Beginner friendlyTeens & Adults
Database fundamentals (Relational)
Design and query relational databases properly — schemas, SQL, joins and indexes.
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What you'll learn
- Design a normalised schema
- Write confident SQL queries
- Use joins and subqueries correctly
- Understand indexes and query plans
- Apply transactions and constraints
- Avoid common modelling mistakes
What the course covers
6 modules · 24 topics, taught in live sessions with your tutor
- Tables, rows and columns
- Keys
- Relationships
- Why normalisation matters
Requirements
- No database experience needed
- A computer able to run a database locally
- Basic logical thinking
Description
Most application bugs that look like code problems are actually data modelling problems. This course teaches you to design a schema that makes bad states impossible, and to query it efficiently.
Who this course is for
- Developers who copy SQL without understanding it
- Analysts who need to query data directly
- Students preparing for database courses
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