First run

Run local SQL, then keep moving.

SQL Trail executes Run and Check SQL in this browser, stores guest progress locally by default, and works without PostgreSQL or account configuration. This phase has no telemetry or analytics SDK and no remote SQL execution for arbitrary learner queries.

Complete Course

Follow the full beginner-to-project path.

Analytics

Prioritize reporting, grouping, and windows.

Engineering

Emphasize joins, data repair, and constraints.

Interview Practice

Reach challenge sessions sooner.

First query

select customer_id, customer_name from customers order by customer_id;

Immediate result explanation

Run shows visible rows. Check compares the exact contract against hidden variants.

Tiny edit task

Add the city column and keep the output ordered by customer_id.

Transition to M00/M01 stays inside the app workspace, not a marketing page.

Open first workspace Start optional diagnostic Skip diagnostic

Two-step workspace orientation

Run Execute visible SQL without grading.
Check Submit against hidden variants.
Schema Inspect tables, keys, and sample rows.
Hints Open one hint level at a time.

Open display settings