Delta Extract stage

IBM InfoSphere Delta Extract stage was introduced in version 8.0 and is available only to IBM® InfoSphere® Information Server Pack for SAP Applications. The Delta Extract Stage enables you to extract data from SAP application systems by using the SAP DataSources.

DataSources are logical data interface definitions that are used to transfer data from SAP ERP systems to SAP BW or BI systems. There are different types of DataSources including DataSources for transactional data and DataSources for master data: attribute, text, and hierarchy. The Delta Extract stage allows you to search and select any DataSource and extract full or delta data by using the full and delta data fetch mode respectively.

Up to version 8.2.0.1, Delta Extract stage allows you to use only BW Extraction mode which uses BW Extractors in background to extract data from the SAP applications.

From version 8.2.0.2, in addition to BW extraction mode, stage also allows you to choose Operation Data Provisioning (ODP) extraction mode too. This extraction uses ODP mechanism to extract data from SAP applications.

Note: You can use the Delta Extract stage only in Parallel DataStage jobs. Server jobs are not supported.

For more details on usage guidelines for Delta Extract Stage, see technote 2005807.