SQL Crash Course: JOINs, CTEs, and Window Functions

· Anton Liberant · Feb. 23, 2026, 5:13 p.m.
Summary
This blog post serves as a modern SQL guide covering essential concepts like SELECT statements, filtering, sorting, aggregates, JOINs, Data Manipulation Language (DML), Data Definition Language (DDL), Common Table Expressions (CTEs), execution order, indexes, and window functions. It's a comprehensive resource for developers looking to enhance their SQL skills.
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