juniorSQL
What is a SELECT statement?
Updated May 17, 2026
Short answer
SELECT retrieves data from a database table.
Deep explanation
SELECT is used to query specific columns or all columns from a table using filters, sorting, and grouping.
Real-world example
Fetching user emails for a marketing campaign.
Common mistakes
- Using SELECT * unnecessarily, which reduces performance.
Follow-up questions
- Why avoid SELECT *?
- Can SELECT be used without FROM?