Query real databases with confidence.

SQL is the standard language for querying and managing relational databases used across nearly every IT and data role. Start from database basics and build up to writing practical, real queries.

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What you'll learn

Write SELECT queries to retrieve and filter data from tables
Use JOINs to combine data across multiple tables
Apply WHERE, GROUP BY, and ORDER BY clauses to shape query results
Understand basic database concepts like tables, keys, and relationships

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