e DataFlow Object
Right-click on Data Flow Object
When creating the Dataflow object a transport request opens up.
Afterwards add a new or existing Datasource by drag and drop to the Details:
Double click on the entered Datasource leads to the following properties:
Select a Source System and if you want a copy from an existing or a proposal from an ODP connection
By clicking on the „NEXT“ button the Dataflow is shown – now it is possible to add any other object to the dataflow.
In this example an ADSO was added and filled with three InfoObjects
Now you created a persistent ADSO.
Activate the newly created ADSO. Create a connection between the newly created ADSO and the previously created Datasource
Now you’ll see a transformation and DTP creation is possible based on the connection.
Right-click on the transformation symbol and select “Create Transformation … “
Now you are able to create a transformation – Target and Source are filled automatically:
Here you are able to define all settings for the transformation as well as connect to the fields from the previous ADSO
In addition, if infoObjects are available in the source – they are automatically connected. Don’t forget to activate!
Same for the creation of the DTP. All DTP properties can be selected. You can see/select/change all the properties already known in BW.
Same process for the composite provider – drag and drop the composite provider, assign a name and create a connection to the ADSO.
It is also possible to add a comment for the specific selections within the dataflow. Click the one you want to comment on – go to the properties section and add documentation.
As you could experience, the Dataflow object is an easy way to model your intended dataflow. You can see all the different stages on one side in one place and do not have to click yourselves through your modelled dataflow, which can be difficult and time-consuming with two different tools either the Eclipse modelling tool and the SAP GUI.
Although it is a simple way to create a complete dataflow it does not replace process chains for loading data as it is moreover a graphical view of your model. For loading the data into your model you also need to create a process chain.
Finally I’ve put together some hints which will make your work easier:
The SAP BW Composite Provider is used to bring the data together from in-memory data targets/InfoProviders. This InfoProvider can leverage both union and join operations to combine.
Purpose of Composite provider: one modeling InfoProvider (
UNION and JOIN operations are executed in HANA and not the application server.
Modeling Scenario using Composite Provider:
With the new Composite
In transaction RSLIMOBW, we create a Composite provider that uses the 3 Data store objects, Sales Transaction, Customer Master and Product Master as shown below.
How this works:
Benefits of Composite Provider over MuliteProvider:
Creation of Composite provider.
Log on to the BW Modeling Perspective with your BW credentials and attach your HANA system using the context menu on your top project level folder, choosing the option Attach HANA system, without which you will not be able to include native SAP HANA models in your Composite Provider.
Enter the Composite Provider name and description. Click Next.
Then click on the Add sign, you will be prompted if you want to select an InfoProvider or HANA view. To perform a search, enter ‘?’ and you will see a list of available objects. Select any object that you want to add to the Composite Provider.
Similarly, add an InfoProvider to your Composite Provider. Next is to add the fields from Source to Target by dragging the fields. You can use Expand all to expand all the objects added. You can also apply a filter to search a particular field.” Note that at least one field should be drop on join condition”.
Composite Provider created by using JOIN.
Composite Provider created by using UNION.
Go to the output tab and you can see the mapping of added objects.
Next is to check and activate BW object.
To preview the data in HANA Studio, use the magnifying glass icon in the upper right corner → Show Preview.
You can also analyze the result in the Problems log of this perspective.