Intermediate SQL Queries
Master the basics of querying tables in relational databases such as MySQL, SQL Server, and PostgreSQL.
SQL for Joining Data
Join two or three tables together into one, combine tables using set theory, and work with subqueries in PostgreSQL.
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What is SQL Used For? 7 Top SQL UsesDiscover the uses of SQL in industries and specific jobs. Plus, learn why the SQL language is so versatile and in demand.
SQL Window Functions Cheat SheetWith this SQL Window Functions cheat sheet, you'll have a handy reference guide to the various types of window functions in SQL.
DataCamp Team •