Technical Tutorials on MS Dynamics Axapta 2012,D365 FnO

I want to highlight Query to get workflow last comment in Ax 2012. You can use ,WorkflowTrackingTable,WorkflowTrackingStatusTable  and WorkflowTrackingCommentTable   to get Last comment entered by used on submitting or approving workflow for module WorkflowTrackingTable workflowTrackingTable; WorkflowTrackingStatusTable workflowTrackingStatusTable; WorkflowTrackingCommentTable workflowTrackingCommentTable; PurchTable PurchTable; select PurchTable where PurchTable.PurchId ="PO13000003"; select ContextCompanyId, ContextTableId, ContextRecId from workflowTrackingStatusTable where workflowTrackingStatusTable.ContextCompanyId == curext() && workflowTrackingStatusTable.ContextTableId == PurchTable.TableId && workflowTrackingStatusTable.ContextRecId == PurchTable.RecId join firstonly TrackingId, CreatedDateTime from workflowTrackingTable order by CreatedDateTime desc where workflowTra...