SQL Crash Course: JOINs, CTEs, and Window Functions

· · Feb. 23, 2026, 5:13 p.m.
Databases SQL JOINs CTEs
Summary
This blog post offers a comprehensive guide to modern SQL, covering key concepts such as SELECT statements, filtering, sorting, aggregates, JOINs, Data Manipulation Language (DML), Data Definition Language (DDL), Common Table Expressions (CTEs), execution order, indexes, and window functions.
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