Description

Book Synopsis


Table of Contents
  • ... Preface ... 17
  • Structure of the Book ... 19
  • Acknowledgments ... 22
  • 1 ... Modeling Your First CDS Views ... 23
  • 1.1 ... Define the Data Model of the Application ... 24
  • 1.2 ... Implement the Data Model of the Application ... 26
  • 1.3 ... Summary ... 52
  • 2 ... Fundamentals of CDS Data Modeling ... 53
  • 2.1 ... Overview of CDS Models ... 54
  • 2.2 ... Overview of CDS View Syntax ... 58
  • 2.3 ... Key Fields ... 61
  • 2.4 ... Cast Operations ... 62
  • 2.5 ... Typed Literals ... 64
  • 2.6 ... Simple Types ... 66
  • 2.7 ... Case Statements ... 68
  • 2.8 ... Session Variables ... 69
  • 2.9 ... Client Handling ... 71
  • 2.10 ... Select Distinct Statements ... 72
  • 2.11 ... Union Views ... 73
  • 2.12 ... Intersect and Except Statements ... 79
  • 2.13 ... Joins ... 81
  • 2.14 ... SQL Aggregation Functions ... 87
  • 2.15 ... Projection Fields ... 89
  • 2.16 ... Parameters ... 91
  • 2.17 ... Reference Fields ... 96
  • 2.18 ... Conversion Functions for Currencies and Quantity Units ... 99
  • 2.19 ... Provider Contracts ... 102
  • 2.20 ... Entity Buffer Definitions ... 104
  • 2.21 ... Summary ... 106
  • 3 ... Associations ... 107
  • 3.1 ... Define Associations ... 108
  • 3.2 ... Expose Associations ... 111
  • 3.3 ... Model Compositional Relations ... 111
  • 3.4 ... Model M:N Relations ... 114
  • 3.5 ... Project Associations ... 117
  • 3.6 ... Use Associations in CDS Views ... 118
  • 3.7 ... Use Associations in ABAP Code ... 129
  • 3.8 ... Summary ... 129
  • 4 ... Annotations ... 131
  • 4.1 ... Annotation Definitions ... 132
  • 4.2 ... Effects of Annotations ... 143
  • 4.3 ... Propagation Logic for Annotations ... 145
  • 4.4 ... Metadata Extensions ... 155
  • 4.5 ... Active Annotations ... 158
  • 4.6 ... Summary ... 160
  • 5 ... Access Controls ... 161
  • 5.1 ... Fundamentals of Access Controls ... 162
  • 5.2 ... Mode of Action of Access Controls ... 166
  • 5.3 ... Implementation Patterns for Access Controls ... 171
  • 5.4 ... Test Access Controls ... 207
  • 5.5 ... Summary ... 210
  • 6 ... Business Services ... 211
  • 6.1 ... Projection Views ... 212
  • 6.2 ... Service Definitions ... 216
  • 6.3 ... Service Bindings ... 221
  • 6.4 ... Testing Business Services ... 230
  • 6.5 ... Summary ... 233
  • 7 ... Native SAP HANA Functions in CDS ... 235
  • 7.1 ... Implementation of a CDS Table Function ... 236
  • 7.2 ... Application Scenarios ... 244
  • 7.3 ... Improve Performance and Avoid Errors ... 245
  • 7.4 ... Summary ... 247
  • 8 ... Modeling Application Data ... 249
  • 8.1 ... Application Architecture in SAP S/4HANA ... 250
  • 8.2 ... Field Labels ... 253
  • 8.3 ... Field Semantics ... 257
  • 8.4 ... Foreign Key Relations ... 262
  • 8.5 ... Text Relations ... 267
  • 8.6 ... Composition Relations ... 270
  • 8.7 ... Time-Dependent Data ... 272
  • 8.8 ... Summary ... 274
  • 9 ... The Virtual Data Model of SAP S/4HANA ... 275
