Kill all sessions using database

DECLARE @Stmt VARCHAR(1000)
SET @Stmt = ''    

SELECT @Stmt = @Stmt + 'KILL ' + CONVERT(NVARCHAR(3), spid) + '; '  
FROM master.dbo.sysprocesses   
WHERE db_name(dbid) = 'TestDb' AND dbid <> 0 and spid <> @@spid   

EXECUTE(@Stmt)
GO