What do you understand about Proactive, Retroactive and Simultaneous Update in the context of DBMS?

What do you understand about Proactive, Retroactive and Simultaneous U

1.	What do you understand about Proactive, Retroactive and Simultaneous Update in the context of DBMS?
Answer» PROACTIVE Updates: These CHANGES are MADE to the database before it is put into use in the real-world ENVIRONMENT. Retroactive Updates: These updates are applied to a database after it has been operational in the real-world environment. Simultaneous Updates: These updates are applied to the database at the same moment as they become FUNCTIONAL in the real-world environment.