Databases & SQL
Design relational databases and write useful SQL queries for reliable application data.
Mate Meskhi · Backend Development · Intermediate · 4.5 · 75 students

Description
This intermediate course develops practical relational database skills. Students model entities and relationships, create normalized tables, query and aggregate data, join related records, use transactions, understand indexes, and analyze common performance concerns.
Curriculum
- Tables, Keys, and Relationships (17 min)
- Normalization Basics (15 min)
- SELECT, Filtering, and Aggregation (18 min)
- Joining Related Tables (18 min)
- Transactions and Data Integrity (17 min)
- Indexes and Query Performance (17 min)
Reviews
I completed the course successfully and would recommend it to other students.
The material was engaging, consistent, and easy to follow.
A valuable course with concise lessons and useful exercises.
Good structure, helpful content, and an appropriate level of difficulty.
I completed the course successfully and would recommend it to other students.
The material was engaging, consistent, and easy to follow.
A valuable course with concise lessons and useful exercises.
Good structure, helpful content, and an appropriate level of difficulty.
I completed the course successfully and would recommend it to other students.
The material was engaging, consistent, and easy to follow.