N+1 Query
/en plʌs wʌn ˈkwɪəri/
Definition
A performance anti-pattern where loading N items triggers N additional database queries instead of a single join.
Example in context
"50 orders, 50 separate customer queries — classic N+1. Fixed it with an eager-load JOIN."
Practice this term
Master N+1 Query 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.