DatabasesBeginner
Query
PronunciationKWEER-ee
Definition
A request to the database to read or change data, usually written in SQL.
Where you hear it
Performance work: "this query is slow".
Examples
Run this query to find all unpaid invoices.
The query takes 8 seconds because there is no index.
Common mistake
Building queries by joining strings with user input. That opens the door to SQL injection; use parameters.