Returns information about whether the user has access to the specified database.
HAS_DBACCESS ( 'database_name' )
Is the name of the database for which the user wants access information. database_name is sysname.
HAS_DBACCESS returns 1 if the user has access to the database, 0 if the user has no access to the database, and NULL if the database name is not valid.
Requires membership in the public role.
The following example tests whether current user has access to the AdventureWorks database.
SELECT HAS_DBACCESS('AdventureWorks'); GO