Write Complex Subqueries in SQL
Master complex SQL subqueries in this course. Learn how to use correlated subqueries, subqueries in SELECT, FROM, and WHERE clauses, and apply these techniques across different SQL platforms.
What you'll learn
Writing complex SQL queries is essential for advanced database management and optimization.
In this course, Write Complex Subqueries in SQL, you'll learn how to utilize powerful subquery techniques, including correlated subqueries, subqueries in the SELECT clause, FROM clause, and WHERE clause. Through hands-on demos and real-world examples, you’ll see how to simplify and optimize your SQL queries using these advanced techniques.
When you’re finished with this course, you’ll have a better understanding of how to write and optimize complex subqueries, filter and compare data dynamically, and adapt your skills across multiple SQL platforms, including SQL Server, MySQL, and PostgreSQL.
Table of contents
- Demo: Filtering and Comparing Data with Correlated Subqueries 3m
- Demo: Adding Dynamic Values with Subqueries in the SELECT Clause 3m
- Demo: Organizing Complex Queries with Subqueries in the FROM Clause 3m
- Demo: Filtering Results Dynamically with Subqueries in the WHERE Clause 3m
- Comparing Subqueries Across SQL Platforms 2m
About the author
Pinal Dave is an SQL Server Performance Tuning Expert and independent consultant with over 22 years of hands-on experience. He holds a Master of Science degree and numerous database certifications. Pinal has authored 14 SQL Server database books and 81 Pluralsight courses. To freely share his knowledge and help others build their expertise, Pinal has also written more than 5,800 database tech articles on his blog at https://blog.sqlauthority.com.