Remotely Log Off Remote Desktop Users

How to query for users on a machine

qwinsta /server:<serverName>  OR  quser /server:<serverName>

How to log a user off of a machine

logoff <sessionId> /server:<serverName>

Dependency information on my table

To find out what depends on the table you are about to alter or drop.

SELECT referencing_schema_name, referencing_entity_name
FROM sys.dm_sql_referencing_entities(' schema_name.referenced_entity_name ' , ' <referenced_class> ' )

additional information<
{referenced_class> ::=OBJECT| TYPE
| XML_SCHEMA_COLLECTION| PARTITION_FUNCTION}