  • 9.1 ... Why a Virtual Data Model? ... 276
  • 9.2 ... SAP Object Types and Object Node Types ... 277
  • 9.3 ... Categories of CDS Entities in the Virtual Data Model ... 280
  • 9.4 ... Naming in the Virtual Data Model ... 285
  • 9.5 ... Basic Interface View for the Sales Order ... 288
  • 9.6 ... Tips for Finding Virtual Data Model Views ... 295
  • 9.7 ... Summary ... 301
  • 10 ... Modeling Analytical Applications ... 303
  • 10.1 ... Analytics in SAP S/4HANA ... 303
  • 10.2 ... Analytical Views ... 305
  • 10.3 ... Analytical Queries ... 325
  • 10.4 ... Analytical Infrastructure ... 356
  • 10.5 ... Summary ... 359
  • 11 ... Modeling Transactional Applications ... 361
  • 11.1 ... Transactional Applications ... 362
  • 11.2 ... Transactional Infrastructure in SAP S/4HANA ... 363
  • 11.3 ... Transactional Object Models ... 366
  • 11.4 ... Behavior Definitions ... 372
  • 11.5 ... Transactional Projection Object Models ... 467
  • 11.6 ... Define Interface Behavior Definition ... 477
  • 11.7 ... Define Projection Behavior Definition ... 484
  • 11.8 ... Runtime Orchestration ... 492
  • 11.9 ... SAP Fiori and OData Consumption ... 498
  • 11.10 ... SAP Event Mesh and Local Event Handlers ... 510
  • 11.11 ... Summary ... 513
  • 12 ... Hierarchies in CDS ... 515
  • 12.1 ... Hierarchy Categories and Basics ... 516
  • 12.2 ... Annotation-Based Parent-Child Hierarchies ... 517
  • 12.3 ... CDS Hierarchies ... 526
  • 12.4 ... Summary ... 548
  • 13 ... CDS-Based Search Functionality ... 549
  • 13.1 ... Modeling Value Helps ... 550
  • 13.2 ... Free-Text Search Functionality in OData Services ... 570
  • 13.3 ... Enterprise Search Functionality ... 578
  • 13.4 ... Summary ... 583
  • 14 ... Lifecycle and Stability ... 585
  • 14.1 ... Stability Contracts ... 586
  • 14.2 ... Lifecycle of Development Objects ... 590
  • 14.3 ... Deprecation of Development Objects ... 592
  • 14.4 ... Use of CDS Models and Supported Capabilities ... 594
  • 14.5 ... Summary ... 598
  • 15 ... Extensions of CDS Views and Other Entities ... 599
  • 15.1 ... Solution Variants and ABAP Language Versions ... 600
  • 15.2 ... Stable CDS Extensions ... 602
  • 15.3 ... Extensions of Transactional Models ... 615
  • 15.4 ... Summary ... 628
  • 16 ... Automated Testing ... 631
  • 16.1 ... Test Logic of Data Selections ... 631
  • 16.2 ... Test Logic of Transactional Applications ... 658
  • 16.3 ... Summary ... 670
  • 17 ... Troubleshooting ... 671
  • 17.1 ... Performance Aspects ... 671
  • 17.2 ... Pitfalls ... 687
  • 17.3 ... Troubleshoot Implementations of CDS Models ... 698
  • 17.4 ... Troubleshoot Activation Issues ... 706
  • 17.5 ... Examine ABAP RESTful Application Programming Model Applications ... 711
  • 17.6 ... Summary ... 714
  • ... Appendices ... 715
  • A ... CDS Annotation Reference ... 717
  • B ... Migration to the ABAP RESTful Application Programming Model ... 729
  • C ... The Authors ... 737
  • ... Index ... 739

