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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

Sophia Reed 5

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

Sophia Parker 5

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

Sophia Collins 5

A valuable course with concise lessons and useful exercises.

Sophia Carter 4

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

Mason Cooper 4

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

Mason Morgan 4

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

Mason Reed 4

A valuable course with concise lessons and useful exercises.

Mason Collins 5

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

Ava Foster 5

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

Ava Hayes 5

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

60 review(s) · page 3 of 6