Skip to main content
Module 1 free

SQL Fundamentals

Learn databases and SQL visually — tables, CRUD, filters, aggregates, joins, subqueries, views, indexes, transactions, procedures, normalization, and four real projects.

Continue · Welcome to SQLView full curriculum

Your Outcome

Students who complete this course receive

  • Certificate
  • Projects
  • Skills

4 projects. 10 skills.

12 modules·126 lessons·4 projects·Earn your certificate

What you'll learn

  • Explain what databases and tables are and why apps store data in rows and columns
  • Write SELECT queries with WHERE, ORDER BY, GROUP BY, and HAVING confidently
  • Perform CRUD operations safely with INSERT, UPDATE, and DELETE
  • Join tables, write subqueries, and use aggregate functions for reports
  • Apply views, indexes, transactions, and normalization basics
  • Build Student, Hospital, Banking, and E-commerce database projects

Where this course fits

Beginner SQL — visual tables, interactive playgrounds, and four portfolio databases.

Earn while learning

Invite a friend. Both of you receive ₹50 Avora Credits after their first successful purchase.

Invite friends

Frequently asked questions

No. Module 1 starts with what a database is. Coding experience helps later, but it is not required to begin.

Skills You'll Gain

Practical skills you can list on your resume.

  • Relational databases
  • SQL SELECT & filtering
  • CRUD operations
  • Aggregates & grouping
  • Joins & subqueries
  • Views & indexes
  • Transactions
  • Stored procedures intro
  • Normalization
  • Schema design projects

Module 1 preview lessons are free to start.

Full curriculum

Every module and lesson is listed — nothing hidden behind a paywall.

  1. 1Welcome to SQL🧠 Theory
  2. 2What is a Database?🧠 Theory
  3. 3Databases vs Spreadsheets🧠 Theory
  4. 4What is SQL?🧠 Theory
  5. 5Tables, Rows, and Columns🧠 Theory
  6. 6Schemas and Data Types🧠 Theory
  7. 7Primary Keys🧠 Theory
  8. 8Foreign Keys Intro🧠 Theory
  9. 9NULL Means Unknown🧠 Theory
  10. 10Module 1 Recap🧠 Theory

🏆 What You'll Get

Finish the course and walk away with proof employers can verify.

  • Digital Certificate of Completion

    A shareable credential that proves you finished the course.

  • Verifiable Certificate ID

    Every certificate includes a unique ID employers can check.

  • Downloadable PDF

    Save and print a polished PDF anytime after you earn it.

  • LinkedIn Ready

    Add it to your profile and share your achievement with one click.

  • Lifetime Verification

    Public verification stays available so your credential remains trusted.

Certificate preview

A sample of the credential you'll earn — with your name after completion.

YOUR NAME HERE

SQL Fundamentals

AVL-SQL-2026-000000

July 11, 2026

Scan to Verify

avora.ai/verify

Relational databases

SQL SELECT & filtering

CRUD operations

Aggregates & grouping

Joins & subqueries

Views & indexes

92%

Mastery

Sample certificate for SQL Fundamentals. Display ID AVL-SQL-2026-000000. Issue date July 11, 2026.

How to Earn Your Certificate

Clear requirements — no surprises when you finish.

  1. Step 1

    Complete all lessons

    Finish every lesson in the curriculum.

  2. Step 2

    Complete coding challenges

    Solve the playgrounds and practice tasks.

  3. Step 3

    Pass final assessment

    Show you can apply what you learned.

  4. Step 4

    Achieve required mastery

    Meet the course mastery threshold to unlock your certificate.

Reviews & ratings

From verified learners who made meaningful progress in this course.

Sign in to leave a course review.

🚀 Where You'll Use These Skills

Concrete ways this course pays off beyond the classroom.

  • Build Personal Projects

    Ship small sites and pages you can show friends and employers.

  • Create Portfolio Websites

    Turn course builds into portfolio pieces with real structure.

  • Prepare for Technical Interviews

    Practice explaining markup, layout, and browser basics with confidence.

  • Foundation for Advanced Courses

    Unlock CSS, JavaScript, and project courses on a solid base.

By the end of this course you will be able to

  • Write production-shaped SELECT and CRUD queries
  • Design schemas with keys and normalization basics
  • Join and aggregate data for real reports
  • Ship Student, Hospital, Banking, and E-commerce projects

Skill level & time

Know what you're signing up for.

Difficulty

BeginnerIntermediateAdvanced
Estimated completion
~47h to complete
Estimated study hours
About 47 study hours
Difficulty
Beginner

💼 Portfolio Ready

Projects completed in this course can be added to your portfolio — proof of skills employers can see, not just a course title.

4 projects you can showcase

Student Database

Portfolio-ready build from this course.

Module 12 — Capstone Projects

Hospital System

Portfolio-ready build from this course.

Module 12 — Capstone Projects

Banking Database

Portfolio-ready build from this course.

Module 12 — Capstone Projects

E-commerce Database

Portfolio-ready build from this course.

Module 12 — Capstone Projects

Continue Your Journey

Recommended next Avora courses after this one.

  1. This course
  2. Python
  3. Java
  4. Git & GitHub

How the course progresses

A high-level view of how your knowledge grows.

  1. Foundations

    Databases, tables, SELECT, WHERE, and ORDER BY

  2. CRUD & aggregates

    Insert, update, delete, COUNT/SUM/AVG, GROUP BY, HAVING

  3. Joins & advanced SQL

    Joins, subqueries, views, indexes, and transactions

  4. Capstone projects

    Student, Hospital, Banking, and E-commerce databases