Core Data Services for ABAP

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    A Hardback by Renzo Colle, Ralf Dentzer, Jan Hrastnik

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      Book details

      Publisher SAP Press
      Published 30 November 2023
      ISBN-13 9781493223763
      978-1493223763
      ISBN-10 1493223763
      Also in:
      Computing Digital and IT general topics

      Description

      Book Synopsis


      Table of Contents
      • ... Preface ... 17
      • Structure of the Book ... 19
      • Acknowledgments ... 22
      • 1 ... Modeling Your First CDS Views ... 23
      • 1.1 ... Define the Data Model of the Application ... 24
      • 1.2 ... Implement the Data Model of the Application ... 26
      • 1.3 ... Summary ... 52
      • 2 ... Fundamentals of CDS Data Modeling ... 53
      • 2.1 ... Overview of CDS Models ... 54
      • 2.2 ... Overview of CDS View Syntax ... 58
      • 2.3 ... Key Fields ... 61
      • 2.4 ... Cast Operations ... 62
      • 2.5 ... Typed Literals ... 64
      • 2.6 ... Simple Types ... 66
      • 2.7 ... Case Statements ... 68
      • 2.8 ... Session Variables ... 69
      • 2.9 ... Client Handling ... 71
      • 2.10 ... Select Distinct Statements ... 72
      • 2.11 ... Union Views ... 73
      • 2.12 ... Intersect and Except Statements ... 79
      • 2.13 ... Joins ... 81
      • 2.14 ... SQL Aggregation Functions ... 87
      • 2.15 ... Projection Fields ... 89
      • 2.16 ... Parameters ... 91
      • 2.17 ... Reference Fields ... 96
      • 2.18 ... Conversion Functions for Currencies and Quantity Units ... 99
      • 2.19 ... Provider Contracts ... 102
      • 2.20 ... Entity Buffer Definitions ... 104
      • 2.21 ... Summary ... 106
      • 3 ... Associations ... 107
      • 3.1 ... Define Associations ... 108
      • 3.2 ... Expose Associations ... 111
      • 3.3 ... Model Compositional Relations ... 111
      • 3.4 ... Model M:N Relations ... 114
      • 3.5 ... Project Associations ... 117
      • 3.6 ... Use Associations in CDS Views ... 118
      • 3.7 ... Use Associations in ABAP Code ... 129
      • 3.8 ... Summary ... 129
      • 4 ... Annotations ... 131
      • 4.1 ... Annotation Definitions ... 132
      • 4.2 ... Effects of Annotations ... 143
      • 4.3 ... Propagation Logic for Annotations ... 145
      • 4.4 ... Metadata Extensions ... 155
      • 4.5 ... Active Annotations ... 158
      • 4.6 ... Summary ... 160
      • 5 ... Access Controls ... 161
      • 5.1 ... Fundamentals of Access Controls ... 162
      • 5.2 ... Mode of Action of Access Controls ... 166
      • 5.3 ... Implementation Patterns for Access Controls ... 171
      • 5.4 ... Test Access Controls ... 207
      • 5.5 ... Summary ... 210
      • 6 ... Business Services ... 211
      • 6.1 ... Projection Views ... 212
      • 6.2 ... Service Definitions ... 216
      • 6.3 ... Service Bindings ... 221
      • 6.4 ... Testing Business Services ... 230
      • 6.5 ... Summary ... 233
      • 7 ... Native SAP HANA Functions in CDS ... 235
      • 7.1 ... Implementation of a CDS Table Function ... 236
      • 7.2 ... Application Scenarios ... 244
      • 7.3 ... Improve Performance and Avoid Errors ... 245
      • 7.4 ... Summary ... 247
      • 8 ... Modeling Application Data ... 249
      • 8.1 ... Application Architecture in SAP S/4HANA ... 250
      • 8.2 ... Field Labels ... 253
      • 8.3 ... Field Semantics ... 257
      • 8.4 ... Foreign Key Relations ... 262
