SQL
SELECT, JOINs, GROUP BY, subqueries, window functions - the SQL every backend candidate should know cold.
Fresher · 30 min
20 questions
Confidence build - easy-heavy mix, plenty of time per question.
SELECT, JOINs, GROUP BY, subqueries, window functions - the SQL every backend candidate should know cold.
Confidence build - easy-heavy mix, plenty of time per question.