Core Data Services for ABAP

Description

Preface Structure of the Book Acknowledgments 1 Modeling Your First CDS View 1.1 Define the Data Model of the Application 1.2 Implement the Data Model of the Application 1.2.1 Create Database Tables 1.2.2 Create a CDS View 1.2.3 Edit a CDS View 1.2.4 Create a Hierarchy of CDS Views 1.3 Summary 2 Fundamentals of CDS Data Modeling 2.1 Overview of CDS Syntax 2.2 Key Fields 2.3 Cast Operations 2.4 Case Statements 2.5 Session Variables 2.6 Client Handling 2.7 Union Views 2.8 Joins 2.9 SQL Aggregation Functions 2.10 Associations 2.10.1 Association Definitions 2.10.2 Expose Associations 2.10.3 Model M:N Relations 2.10.4 Use Associations in CDS Views 2.10.5 Use Associations in ABAP Code 2.11 Parameters 2.12 Conversion Functions for Currencies and Quantity Units 2.13 Performance Aspects 2.13.1 Static View Complexity 2.13.2 Calculated Fields 2.13.3 Functions and Calculations 2.13.4 Persistency Models 2.13.5 CDS Models in ABAP Code 2.13.6 Performance Tests 2.14 Summary 3 Annotations 3.1 Annotation Definitions 3.1.1 Annotation Names 3.1.2 Type Definitions 3.1.3 Enumeration Values 3.1.4 Default Values 3.1.5 Scope Definitions 3.2 Effects of Annotations 3.3 Propagation Logic of Element Annotations 3.3.1 Basic Principles 3.3.2 Consistency Aspects 3.4 CDS Metadata Extensions 3.5 Active Annotations 3.6 Summary 4 Access Controls 4.1 Fundamentals of Access Controls 4.2 Mode of Action of Access Controls 4.3 Implementation Patterns for Access Controls 4.3.1 Inherit Implementation of Access Controls 4.3.2 Implement Access Controls with Path Expressions 4.3.3 Implement Access Controls without Using Authorization Objects 4.3.4 Implement Access Controls for Analytical Queries 4.3.5 Implement Access Controls on the Field Level 4.3.6 Change Access Controls of SAP-Delivered CDS Models 4.3.7 Block Standard Data Selections from CDS Models 4.3.8 Decouple Access Controls from User Input 4.4 Test Access Controls 4.5 Summary 5 Native SAP HANA Functions in CDS 5.1 Implementation of a CDS Table Function 5.2 Application Scenarios 5.3 Aspects for Consideration 5.4 Summary 6 Modeling Application Data 6.1 Application Architecture in SAP S/4HANA 6.2 Field Labels 6.2.1 Determination of a Field Label 6.2.2 Length of a Field Label 6.3 Field Semantics 6.3.1 Quantities and Amounts 6.3.2 Aggregation Behavior 6.3.3 System Times 6.3.4 Text and Languages 6.3.5 Information for the Fiscal Year 6.4 Foreign Key Relations 6.5 Text Relations 6.6 Composition Relations 6.7 Time-Dependent Data 6.8 Hierarchies 6.8.1 Leveled Hierarchies and Parent-Child Hierarchies 6.8.2 Example of a Parent-Child Hierarchy 6.8.3 Determination of a Hierarchy 6.8.4 Test a Hierarchy 6.9 Summary 7 The Virtual Data Model in SAP S/4HANA 7.1 Why a Virtual Data Model? 7.2 Structure of the Virtual Data Model 7.2.1 Basic Interface Views 7.2.2 Composite Interface Views 7.2.3 Consumption Views 7.2.4 Other Types of VDM Views 7.3 Naming in the Virtual Data Model 7.3.1 Field Names 7.3.2 Names of VDM Views 7.3.3 Parameter Names 7.3.4 Association Names 7.4 Basic Interface View for the Sales Order 7.4.1 View Annotations 7.4.2 Structure of the Sales Order View 7.4.3 Specialization 7.4.4 Field Annotations 7.5 Tips for Finding Virtual Data Model Views 7.5.1 View Browser Application 7.5.2 Search in the ABAP Development Tools 7.5.3 Search Views with Specific Annotations 7.5.4 ABAP Where-Used List 7.6 Summary 8 Modeling Analytical Applications 8.1 Analytics in SAP S/4HANA 8.2 Analytic Views 8.2.1 First Analytic Cube View 8.2.2 Test Environment for Analytic Views 8.2.3 Analytic Cube Views 8.2.4 Analytic Dimension Views 8.2.5 Analytic Model in the Test Environment 8.2.6 Consistency of the Analytic Model 8.3 Analytic Queries 8.3.1 Definition of an Analytic Query 8.3.2 Initial Layout of a Query 8.3.3 Filter, Select Options, Parameters 8.3.4 Calculation of Measures 8.3.5 Restricted Measures 8.3.6 Exception Aggregation 8.3.7 Analytic Query Selecting from Dimension Views 8.4 Analytic Infrastructure 8.5 Summary 9 Modeling Transactional Applications 9.1 Transactional Applications 9.2 Transactional Infrastructure in SAP S/4HANA 9.3 Transactional Object Models 9.3.1 Define Object Models 9.3.2 Define Transactional Object Models 9.3.3 Define Static Properties 9.3.4 Set and Check Exclusive Locks 9.3.5 Implement Data Determinations and Validations 9.3.6 Model and Implement Actions 9.3.7 Control Properties Dynamically 9.3.8 Implement Authority Checks 9.3.9 Define Calculated Fields 9.4 Transactional Service Models 9.4.1 Define Transactional Service Models 9.4.2 Generate an OData Service 9.4.3 Define Calculated Fields 9.4.4 Define an SAP Fiori Application 9.5 Summary 10 CDS-Based Search Functionality 10.1 Modeling Value Help Views 10.1.1 Sample CDS Model and OData Exposure Overview 10.1.2 CDS Value Help Modeling Details 10.2 Free-Text Search Functionality in OData Services 10.3 Summary 11 Extensions of CDS Views 11.1 Extension Options and Released CDS Views 11.1.1 Key User Extensions 11.1.2 Extend an On-Premise Installation 11.1.3 Released CDS Views 11.2 CDS Extend Views with Custom Fields 11.2.1 Extension Field 11.2.2 View Stack 11.2.3 Indirect CDS View Extensions 11.2.4 Extend the Extension Include View 11.2.5 Extension Association 11.2.6 Stability of Indirect CDS View Extension 11.3 Usage of CDS Extend Views 11.3.1 Missing Extension Association 11.3.2 Missing Extension Include View 11.3.3 Missing Foreign Key Fields 11.3.4 Analytic Query Views 11.3.5 Extension with Standard Fields 11.3.6 Extensions of Released CDS Views 11.3.7 Extensions with Calculated Fields 11.4 Summary 12 Automated Testing 12.1 Fundamentals of the Test Double Framework 12.2 Overview of the Test Sample 12.3 Test CDS Views 12.3.1 Create a Test Design 12.3.2 Implement ABAP Unit Tests 12.3.3 Test CDS Access Controls 12.3.4 Test CDS Views with Conversion Functions for Currencies and Quantity Units 12.3.5 Test Data Sources with Null Values 12.4 Test ABAP Logic with SQL Accesses to CDS Views 12.5 Summary 13 Troubleshooting 13.1 Troubleshoot Implementations of CDS Models 13.2 Troubleshoot Activation Issues 13.3 Summary A CDS Annotation Reference B The Authors Index