      • 8.5 ... Text Relations ... 267
      • 8.6 ... Composition Relations ... 270
      • 8.7 ... Time-Dependent Data ... 272
      • 8.8 ... Summary ... 274
      • 9 ... The Virtual Data Model of SAP S/4HANA ... 275
      • 9.1 ... Why a Virtual Data Model? ... 276
      • 9.2 ... SAP Object Types and Object Node Types ... 277
      • 9.3 ... Categories of CDS Entities in the Virtual Data Model ... 280
      • 9.4 ... Naming in the Virtual Data Model ... 285
      • 9.5 ... Basic Interface View for the Sales Order ... 288
      • 9.6 ... Tips for Finding Virtual Data Model Views ... 295
      • 9.7 ... Summary ... 301
      • 10 ... Modeling Analytical Applications ... 303
      • 10.1 ... Analytics in SAP S/4HANA ... 303
      • 10.2 ... Analytical Views ... 305
      • 10.3 ... Analytical Queries ... 325
      • 10.4 ... Analytical Infrastructure ... 356
      • 10.5 ... Summary ... 359
      • 11 ... Modeling Transactional Applications ... 361
      • 11.1 ... Transactional Applications ... 362
      • 11.2 ... Transactional Infrastructure in SAP S/4HANA ... 363
      • 11.3 ... Transactional Object Models ... 366
      • 11.4 ... Behavior Definitions ... 372
      • 11.5 ... Transactional Projection Object Models ... 467
      • 11.6 ... Define Interface Behavior Definition ... 477
      • 11.7 ... Define Projection Behavior Definition ... 484
      • 11.8 ... Runtime Orchestration ... 492
      • 11.9 ... SAP Fiori and OData Consumption ... 498
      • 11.10 ... SAP Event Mesh and Local Event Handlers ... 510
      • 11.11 ... Summary ... 513
      • 12 ... Hierarchies in CDS ... 515
      • 12.1 ... Hierarchy Categories and Basics ... 516
      • 12.2 ... Annotation-Based Parent-Child Hierarchies ... 517
      • 12.3 ... CDS Hierarchies ... 526
      • 12.4 ... Summary ... 548
      • 13 ... CDS-Based Search Functionality ... 549
      • 13.1 ... Modeling Value Helps ... 550
      • 13.2 ... Free-Text Search Functionality in OData Services ... 570
      • 13.3 ... Enterprise Search Functionality ... 578
      • 13.4 ... Summary ... 583
      • 14 ... Lifecycle and Stability ... 585
      • 14.1 ... Stability Contracts ... 586
      • 14.2 ... Lifecycle of Development Objects ... 590
      • 14.3 ... Deprecation of Development Objects ... 592
      • 14.4 ... Use of CDS Models and Supported Capabilities ... 594
      • 14.5 ... Summary ... 598
      • 15 ... Extensions of CDS Views and Other Entities ... 599
      • 15.1 ... Solution Variants and ABAP Language Versions ... 600
      • 15.2 ... Stable CDS Extensions ... 602
      • 15.3 ... Extensions of Transactional Models ... 615
      • 15.4 ... Summary ... 628
      • 16 ... Automated Testing ... 631
      • 16.1 ... Test Logic of Data Selections ... 631
      • 16.2 ... Test Logic of Transactional Applications ... 658
      • 16.3 ... Summary ... 670
      • 17 ... Troubleshooting ... 671
      • 17.1 ... Performance Aspects ... 671
      • 17.2 ... Pitfalls ... 687
      • 17.3 ... Troubleshoot Implementations of CDS Models ... 698
      • 17.4 ... Troubleshoot Activation Issues ... 706
      • 17.5 ... Examine ABAP RESTful Application Programming Model Applications ... 711
      • 17.6 ... Summary ... 714
      • ... Appendices ... 715
      • A ... CDS Annotation Reference ... 717
      • B ... Migration to the ABAP RESTful Application Programming Model ... 729
      • C ... The Authors ... 737
      • ... Index ... 739

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