SQL Mastery: Advanced Queries in 25 Minutes
Sarah Chen
Database Specialist & Senior Developer
About this course
Master advanced SQL techniques to optimize your database queries and significantly improve application performance. This concise 25-minute course covers complex JOIN operations, subqueries, window functions, and query optimization strategies that you can immediately apply to your projects.
What you'll learn
Course Content
1. Introduction to Advanced Queries
A quick overview of what we'll cover in this course and why these techniques matter for performance.
2. Complex JOIN Operations
3. Subquery Mastery
4. Window Functions for Data Analysis
5. Optimization Techniques
Requirements
- Basic SQL knowledge (SELECT, WHERE, JOIN, GROUP BY)
- Familiarity with a relational database system (MySQL, PostgreSQL, etc.)
- A database environment for practice (sample data will be provided)
Reviews
Jason Wright
Incredibly concise and practical. I've been using SQL for years but still learned several optimization techniques I wasn't aware of. Sarah explains complex concepts very clearly, and the examples are relevant to real-world scenarios.
Linda Patel
Great introduction to advanced SQL topics. The window functions section was particularly helpful for my data analysis work. Would have liked more examples for some of the more complex optimization techniques.
Carlos Rodriguez
The perfect format for busy professionals. I was able to implement the indexing strategies immediately in our production database and saw a significant performance improvement. Would definitely recommend to any developer working with databases.
