← All courses
Data

Databases & SQL

Where all the real data lives, and how to work with it well.

Basic · ₹880 Advance · ₹2,600 Professional · ₹6,499

Databases & SQL — Basic

Query a database confidently, even if you have never written SQL.

18 study hours 150 pages 7 modules PDF ebook

What is inside

01 What a database is and why files are not enough
02 Tables, rows, columns and keys
03 SELECT, WHERE, ORDER BY, LIMIT
04 JOINs explained visually
05 Aggregation: COUNT, SUM, GROUP BY
06 Inserting, updating and deleting safely
07 Installing MySQL and using phpMyAdmin

By the end you can

  • Write SQL to answer real questions
  • Join data across multiple tables
  • Modify data without breaking anything