What SQL means
A query such as SELECT name FROM students WHERE course = 'web' returns exactly the data needed.
SQL is also widely used outside development, by analysts and marketers who pull reports from data.
Web Development
SQLStructured Query Language
SQL is the standard language for creating, reading, updating, and deleting data in relational databases such as PostgreSQL and MySQL.
Example
A short SQL query counts how many enquiries each campaign produced last month, straight from the database.
Why it matters
SQL is one of the most durable technical skills, useful in development, analytics, and marketing alike.
Keep learning
Related terms.
- DatabaseA database is an organised store of data, such as users, products, and orders, that applications read and write reliably and quickly.
- Back-end developmentBack-end development is building the server side of a website: databases, APIs, logins, payments, and the business logic users do not see.
- JSONJSON is a lightweight text format for structured data, written as keys and values. It is the standard format APIs use to exchange data.
Web Development
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