Crear vista de servicios de datos ABAP (CDS) en ABAP local

Su código de entidad CDS debería verse así:

@AbapCatalog.sqlViewName: 'ZCTRAVEL_XXX'
@AbapCatalog.compiler.compareFilter: true
@AbapCatalog.preserveKey: true
@AccessControl.authorizationCheck: #NOT_REQUIRED
@EndUserText.label: 'Consumption view from /DMO/I_TRAVEL_U'
@Metadata.allowExtensions: true
@Search.searchable: true

define view Z_C_TRAVEL_DATA_XXX
  as select from /DMO/I_Travel_U
{

      ///DMO/I_Travel_U


  key TravelID,
      AgencyID,
      CustomerID,
      BeginDate,
      EndDate,
      BookingFee,

      @Semantics.amount.currencyCode: 'CurrencyCode'
      TotalPrice,

      @Semantics.currencyCode
      CurrencyCode,

      @Search.defaultSearchElement: true
      @Search.fuzzinessThreshold: 0.90
      Memo,
      Status,
      LastChangedAt,

      /* Associations */
      ///DMO/I_Travel_U
      _Agency,
      _Booking,
      _Currency,
      _Customer

}

Su código MDE debería verse así:

@Metadata.layer: #CORE
annotate view Z_C_TRAVEL_DATA_XXX with
{

@UI           : {
      lineItem      : [{position: 15, importance: #HIGH}],
      selectionField: [{position: 15 }]
      }
AgencyID;

@UI           : {
      lineItem      : [{position: 20, importance: #HIGH}],
      selectionField: [{position: 20 }]
      }
CustomerID;

@UI           : {
      lineItem      : [{position: 10, importance: #HIGH}],
      selectionField: [{position: 10 }]
      }
TravelID;

@UI           : {
      lineItem      : [{position: 30, importance: #HIGH}],
      selectionField: [{position: 30 }]
      }
BeginDate;

@UI           : {
      lineItem      : [{position: 40, importance: #HIGH}],
      selectionField: [{position: 40 }]
      }
EndDate;

@UI           : {
      lineItem      : [{position: 50, importance: #HIGH}]
      }
TotalPrice;

@UI           : {
      lineItem      : [{position: 50, importance: #HIGH}]
      }
Memo;

@UI           : {
    lineItem      : [{position: 60, importance: #HIGH}],
    selectionField: [{position: 60 }]
    }
Status;

}