oc_id, snapshot_id, event_id, account_id, position_id, group_id, event_time, event_code, event_title, event_remark, created_by, created_at, updated_by, updated_at A.oc_id, A.snapshot_id, A.event_id, A.account_id, A.position_id, A.group_id, A.account_id_to, A.position_id_to, A.group_id_to, B.account_name, C.position_name, D.group_name, A.event_time, A.event_code, A.event_title, A.event_remark, A.created_by, A.created_at