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Advanced SQL Optimization

Master query tuning and database performance. Deep dive into indexing strategies, execution plans, and normalization for high-speed applications.

Writing SQL is easy; writing fast SQL is hard. This course turns you into a database performance expert. You will learn to read and interpret Query Execution Plans to understand exactly how the database retrieves data. Master advanced indexing strategies (B-Tree, Hash, GIN), partitioning, and materialized views. We cover identifying bottlenecks, optimizing joins, and configuring database parameters to ensure your queries run in milliseconds, not minutes.

✅ 100% Free & Lifetime Access
⏱️ 5-Minute Lessons (Bite-sized learning)
🚀 21-Lesson Path (Independent modules)
📱 Mobile Friendly (Learn anywhere)
DBA Team
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Secure Enrollment via SSL

Complete Course Syllabus

  • 1
    Database Internals
    How storage engines write and retrieve data pages.
  • 2
    Indexing Deep Dive
    B-Trees, Hash indexes, and when to use them.
  • 3
    Execution Plans
    Reading EXPLAIN output to find full table scans.
  • 4
    Advanced Joins
    Nested Loops, Hash Joins, and Merge Joins explained.
  • 5
    Partitioning
    Splitting large tables for faster access and maintenance.

Estimated completion time: 21 lessons • Self-paced learning • Lifetime access

Career Outlook

Estimated Salary
$120k - $160k

Career Paths

Database Administrator $110k-$150k
Data Engineer $120k-$165k
Backend Performance Eng $130k-$170k

What You Will Learn

Analyze Query Execution Plans to identify performance bottlenecks Implement appropriate Indexing strategies (Clustered, Non-Clustered, Composite) Optimize complex JOINs and Subqueries for maximum efficiency Utilize Table Partitioning to manage massive datasets Refactor slow legacy queries using modern SQL best practices

Skills You Will Gain

Query Tuning Indexing Strategies Execution Plans Database Internals PostgreSQL

Who Is This For

Backend Developers
Data Engineers
Database Administrators

Prerequisites

Solid SQL Experience Relational Concepts

Advanced SQL Optimization FAQs

Database specific?

Focus on PostgreSQL, but concepts apply to MySQL/Oracle.

Prerequisites?

Must be comfortable writing complex joins already.

Is this DBA work?

Yes, but essential for senior backend developers.

Tools used?

Mainly command line and visual explain tools.

Need more info?
All Reork courses are 100% free, self-paced, and fully accessible on mobile devices. No prior experience is required. Read our full Platform FAQ.

Tech Stack & Tools

PostgreSQL pgAdmin EXPLAIN ANALYZE SQL Server Profiler DBeaver

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