Steps to create CDS view:

• Open Eclipse IDE (with ADT installed).
• Right-click your ABAP project → New → Other → Search for “DCL/CDS” → Select “Data Definition”.
• Enter:
  • Name (e.g., zempView )
  • Description
• Select a transport request
• Click Finish.

  @AbapCatalog.viewEnhancementCategory: [#NONE]
  @AccessControl.authorizationCheck: #NOT_REQUIRED
  @EndUserText.label: 'view entity for employee'
  @Metadata.ignorePropagatedAnnotations: true
  @ObjectModel.usageType:{
  serviceQuality: #X,
  sizeCategory: #S,
  dataClass: #MIXED
  }
  define view entity zempView as select from zdpm_employee
  {
  key empid as Empid,
  empname as Empname,
  depid as Depid,
  salary as Salary
  }