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Databases & SQL

Design relational databases and write useful SQL queries for reliable application data.

Mate Meskhi · Backend Development · Intermediate · 4.5 · 75 students

Databases & SQL

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.

SQL Databases Query Optimization

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

Emma Reed 4

I completed the course successfully and would recommend it to other students.

Emma Parker 4

The material was engaging, consistent, and easy to follow.

Emma Collins 4

A valuable course with concise lessons and useful exercises.

Emma Carter 5

Good structure, helpful content, and an appropriate level of difficulty.

Liam Cooper 5

I completed the course successfully and would recommend it to other students.

Liam Morgan 5

The material was engaging, consistent, and easy to follow.

Liam Reed 5

A valuable course with concise lessons and useful exercises.

Liam Collins 4

Good structure, helpful content, and an appropriate level of difficulty.

Olivia Foster 4

I completed the course successfully and would recommend it to other students.

Olivia Hayes 4

The material was engaging, consistent, and easy to follow.

60 review(s) · page 5 of 6