Enabling Delta Load 

Use

You must first configure and modify the DataSource to be used for delta loading in CAF and SAP BW integration and define delta-relevant attribute fields.

Prerequisites

You have launched the Maintain Generic DataSources tool of SAP BW.

Procedure

 

1. Configuring Generic DataSources

 

       1.      In the DataSource pane, choose  next to the Transaction data field to select the DataSource to use for CAF and SAP BW integration and choose Change.

       2.      In the Change DataSource maintenance screen:

                            a.      Set Applic. Component to BW.

                            b.      Choose Save.

       3.      In the Create Object Directory Entry dialog box:

                            a.      Choose Local Object to see the DataSource information.

                            b.      Choose Save to return to the Change DataSource maintenance screen.

       4.      Choose Generic Delta. In the Generic Delta dialog box:

                            a.      Browse Field Nm. to select the delta-relevant field.

                            b.      Mark the Time stamp radio button.

                            c.      Mark New Status for Changed Records.

       5.      In the Selection of field determining delta dialog box, select the following delta-relevant fields:

○       For the entity service DataSource, select the field corresponding to LASTCHANGEDAT.

○       For the application service DataSource, select the field corresponding to delta-relevant field specified by BW extractor method developer.

       6.      In the DataSource: Customer version Edit screen, save all data.

2. Activating DataSources

 

       1.      Launch the SAP BW Administrator Workbench and go to Modeling.

       2.      Open the list of InfoSources and select the DataSource assignment you want.

       3.      With the secondary mouse button, choose Replicate DataSources.

       4.      Select the same object from step 3 and choose Change Transfer Rules with the secondary mouse button.

       5.      In the InfoSource Change screen, choose with the quick info text Activate.

Result

Your DataSource is now configured to be used to work with the SAP BW delta load framework. For more information about how to initialize  and load data, see Starting Delta Initialization.