“show databases” works.

“show users” doesn’t.

You need to query a system table.

If you drop a user, and the user doesn’t exist, you et this error;

“ERROR 1396 (HY000): Operation DROP USER failed for ‘datamail’@’%'”

That’s what mySQL says when it means “can’t find user”.

I also discovered that mysql records in plaintext all commands to .mysql_log.

Including the passwords used to create users.