HAS_DBACCESS (Transact-SQL)

'database_name'

The name of the database for which the user wants access information. database_name is sysname.

int

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.

HAS_DBACCESS returns 0 if the database is offline or suspect.

HAS_DBACCESS returns 0 if the database is in single-user mode and the database is in use by another user.

Requires membership in the public role.

The following example tests whether current user has access to the AdventureWorks2008R2 database.

SELECT HAS_DBACCESS('AdventureWorks2008R2');
GO

Reference