Free MySQL online compiler

MySQL-style SQL playground

Practice SELECT / subquery style queries quickly, format them, then prove skills on the SQL coding track.

Open MySQL runner SQL coding Problems explorer

1 Try Run MySQL
2 Tool Format & mock
3 Prove Coding / assess

MySQL scratchpad

Free run — no login. Rate-limited. Same runner as the multi-language hub.

Source

SELECT 'Hello from Toolliyo MySQL playground' AS greeting;
SELECT id, name FROM (
  SELECT 1 AS id, 'Ada' AS name
  UNION ALL SELECT 2, 'Grace'
  UNION ALL SELECT 3, 'Linus'
) AS users
WHERE id >= 2
ORDER BY name;

stdin (optional)

Output

Press Run to execute.

After you try MySQL

Database academy SQL coding Problems explorer

How to use this MySQL compiler

Write a SELECT (or small script) in the scratchpad.
Optionally format with the SQL Formatter tool.
Run and read results / errors.
Open SQL coding problems for judged drills.

Tips

Dialect may differ slightly from production MySQL — keep queries portable.
Use Mock Data Generator to invent rows before joins.
Database tutorials cover MySQL depth after you prototype here.

Tools for this stack

Format, mock, or diff — then come back and re-run.

Full toolbench

SQL Formatter Beautify queries, then run them in the SQL scratchpad. Mock Data Generate CSV / JSON / SQL rows for local experiments. JSON Formatter Pretty-print API payloads before you paste them into code.

MySQL playground FAQ

Is this real MySQL Server?

It is a lightweight SQL engine for learning SELECTs. Production MySQL features may differ — use coding practice for schema drills.

Can I CREATE TABLE?

Keep queries simple here. Prefer coding-practice SQL problems with prepared schemas.

How is this different from the SQL compiler?

Same Try → Tool → Prove loop with MySQL-focused samples so MySQL learners find it in the Compilers menu.

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