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Bw training 4 extraction

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Transcript

  • 1. Data Extraction 
  • 2. OLTP Extraction
    • Production Data Extractors
    • DataSource Replication
    • R/3 Extraction Process
    • Non-R/3 Extraction Process
    • Scheduling
    • Monitoring
  • 3. R/3 Production Data Extractor
    • Supports multiple R/3 releases beginning with 3.0D.
    • Integration to DataSources provided by SAP OLTP system.
    • Data transferred using either IDOCs or TRFCs to carry the data.
  • 4. DataSource Replication for R/3 OLTP R/3 OLTP Extract Structure BW Server Transfer Structure Transfer Structure DataSource Replication
  • 5. Extraction from R/3 OLTP HR CO FI LO EC R/3 OLTP Meta data Data Extractor
    • InfoSources
      • Transaction data
      • Master Data Descriptions
      • Attributes
      • Hierarchies
    • Currency conversion rates
    • Full update / Delta update
  • 6. Update Process BW Server Aggregates, ODS’ and InfoCubes Update Rules UR1 UR2 UR3 Master Data Hierarchies Texts Info Sources Sales data HR admin Customer
    • Update process serves
      • ODS Objects
      • InfoCubes
      • Master data
    • Update Rules
      • Field to field
      • Currency conversion
      • Time conversion
      • Grouping
      • Fixed values
      • Formulas
      • Conditions ...
  • 7. Non-R/3 Data Sources
    • Third party data extraction and load tools
      • Third party tool represents Source System with multiple InfoSources
      • Meta data exchange through BAPI
      • Consistent update through BW transformation and update rules
    • File interface
      • Mapping based on meta data
      • Fixed and variable record length
      • CSV-format (i.e. Excel)
  • 8. External Data ‘Extraction’ – Remote Cubes 
  • 9. SAP BW Remote Cube
    • Replace reporting tools in OLTP systems wherever possible
      • Uniform and modern user interface
      • Cross application reporting
    • Real-time access to transaction data in the operative system(s)
      • Direct access versus replication
    • Reuse of the existing BW infrastructure
      • Extractors
      • Service API
      • BW meta data model
      • Transfer rules
  • 10. Limitations
    • Only for transaction data
    • Suitable only for small volumes of data
    • Few end users
    • Additional requirements for the extractors
      • Selective for the most important characteristics
      • Pre-aggregation (if appropriate)
    • No Inversion of Customer Exits (in SAPI)
    • Available from OLTP-Release 4.0B on