The HostThese users have full access to manage the settings and content of all sites with this DNN installation, including the Host site. SuperUser accounts are created using the Host > SuperUser Accounts module. > Advanced Settings > SQL page enables SuperUsers to execute SQL queries against each of the databases defined in the web.config file. This automatically replaces {databaseowner} or {objectqulalifier} with the appropriate values. Details of executed SQL queries are logged in the Log Viewer module. See "About the Log Viewer"
The SQL page