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SQL Refresher Course
Make your SQL skills strong again with our SQL Brain Sharpening Course. This course is for people who work with computers and want to know more about how to use database. You will learn how to plan database, how to write good SQL questions, and how to make your database run fast. You will also learn how to change data easily, how to ask hard questions, and how to keep up with the new things in SQL. This short, good course will help you solve real problems and make sure you stay on top of your game.
- Learn how to plan database well: Make good plans with primary and foreign keys.
- Write hard questions: Use CTEs, window functions, and questions inside questions.
- Make SQL run fast: Use indexing and look at how the computer is running the questions.
- Change data easy: Do big changes and take care of records.
- Do SQL the best way: Make sure it is safe and use the newest things in SQL.

from 4 to 360h flexible workload
certificate recognized by MEC
What will I learn?
Make your SQL skills strong again with our SQL Brain Sharpening Course. This course is for people who work with computers and want to know more about how to use database. You will learn how to plan database, how to write good SQL questions, and how to make your database run fast. You will also learn how to change data easily, how to ask hard questions, and how to keep up with the new things in SQL. This short, good course will help you solve real problems and make sure you stay on top of your game.
Elevify advantages
Develop skills
- Learn how to plan database well: Make good plans with primary and foreign keys.
- Write hard questions: Use CTEs, window functions, and questions inside questions.
- Make SQL run fast: Use indexing and look at how the computer is running the questions.
- Change data easy: Do big changes and take care of records.
- Do SQL the best way: Make sure it is safe and use the newest things in SQL.
Suggested summary
Before starting, you can change the chapters and workload. Choose which chapter to start with. Add or remove chapters. Increase or decrease the course workload.What our students say
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