These scalar functions return information about current configuration option settings.
| @@CONNECTIONS | @@OPTIONS |
| @@DATEFIRST | @@NESTLEVEL |
| @@DBTS | @@REMSERVER |
| @@LANGUAGE | @@SPID |
| @@LANGID | @@SERVERNAME |
| @@LOCK_TIMEOUT | @@SERVICENAME |
| @@MAX_CONNECTIONS | @@TEXTSIZE |
| @@MAX_PRECISION | @@VERSION |