P_RU_EXTNUMBYDEFAULT1

@VDM.private: true
@VDM.viewType: #COMPOSITE
@AbapCatalog.sqlViewName: 'PRUEXTNUMBYDEF1'
@AbapCatalog.compiler.compareFilter: true
@AbapCatalog.preserveKey: true
@ClientHandling.algorithm: #SESSION_VARIABLE
@AccessControl.authorizationCheck: #NOT_REQUIRED
define view P_RU_ExtNumByDefault1
  as select from I_RU_ExtNumByDefault

{
  key CompanyCode,
  key AccountingDocumentType,
      ExtDocNmbrAndDteAreFilled,

      case
          when CompanyCode <> '' and AccountingDocumentType <> ''
               then 3
          when CompanyCode <> '' and AccountingDocumentType = ''
               then 2
          when CompanyCode = '' and AccountingDocumentType <> ''
               then 1
          else 0
       end as Rank
}