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1
Data Extraction
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• Production Data Extractors
• DataSource Replication
• R/3 Extraction Process
• Non-R/3 Extraction Process
• Scheduling
• Monitoring
OLTP Extraction
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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.
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DataSource Replication for R/3 OLTP
R/3 OLTP
Extract StructureExtract Structure
BW Server
Transfer StructureTransfer Structure
Transfer StructureTransfer Structure
DataSourceReplication
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HR CO FI LO EC
R/3 OLTP
Meta dataMeta data Data ExtractorData Extractor
• InfoSources
• Transaction data
• Master Data Descriptions
• Attributes
• Hierarchies
• Currency conversion rates
• Full update / Delta update
Extraction from R/3 OLTP
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BW Server
Aggregates, ODS’ andInfoCubes
Aggregates, ODS’ andInfoCubes
Update Rules
Update Rules
UR1UR1 UR2UR2 UR3UR3
Master DataHierarchies
Texts
Master DataHierarchies
Texts
Info Sources
Info Sources
Sales dataSales data HR adminHR admin CustomerCustomer
• Update process serves
• ODS Objects• InfoCubes • Master data
• Update Rules• Field to field• Currency
conversion• Time conversion• Grouping• Fixed values• Formulas• Conditions ...
Update Process
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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)
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External Data ‘Extraction’ – Remote Cubes
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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
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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