What is SQL?
A language for communicating with databases, used to create, read, update, and delete data
Why It Matters
SQL is the standard language for most databases, making it essential knowledge for working with your app's data
Real-World Example
SELECT * FROM customers WHERE city = 'Melbourne' retrieves all Melbourne customers
“Understanding terms like SQL matters because it helps you have better conversations with developers and make smarter decisions about your software. You do not need to be technical. You just need to know enough to ask the right questions.”
Related Terms
Database
An organised collection of data that your application can store, retrieve, and update
PostgreSQL
A powerful, free, open-source database known for reliability and advanced features
Query
A request to retrieve, create, update, or delete data from a database
NoSQL
Databases that store data differently from traditional tables, often as flexible documents or key-value pairs
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