SQL Fundamentals: Query and Analyze Relational Databases

Learn to write clean, efficient SQL queries from scratch to extract, analyze, and manage data in relational databases.

4.7 (1,133) ⏱ 45 min 📚 3 lessons 🎧 Audio version

About this course

Modern organizations run on data, and knowing how to access it directly is a superpower. Understanding how to query relational databases empowers you to make data-driven decisions without relying on pre-made reports. This course guides you from absolute beginner to confidently writing your own queries, starting with fundamental database concepts and moving to structured data analysis. What you'll learn: - Understand relational database structures, schemas, and core SQL terminology. - Retrieve and filter data using SELECT statements, WHERE clauses, and logical operators. - Aggregate and summarize data to generate meaningful analytical reports. - Combine data from multiple tables using various JOIN techniques. - Create and modify database structures using Data Definition Language (DDL) and Data Manipulation Language (DML). - Write modern, readable queries using Common Table Expressions (CTEs) and clean formatting standards. You will begin with core concepts before diving into hands-on written syntax examples, progressing from basic data retrieval to complex multi-table queries and data modification commands. This course is designed for beginners with no prior programming or database experience who want to build a solid foundation in data querying. Start reading today to unlock the power of relational databases and elevate your data analysis skills.

What you'll get

  • 📜 Certificate of completion
    Add it to your LinkedIn profile
  • 🎧 Audio version included
    Learn on the go — no screen needed
  • ♾️ Lifetime access
    Come back anytime, no expiry
  • 📱 Phone or computer
    Works anywhere, any device
  • 💸 30-day refund
    No questions asked
  • Short & focused
    45 min of practical content

Reviews (2)

Paul Richter CH Verified learner
★ 3 · 2025-09-04T03:41:10+00:00

Hmm, I'm not sure this is for absolute beginners. It assumes a bit of prior knowledge that wasn't explicitly taught. Some examples were confusing.

فاطمة بنت خليفة السعدي OM Verified learner
★ 3 · 2025-07-08T05:34:10+00:00

It's a good course if you have some prior knowledge. For absolute beginners, some concepts might be a bit challenging. The structure is logical, though.

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Frequently asked

What do I need to take this course? +

Just a phone or computer with internet. No installs, no special hardware.

How do I pay? +

By card via Stripe, or with cryptocurrency. We do not store card details — Stripe handles them securely.

Can I get a refund? +

Yes — full refund within 30 days, no questions asked.

How long will I have access? +

Forever. Once you purchase, the course is yours to revisit anytime.

Will I get a certificate? +

Yes. On completion you'll receive a certificate you can add to your LinkedIn profile.

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