I've deleted a key of a service account, but I can still run query on BigQuery with that key.

[reflow]

Is it possible?

I deleted only the key not the service account, but GCP shows error in [Service accounts] tab and the service account is gone.

And I that deleted key still works well.

[kolban · Accepted solution]

I'm not following.  If we delete a service account key, the service account should still remain but I seem to sense in your comments that the service account is gone.  I am also sensing that you are saying that the deleted key still works.  Can you elaborate on what command you are running that still references the now deleted key?

[reflow]

Sorry, it was my mistake.

[kolban]

No problems my friend ... PLEASE keep coming back if/when you have questions.  Were here to (try) and help 🙂