SQL Queries

Learn how to write SQL queries for single and multiple tables in a database. Try out our interactive online SQL course.

Operating on Data in SQL

Find out how to insert, update and delete data from a relational database. Check out our online interactive SQL tutorial.

Creating Tables in SQL

Learn how to create and manage the structure of relational database. Discover our online interactive SQL course.

Standard SQL Functions

Learn the most commonly used Standard SQL Functions.

Window Functions

Use analytic functions to deeply understand data.

Common Table Expressions

Discover how to power up SQL queries and traverse hierarchical models.

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