SQL Subqueries: Never Make These Mistakes

Unlock the power of SQL subqueries while avoiding common pitfalls that can lead to complex and inefficient queries. In this video, we dive deep into subqueries and explore how they can simplify your SQL code-or hurt your query performance if used incorrectly. I'll walk you through different types of subqueries, like single-row, multi-row, correlated, and scalar subqueries, and show you real-world examples of how to use them effectively.
We'll also tackle the age-old question: Should you use subqueries or joins? And I'll highlight some common performance pitfalls to avoid, especially when working with large datasets.
By the end of this video, you'll know exactly when to use subqueries and how to optimize your SQL queries for maximum performance!
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