Core Data Services for ABAP (Hardcover)

... Preface ... 15 ... Structure of the Book ... 16 ... Acknowledgments ... 19 1 ... Modeling Your First CDS View ... 21 1.1 ... Define the Data Model of the Application ... 22 1.2 ... Implement the Data Model of the Application ... 25 1.3 ... Summary ... 54 2 ... Fundamentals of CDS Data Modeling ... 55 2.1 ... Overview of CDS Syntax ... 56 2.2 ... Key Fields ... 59 2.3 ... Cast Operations ... 61 2.4 ... Case Statements ... 63 2.5 ... Session Variables ... 64 2.6 ... Client Handling ... 66 2.7 ... Union Views ... 68 2.8 ... Joins ... 76 2.9 ... SQL Aggregation Functions ... 82 2.10 ... Associations ... 85 2.11 ... Parameters ... 106 2.12 ... Conversion Functions for Currencies and Quantity Units ... 112 2.13 ... Performance Aspects ... 116 2.14 ... Summary ... 123 3 ... Annotations ... 125 3.1 ... Annotation Definitions ... 126 3.2 ... Effects of Annotations ... 136 3.3 ... Propagation Logic of Element Annotations ... 139 3.4 ... CDS Metadata Extensions ... 146 3.5 ... Active Annotations ... 150 3.6 ... Summary ... 152 4 ... Access Controls ... 153 4.1 ... Fundamentals of Access Controls ... 154 4.2 ... Mode of Action of Access Controls ... 157 4.3 ... Implementation Patterns for Access Controls ... 162 4.4 ... Test Access Controls ... 183 4.5 ... Summary ... 186 5 ... Native SAP HANA Functions in CDS ... 187 5.1 ... Implementation of a CDS Table Function ... 188 5.2 ... Application Scenarios ... 195 5.3 ... Aspects for Consideration ... 196 5.4 ... Summary ... 197 6 ... Modeling Application Data ... 199 6.1 ... Application Architecture in SAP S/4HANA ... 200 6.2 ... Field Labels ... 204 6.3 ... Field Semantics ... 208 6.4 ... Foreign Key Relations ... 214 6.5 ... Text Relations ... 220 6.6 ... Composition Relations ... 222 6.7 ... Time-Dependent Data ... 225 6.8 ... Hierarchies ... 226 6.9 ... Summary ... 237 7 ... The Virtual Data Model in SAP S/4HANA ... 239 7.1 ... Why a Virtual Data Model? ... 239 7.2 ... Structure of the Virtual Data Model ... 241 7.3 ... Naming in the Virtual Data Model ... 249 7.4 ... Basic Interface View for the Sales Order ... 254 7.5 ... Tips for Finding Virtual Data Model Views ... 262 7.6 ... Summary ... 270 8 ... Modeling Analytical Applications ... 271 8.1 ... Analytics in SAP S/4HANA ... 272 8.2 ... Analytic Views ... 273 8.3 ... Analytic Queries ... 295 8.4 ... Analytic Infrastructure ... 321 8.5 ... Summary ... 323 9 ... Modeling Transactional Applications ... 325 9.1 ... Transactional Applications ... 325 9.2 ... Transactional Infrastructure in SAP S/4HANA ... 327 9.3 ... Transactional Object Models ... 331 9.4 ... Transactional Service Models ... 370 9.5 ... Summary ... 385 10 ... CDS-Based Search Functionality ... 387 10.1 ... Modeling Value Help Views ... 388 10.2 ... Free-Text Search Functionality in OData Services ... 396 10.3 ... Summary ... 402 11 ... Extensions of CDS Views ... 403 11.1 ... Extension Options and Released CDS Views ... 404 11.2 ... CDS Extend Views with Custom Fields ... 407 11.3 ... Usage of CDS Extend Views ... 417 11.4 ... Summary ... 425 12 ... Automated Testing ... 427 12.1 ... Fundamentals of the Test Double Framework ... 428 12.2 ... Overview of the Test Sample ... 429 12.3 ... Test CDS Views ... 432 12.4 ... Test ABAP Logic with SQL Accesses to CDS Views ... 448 12.5 ... Summary ... 451 13 ... Troubleshooting ... 453 13.1 ... Troubleshoot Implementations of CDS Models ... 453 13.2 ... Troubleshoot Activation Issues ... 461 13.3 ... Summary ... 466 A ... CDS Annotation Reference ... 467 B ... The Authors ... 477 ... Index ... 479