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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

Mia Cooper 4

A valuable course with concise lessons and useful exercises.

Mia Reed 5

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

Mia Carter 5

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

Lucas Brooks 5

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

Lucas Foster 5

A valuable course with concise lessons and useful exercises.

Lucas Cooper 4

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

Lucas Collins 4

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

Lucas Bennett 4

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

Lucas Carter 4

A valuable course with concise lessons and useful exercises.

Sophia Foster 5

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

60 review(s) · page 2 of 6