irrelevant. Move freely between databases most of the time with minimal efforts. You care in the case when your predecessors fell for the lock-in tricks. Database doing job scheduling, actual code in the database (SSIS and the rest), and thing like that.