Your choices

Cookies and local storage

SQL.tn separates storage required for the service from optional audience measurement.

Necessary cookies

Session cookies secure sign-in and account access. They are required for the requested functionality and are not used for advertising.

Local learning storage

The browser may keep local progress, language preferences and SQL environment data to support resuming and operation outside the application database.

Optional audience measurement

With consent, SQL.tn measures pages and activities using a pseudonymous ID. When PostHog is enabled, filtered events go from our server to PostHog in the EU, without Google Analytics alongside it. No names, emails, SQL, results or form content are transmitted. Errors are grouped by category, without messages or stack traces. After login, your consented activity is linked to a pseudonymous profile shared across devices, without names or emails. Session recording remains disabled in production. Your choice and consent cookie last 180 days. Withdraw using the button above without losing your account or progress; pending events are discarded. Contact us about data already transmitted.

Duration and control

Duration depends on the storage and browser settings. You can delete cookies and local data from your browser settings; this may sign you out or remove local progress.