Query is a request you send to a database (or an API) to get specific information — like “give me all users named Ana” or “show me orders from last week.”
It’s one of the most fundamental concepts in tech. In SQL databases, a query might look like:
SELECT * FROM users WHERE name = 'Ana';In GraphQL or REST APIs, queries also let you ask for exactly the data you need. Queries can be simple (a name search) or complex (grouping, filtering, sorting, and joining multiple tables).
Why are queries so powerful?
Because they give you control. Instead of downloading a whole dataset, you ask for just what matters. Whether you’re building an e-commerce dashboard, a search feature, or an analytics report — queries are the engine behind the scenes.
Want to get your hands dirty? This intro to SQL queries is a great start: SQL Queries – W3Schools
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