Advanced SQL Queries
Description
Basic SQL is the starting point for seven PDF lessons on the techniques used in demanding analysis. They cover subqueries and nested queries, complex joins and relationships, window functions, and common table expressions including recursive queries.
One lesson looks at performance optimization and query tuning, and the last applies the techniques to realistic business problems. After reading, you will be able to write and read longer queries, choose between a subquery, a join or a CTE, and spot why a query runs slowly. Exercises are included. Readers should already be comfortable with SELECT, WHERE and basic joins.
Who it is for: analysts and developers who already write basic SQL and want to handle harder queries.
What’s included
7 PDF lessons · 55 pages · about 14,500 words
One ZIP download that is yours to keep — read on any device, no subscription or app needed.
Course programme
- Getting Started with Advanced SQL Concepts
- Mastering Subqueries and Nested Queries
- Working with Complex Joins and Relationships
- Window Functions for Data Analysis
- Common Table Expressions (CTEs) and Recursive Queries
- Performance Optimization and Query Tuning
- Real-World Advanced SQL Applications
4
Products
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Category:Analysis
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Product Type:Course
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Level:Advanced
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Duration:30 min – 2 hours
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Format:7 PDF lessons (ZIP)
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Delivery:Download link by email and in Account → Orders
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Delivery time:Instant, right after payment
What you get
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7 PDF lessons One ZIP download · 681.0 KB
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Instant download Right after payment — no waiting
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Lifetime access Unlimited downloads from your account
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30 min – 2 hours of study Learn at your own pace
Add-ons
How it works
- Pay securely Visa or Mastercard with 3D Secure.
- Download instantly The download link arrives by email with your invoice and is always in Account → Orders.
- Learn on any device Open the PDF files on your phone, tablet or computer — no app or subscription needed.
14-day refund guarantee if you have used less than 25% of the content — see the Return and Refund Policy.
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