Who has accessed my SQL Server

SELECT I.NTUserName

     , I.loginname

     , I.SessionLoginName

     , I.databasename

     , Min(I.StartTime) as first_used

     , Max(I.StartTime) as last_used

     , S.principal_id

     , S.sid

     , S.type_desc

     , S.name

FROM sys.traces T CROSS Apply ::fn_trace_gettable(T.path, T.max_files) I LEFT JOIN sys.server_principals S ON CONVERT(VARBINARY(MAX), I.loginsid) = S.sid

WHERE T.id = 1 And I.LoginSid is not null

Group By I.NTUserName, I.loginname, I.SessionLoginName, I.databasename, S.principal_id, S.sid

     , S.type_desc

     , S.name