SQL Database Design: Prevent Multiple Column Antipatterns โ€” WalkSelf
โฑ 2h 48m ๐Ÿ“š 28 lessons

SQL Database Design: Prevent Multiple Column Antipatterns

Learn to identify and correct common database design flaws, building more efficient and scalable SQL databases from the ground up.

  • ๐Ÿ’ฌ AI instructor
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  • ๐Ÿ• Start anytime
    No schedules or deadlines โ€” learn at your own pace, whenever suits you.
  • ๐ŸŒ In English
    Lessons, tasks and certificate โ€” all fully in your language.

About this course

Are you struggling with database designs that are hard to maintain, slow to query, or difficult to adapt? Poor schema choices, like creating multiple columns for what should be a single attribute, can lead to significant problems down the line. This course will equip you with foundational knowledge in SQL database design, enabling you to recognize and prevent common antipatterns. You'll learn to build robust, scalable, and efficient database schemas that support your applications effectively.What you'll learn:Understand the core principles of relational database design and normalization forms.Identify the "multiple columns for a single attribute" antipattern and its detrimental effects on data integrity and query performance.Apply strategies for refactoring problematic schemas into well-structured, normalized designs.Practice designing flexible and extensible tables using techniques like junction tables and proper attribute decomposition.Learn to evaluate schema choices for their impact on application development and data retrieval efficiency.Implement essential data integrity constraints to maintain data quality within your database.The course begins by establishing fundamental database concepts and the purpose of good design, then delves into identifying and resolving the specific antipattern, concluding with best practices for building maintainable schemas.This course is for absolute beginners with no prior database design experience. No prerequisites are required.Start building better SQL databases today.

What you'll get

  • ๐Ÿ“œ Certificate of completion
    Add it to your LinkedIn profile
  • ๐Ÿ’ฌ Personal AI tutor
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  • โ™พ๏ธ Lifetime access
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  • ๐Ÿ“ฑ Phone or computer
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  • ๐Ÿ’ธ 14-day refund
    No questions asked
  • โšก Short & focused
    2h 48m of practical content

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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 donโ€™t store card details โ€” Stripe handles them securely.

Can I get a refund? +

Yes โ€” 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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