Relational Database Design and SQL Querying Foundations — PickAClass
⏱ 2h 30m 📚 25 lessons

Relational Database Design and SQL Querying Foundations

Master the essentials of relational database design, write structured SQL queries, and manage transactions and database objects to build reliable data systems.

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  • 🌐 In English
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About this course

In today's data-driven world, understanding how to store, organize, and retrieve structured information is a fundamental skill for any developer, analyst, or IT professional. This text-based course provides a clear, step-by-step pathway to mastering relational databases and the SQL language. You will transition from a beginner to a confident database designer capable of structuring real-world data, writing optimization-ready queries, and ensuring data integrity through transactions. What you'll learn: Understand the core principles of the relational model and structured data; Design efficient database schemas using normalization and relationship mapping; Write powerful SQL queries to retrieve, filter, and manipulate data; Implement advanced database objects including views, stored procedures, functions, and triggers; Optimize data access using indexes and manage concurrent access safely; Manage transactions to guarantee data consistency and system reliability; Explore modern database features, including handling semi-structured JSON data within relational systems. The course begins with foundational database concepts and data modeling before moving into practical SQL syntax. You will then progress to advanced database programming, transaction control, and performance optimization techniques through clear written explanations and practical code examples. This course is designed for beginners with no prior database experience, as well as developers looking to solidify their relational database fundamentals. Start reading today to build a strong foundation in database design and SQL querying.

What you'll get

  • 📜 Certificate of completion
    Add it to your LinkedIn profile
  • 💬 Personal AI tutor
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  • ♾️ Lifetime access
    Come back anytime, no expiry
  • 📱 Phone or computer
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  • 💸 14-day refund
    No questions asked
  • Short & focused
    2h 30m of practical content

Certificate of completion

Every course you complete on PickAClass issues a credential like this — original, with its own code, verifiable by URL, and detailed about what was actually demonstrated.

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PickAClass
Skills profile · verifiable
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Certificate of Mastery
This certifies that
Name Surname
has successfully demonstrated mastery of
Relational Database Design and SQL Querying Foundations
Skills demonstrated
Behavioral pattern analysis
Foundational
1.2 hrs
Decision-architecture frameworks
Proficient
1.4 hrs
A/B test design
Proficient
1.7 hrs
Behavioral copywriting
Advanced
1.9 hrs
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PickAClass — Name Surname
Relational Database Design and SQL Querying Foundations
Page 2 of 2
Performance detail
Coursework summary
Lessons completed 14 / 14
Practice questions 26 / 28
Assignments submitted 4 (avg 4.5 / 5)
Capstone project Reviewed — 4.6 / 5
Total practice 6.2 hrs
Performance benchmark
Cohort rank Top 12% of 1,625
Time to completion 11 days (median: 22)
Mastery score 91 / 100
Practice-question score 94%
Skill verification Verified Skill Path
Verify this credential
pickaclass.com/certificates/PCC-2026-X4F7-AP19
Issued under the academic standards of PickAClass. Skill levels reflect assessed performance against the course's competency rubric. This is an original credential of this platform.

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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. We don’t store card details — Stripe handles them securely.

Can I get a refund? +

Yes — full refund within 14 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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