I have an AWS SQL Server instance, and I have accidentally given my user (and the only user I have access to) db_denydatawriter and db_denydatareader role on our primary database, which stops me from making any other changes to the db permissions to remove them.
Remembering this an AWS db instance, and the user I have locked out is the only user I have access to.
Surely it can't be this simple to ruin a database?
jcdbadmin is the user in question