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SQL Refresher Course

What will I learn?

Improve ya SQL skills wit' our SQL Sharpener Course, wey dem design for tech people wey wan' improve how dem sabi database. Enter inside database design, sabi how to write SQL query well, and make performance dey top wit' advanced techniques. Learn how to handle data well, check complex queries, and make sure say you dey up-to-date wit' di latest SQL features and di correct way to do things. Dis short and correct course go give you di power to handle real-life problems, so dat you go dey on top of ya game.

Apoia's Unique Features

Accessible online course for a lifetime
Certificate aligned with educational standards
Printable PDF summaries
24/7 online assistance available
Select and arrange the chapters you want to study
Customize the course workload
Instant feedback on practical activities
Study anytime, no internet required

Develop skills

Enhance the development of the practical skills listed below

Sabi database design well: Make correct schemas wit' primary and foreign keys.

Write advanced queries: Use CTEs, window functions, and nested queries.

Make SQL performance dey top: Put indexing and check execution plans.

Handle data well: Do bulk operations and manage records.

Follow SQL correct way to do things: Make sure security dey tight and use di latest SQL features.

Suggested overview

Workload: between 4 and 360 hours

Before getting started, you can adjust the chapters and the workload.

  • Choose which chapter to begin with
  • Add or remove chapters
  • Increase or decrease the course workload

Examples of chapters you can include

You'll be able to create more chapters like the examples below

This is a free course, focused on personal and professional growth. It is not equivalent to a technical, undergraduate, or postgraduate course, but offers practical and relevant knowledge for your professional journey.