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Readiness test · Free · No sign-up required

Free SQL Practice Test

Test your SQL knowledge with 25 exam-style questions. Get an instant readiness score, see your weak areas, and know if you're ready for your SQL exam or interview.

One question at a time, explained as you go · no sign-up

Instant resultsTopic breakdownWeak area detectionPass likelihood

What this test covers

This test covers core SQL concepts from basic SELECT queries through to advanced JOINs, subqueries, and constraints. Aligned with what data roles and SQL certifications actually test.

  • SELECT & Filtering (WHERE, LIKE, BETWEEN)
  • Aggregates (COUNT, SUM, AVG, GROUP BY)
  • HAVING vs WHERE
  • JOINs (INNER, LEFT, RIGHT)
  • NULL handling & Constraints
  • Subqueries & Nested SELECT
  • ORDER BY & LIMIT

How it works

01

Pick your difficulty

Choose Easy, Medium, or Full test depending on where you are in your learning.

02

Answer questions

One question at a time. Click an answer and get instant feedback with a full explanation.

03

Get your score

See your readiness score (0–100), pass likelihood, and a topic-by-topic breakdown.

Frequently asked questions

How many questions are in the SQL practice test?
The full test (Hard mode) has 25 questions across 5 topic areas. Easy mode focuses on SELECT and filtering; Medium adds aggregates and JOINs.
Which SQL dialect do the questions use?
Questions use standard SQL syntax (ANSI SQL) that works across PostgreSQL, MySQL, SQLite, and SQL Server. No vendor-specific functions are tested.
Is this good prep for data analyst or data engineer interviews?
Yes. SQL is tested in almost every data role interview. This test covers the core concepts that come up most frequently in technical screenings.
Is it free? Do I need to sign up?
Completely free, no account needed. Just pick a difficulty and start.
What do I get at the end?
An instant readiness score (0–100), your pass likelihood, a topic-by-topic accuracy breakdown, and a list of weak areas so you know exactly what to review.

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