@EndUserText.label : 'Fine dust reading'
@AbapCatalog.enhancement.category : #NOT_EXTENSIBLE
@AbapCatalog.tableCategory : #TRANSPARENT
@AbapCatalog.deliveryClass : #A
@AbapCatalog.dataMaintenance : #RESTRICTED
define table {{p}}reading {
  key client     : abap.clnt not null;
  key station_id : abap.char(10) not null;
  key reading_no : abap.int4 not null;
  pm_value       : abap.dec(5,1);
}