DECLARE @TracePath nvarchar(256)

SELECT @TracePath =  [path]
  FROM master.sys.traces

SELECT *
  FROM ::fn_trace_gettable (@TracePath,default)

SELECT T.EventID
     , T.ColumnID
     , E.Name [EventDescription]
     , C.Name [ColumnDescription]
  FROM ::fn_trace_geteventinfo(1) T
 INNER JOIN sys.trace_events E ON T.EventID = E.trace_event_id
 INNER JOIN sys.trace_columns C ON T.columnid = C.trace_column_id

SELECT T.EventID
     , E.Name [EventDescription]
     , COUNT(*) [DataColumnCount]
  FROM ::fn_trace_geteventinfo(1) T
 INNER JOIN sys.trace_events E ON T.EventID = E.trace_event_id
 GROUP BY T.EventID, E.Name