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Readiness test · Free · No sign-up required

SQL Readiness Test — Are You Ready for Your Interview or Exam?

Find out if you're ready for your SQL job interview or certification. 25 questions, instant score, no sign-up required.

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

Instant resultsTopic breakdownWeak area detectionPass likelihood

What this test covers

This free SQL readiness test gives you a data-driven answer to the question most data professionals dread: "Am I actually ready?" You'll answer 25 exam-style questions that mirror what employers test in data analyst and data engineer interviews and what SQL certifications cover. The test spans core SQL — SELECT and filtering, aggregations, JOINs, subqueries, NULL handling, and constraints. When you finish, you get an instant readiness score from 0 to 100, a pass likelihood estimate, a topic-by-topic accuracy breakdown, and a list of your exact weak areas. No sign-up, no email required.

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

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 readiness test?
The full test (Hard mode) has 25 questions across 7 topic areas. Easy mode focuses on SELECT and filtering; Medium adds aggregates and JOINs.
What does the readiness score mean?
Your score is a number from 0 to 100. 85–100 = Exam Ready, 70–84 = Almost Ready, 50–69 = At Risk, 0–49 = Not Ready. Each band comes with a pass likelihood percentage.
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 happens after I finish?
You get an instant readiness score, your pass likelihood, a topic-by-topic accuracy breakdown, and a list of your weak areas so you know exactly what to review next.

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