Databases & SQL

Replication

/ˌreplɪˈkeɪʃən/

Definition

Copying data from a primary database to one or more replicas to improve read performance and provide failover capability.

Example in context

"All reads go to the read replica — the primary only handles writes, reducing its load by 70%."

Practice this term

Master Replication in context by working through exercises in the Databases & SQL module. You'll see the term used in real engineering scenarios with multiple-choice, fill-in-the-blank, and matching drills.