Best DataLemur Alternatives for SQL and Data Interviews (2026)
Eight DataLemur alternatives for SQL practice and full data interview loops by company and role, with prices checked Oct 18, 2026.
Which one should you use?
DataLemur is a cheap, focused SQL practice site for data interviews, built by Nick Singh, co-author of Ace the Data Science Interview. It's a great SQL warm-up. People look elsewhere when they need more questions, more languages, company-specific prep or help with the rounds beyond SQL. These are the alternatives I'd look at:
I run Dataford, so keep that in mind. I link to each site's own pages so you can check prices and features yourself.
Why people look for a DataLemur alternative
Comparison table
| Site | Best for | Company-specific content | SQL | Beyond SQL | Price (checked Oct 18, 2026) |
|---|---|---|---|---|---|
| DataLemur | Cheap, focused SQL drills | Company-style SQL questions | PostgreSQL, MySQL | Some stats and ML | $15/month, $60/year or $300 lifetime with coaching and a book |
| Dataford | Prep for a specific company and role | Loop guides and real questions by company and role | Yes, where the loop needs it | Product sense, stats, behavioral; AI mocks; 1:1 coaching | $29/month or $89/year; coaching about $109 to $339 per session |
| StrataScratch | SQL and Python volume | Company-tagged questions | Several dialects, plus Python and R | Non-coding questions; AI mocks on Premium | $24/month, $139/year or $289 lifetime |
| Interview Query | Full data science loop | Company guides | Yes | Product sense, stats, A/B testing, ML; mocks in premium | Monthly, yearly and $299 lifetime plans |
| DataInterview | Courses plus AI practice | Company-tagged questions | Yes | Courses; AI mocks on higher tiers | Course $20/month billed $240/year; Course + AI $30/month billed $360/year |
| Analyst Builder | Courses plus practice for analysts | Light | MySQL, PostgreSQL, MSSQL | Excel, Tableau, Power BI courses | Free plan; $34/month or $20.75/month billed yearly |
| LeetCode SQL | Free SQL fundamentals | Company tags on Premium | MySQL and others | Little | SQL 50 free; Premium $35/month or $159/year |
| PracHub | Recent real questions | Questions by company and role | Yes | Other rounds too; AI Mentor on Premium | Most questions free; Premium $27.99/month, $79.99 per 3 months or $119.99/year |
| HackerRank | Free practice | No | Yes | Coding challenges | Free for candidates |
The table puts 9 options side by side on best for, company-specific content, sql and beyond sql, with price in the last column. Analyst Builder, HackerRank each have at least one red cell, a column they don't cover. Dataford is the row built around one company and role, with loop guides, real questions, AI mocks and 1:1 coaching, at $29 a month or $89 a year. Read across your weakest round first, then check price.
Dataford
Dataford is interview prep for a specific company and role, across 80+ roles and 15,000+ companies. You pick the loop, like Data Analyst at Amazon or Data Engineer at Meta, and get a guide to each round, real questions past candidates were asked, AI mock interviews and SQL and Python practice where the loop needs it.
StrataScratch
StrataScratch has a large bank of company-tagged SQL and Python questions (1,000+ across SQL, Python and R), supports several SQL dialects, has non-coding data questions and hosted data projects, and offers AI mock interviews on Premium.
Interview Query
Interview Query covers the full data science loop: SQL, Python, statistics, A/B testing, product sense, ML, take-homes and company guides, with mock interviews in premium.
DataInterview
DataInterview is a course-led platform with a question bank, coding practice and AI mock interviews on its higher tiers.
Analyst Builder
Analyst Builder bundles courses in SQL, Excel, Tableau, Power BI and Python with practice questions in MySQL, PostgreSQL and MSSQL.
LeetCode SQL
LeetCode's SQL 50 study plan and Database problem set are the free default for SQL syntax practice.
PracHub
PracHub publishes real interview questions by company and role, including SQL and data questions, with written solutions.
HackerRank
HackerRank has a free SQL practice track and an Interview Preparation Kit. Many companies use HackerRank for online assessments, so the editor is worth knowing.
How I'd choose
You usually don't need two paid SQL tools. Pick one, and add Dataford when you have a specific loop booked.
Frequently asked questions
What is the best DataLemur alternative?
For a specific company and role, Dataford, because it covers the whole loop. For more SQL and Python questions, StrataScratch.
Is DataLemur enough for data science interviews?
It's enough for many SQL screens. Most data science loops also test product sense, statistics and experimentation, so you'll need another resource for those.
What is a free alternative to DataLemur?
LeetCode's SQL 50 study plan and HackerRank's SQL track are free. DataLemur also has a free account.
How much does DataLemur cost?
As of Oct 18, 2026, $15/month, $60/year, or $300 lifetime with a coaching session and a signed book.
How much does Dataford cost?
$29/month or $89/year, with the same features on both plans.
Does Dataford offer 1:1 coaching?
Yes. Dataford has 40+ coaches with a verified-employer badge who work at companies like Meta, Google, Amazon, Databricks and Stripe. Sessions are 60-minute mock interviews or strategy calls, about $109 to $339 per session, with written feedback afterward. Sessions are anonymous and nothing is recorded. Coaching launched on October 17, 2026 with 40+ coaches, and we expect to pass 500 in the next couple of months as we add a more human side to prep on Dataford. Every session runs inside Dataford itself, with no separate Zoom or Google Meet link, so booking, the mock and the feedback all sit in one place.
Prices and features checked Oct 18, 2026. I run Dataford. If something here is out of date, email me and I'll fix it.