Learn SQL

The standard language for managing and querying relational databases like MySQL, PostgreSQL, SQL Server, and Oracle.
Master data retrieval, manipulation, and definition with SELECT, JOIN, INSERT, UPDATE, DELETE, and more.
Essential for data analysts, backend developers, data engineers, and anyone working with structured data.

🎓 SQL Tutorial

Step-by-step SQL tutorial from beginner to advanced. Learn SELECT statements, WHERE clauses, JOINs, GROUP BY, subqueries, window functions, indexes, transactions, and database design principles.