12 SQL practice questions in our Databricks collection, part of our 188-question bank across 23 companies. Write SQL against practice datasets and get checked in your browser. Free, no card or trial.
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1 Easy · 6 Medium · 5 Hard
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Analyze March 2026 transactions by subscription tier. For active users, calculate active user count, average transaction amount, total revenue, and transaction count per tier. Return subscription_tier, active_user_count, avg_transaction_amount, total_revenue, transaction_count. Order by total_revenue descending.
Calculate the 7-day rolling average of daily active users per workspace for March 2026. Return workspace_id, region, session_date, daily_active_users, rolling_7d_avg. Order by workspace_id, session_date.
For March 2026, identify workspaces with total cluster costs > $500 and failure rates > 5%. Return workspace_id, customer_id, total_cost, run_count, failure_rate_pct, avg_compute_hours. Order by failure_rate_pct descending.
12 Databricks problems, each with its own dataset. Click one and you’re in the workspace, free, right in your browser.
Your dataset
user_id (INTEGER) · workspace_id (INTEGER) · created_date (DATE) · subscription_tier (VARCHAR) · is_active (BOOLEAN)
transaction_id (INTEGER) · user_id (INTEGER) · transaction_date (DATE) · amount_usd (FLOAT) · transaction_type (VARCHAR)
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Practice Databricks SQL free188 SQL practice questions. 23 companies. Free access to every problem.