BeginnerSQLDatabasesMySQL

SQL & Database Design

Master the language of data — from your first SELECT to designing real databases.

Digitalshala Faculty6 weeksEnglish + Telugu6 lessons

Lessons unlock after the Digitalshala team assigns you this course.

SQL & Database Design

About this course

SQL is asked in nearly every technical interview. Learn to query, filter, join and aggregate data on real databases (MySQL/PostgreSQL), then go deeper into database design, normalisation and performance so you can build schemas — not just query them.

What you'll learn

  • Write confident SQL: SELECT, JOIN, GROUP BY, subqueries
  • Design clean database schemas from scratch
  • Understand keys, indexes and normalisation
  • Work with MySQL and PostgreSQL
  • Crack SQL interview questions