Data Transfer Process (Enhanced) 

Technical Data

Function Is	Changed
In Release	Software Component ●      Component: SAP NetWeaver ●      Release: 7.0 ●      Support Package: 8
Assignment to Application Component	BW-WHM Warehouse Management
Country Setting	Valid for all countries

Use

With SAP NetWeaver 7.0 SPS 8, the features of the data transfer process (DTP) have been enhanced in the following areas:

Delta Without Data Transfer

With InfoPackages, you can simulate delta initialization for certain DataSources. A request that is started in this way marks the data that is found in the source as Fetched, without actually transferring it to the target. As of SAP NetWeaver 7.0 SPS 8, delta without data transfer is also possible for the data transfer process. On the Execute tab page in data transfer process maintenance, you can select this processing mode if the data transfer process extracts data in delta mode.  If delta requests have already been transferred for this data transfer process, you can still choose this mode. 

Only Transfer Delta Once (Snapshot of Source Data)

On the Extraction tab page in data transfer process maintenance, you can specify that the delta is only fetched once for a data transfer process that has Delta as the extraction mode. Requests for a data transfer process of this type have the indicator Only Transfer Delta Once.

If you set this indicator for a delta DTP, a snapshot of the source is transferred to the target with each load process. The InfoProvider is filled with all the current data in the source. The content of the InfoProvider is deleted before the load process. This ensures that the content of the InfoProvider is an exact representation of the source data. Deleted data records are eliminated.

At the start of request generation, the source requests of a DTP request that was loaded before are always identified as already fetched when the system determines the delta. This is also true if the DTP request has already been deleted in the target. DTP requests that need to be fetched appear in the where-used list of the PSA request with this indicator, even if they have already been deleted from the target. Instead of a traffic light you have a delete indicator.

This setting allows DTP requests to be deleted from the target, without transferring the source requests again with the next DTP request.  It allows data to be correctly updated to a DataStore object when the source is filled with a full upload. If a second full upload transfers fewer data records than the first and the DataStore object is updated in overwrite mode, setting this indicator ensures that the status of the data in the DataStore object is consistent.

Data Transfer Process Monitor

●      In the detail view of the request, under Process Request  ®  Data Package<x>, you can call the display of the transformation in the context menu of the substep of the transformation.

●      If the system terminates the request in the transformation with a short dump or an exception, a short text is displayed in the detail view of the monitor in the substep under Process Request  ®  Data Package<x>.

You can call the point at which the program terminated or access the log for the short dump in the context menu of the short text or by choosing  in the Messages column. As of SPS 8, this pushbutton is only displayed at the place at which the error occurred.

In addition, in the context menu of the short text you can call the ABAP stack at the point at which the program terminated.

Data Transfer Process in the Log View of a Process Chain

In the log view of a process chain, you can call the display of target and source objects in the context menu of the data transfer process. This is valid as of SAP NetWeaver 7.0 SPS 8. The system displays either the maintenance interface of the object (for example, the DataSource) or the administration view of the object (for example, for the DataStore object).

In addition, you can call the where-used list for DTP requests in the context menu.