If you want to check whether the sales order’s date created and the line system notes date are the same or not, we need to create a formula text field in the saved search.
formulatext: CASE WHEN (TO_CHAR({datecreated}, 'DD/MM/YYYY HH24:MI')=TO_CHAR({linesystemnotes.date}, 'DD/MM/YYYY HH24:MI')) THEN 'Yes' ELSE 'No' END
When we use this formula in the saved search result, then it will shows the 'Yes' if both the dates, hour, minutes are same.