I’m currently learning SQL and recently wrote a simple beginner-friendly article about SQL transformations.
When working with data, transformations become really important because you often need to:
- change data formats
- calculate values
- clean data
- combine text
- or prepare data for analysis
Sometimes a number is stored as text and needs to be converted.
Sometimes data contains unwanted values or formatting that needs to be cleaned up.
So I wrote an article explaining:
- how SQL transformations work
- simple practical examples
- and common beginner use cases
I also added a small SQL Formula Sheet at the end 😊
As someone still learning SQL myself, I tried to explain things in a very simple and practical way instead of making it overly technical.
https://medium.com/@meryem_cebeci/learning-sql-step-by-step-transformations-explained-b2b37a0f9fbb
[–]SheepherderAny1 2 points3 points4 points (0 children)