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schema

Tables

students
enrollments
courses
departments
query.sqlRun
123456789
SELECT
  s.name, s.gpa,
  COUNT(e.course_id) AS courses
FROM students s
LEFT JOIN enrollments e
  ON s.id = e.student_id
WHERE s.gpa > 3.5
GROUP BY s.id, s.name
ORDER BY gpa DESC
results5 rows
namegpacnt
Priya S.3.926
Arjun M.3.855
Neha G.3.787
Rahul P.3.624
AI
Students with GPA > 3.5?
Here's a query with LEFT JOIN...
AI typing...
Features

Everything you need to master SQL

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Real PostgreSQL Engine

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AI SQL Assistant

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200+ SQL Topics

Structured curriculum from SELECT basics to window functions and CTEs.

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01

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Create your account in 30 seconds. Get 10 AI credits instantly.

SELECT name, gpa
FROM students
WHERE gpa > 3.5;
02

Write SQL

Use the in-browser PostgreSQL playground with sample data or import your own.

User: Explain this JOIN
AI: This LEFT JOIN...
✓ Credits: 9 left
03

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Generate, explain, fix, and review queries using your AI credits.

■■■■■■░░░░ 47%
Basics: Complete ✓
JOINs: In progress
04

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Your AI SQL tutor, always ready

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Review

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AI Generated SQL
12345678910
SELECT
  s.name,
  s.gpa,
  COUNT(e.course_id) AS courses
FROM students s
LEFT JOIN enrollments e
  ON s.id = e.student_id
WHERE s.gpa > 3.5
GROUP BY s.id, s.name, s.gpa
ORDER BY s.gpa DESC;
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Testimonials

Loved by SQL learners

Ira SQL Pro helped me clear two SQL interview rounds in one week. The AI fix feature is a lifesaver.

RS
Rahul S.Backend Developer

Finally a SQL playground that feels professional. The explain feature makes complex joins so easy to understand.

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Priya M.Data Analyst

I went from knowing nothing about SQL to writing window functions in 3 days. The tutorial + AI combo is incredible.

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