What is SAP Open Hub?

The open hub destination allows you to distribute data from a BW system to non-SAP data marts, analytical applications, and other applications. It allows you to ensure controlled distribution across several systems.

What is Delta mode in SAP?

In delta mode, therefore, the commitments extractors extract all line items that have changed since the last delta; these line items are extracted in their changed form (after-image). For this reason, commitments line items can only be analyzed through the use of ODS objects. Deleted records are a special case.

What is SAP delta load?

A delta data load means that you are either loading changes to already loaded data or add new transactions. Usually delta loads are done when the process has to sync any new data/changed data from the OLTP system i.e. SAP ECC or R/3 to SAP BI (DSS/BI). You use the master data elements to create an ODS and a cube.

What are the main function of BW Open Services?

The Open Hub service allows us to distribute data from a BW system into an external data marts and analytical applications. Using this we can ensure controlled distribution using several systems.

When open hub is used in data services?

An Open Hub Table is a source object that SAP Data Services uses to read data from an SAP NetWeaver Business Warehouse system. Note You can only use an Open Hub Table as a source object, and it can only be used in a regular data flow. You cannot use it in an ABAP data flow.

How do I check my open hub data?

Below we will see, how data can be extracted from a DSO to a csv file on desktop.

Execute transaction RSA1, Press ‘Open Hub Destination’
Select Info Area and right click to ‘Create Open Hub Destination.
Enter Name and Description of Open hub.
Go to ‘Destination’ tab; enter Destination Type as ‘File type’.

What is Delta initialization in SAP BW?

Delta initialization with transfer is generally the first step that you perform when you extract business content data by using PowerExchange for SAP NetWeaver. If you perform a delta update after this point, SAP sends only the data that has changed after the last record that is mentioned in the ROOSGENDLM table.

What is full file and delta file?

The Full files are new records for one Fiscal Year — in this case 2018. The Delta files contain all changes to any records in the database.

What is Delta load in ETL?

If the data service has the capability to return the data modified only after a specified date and time, the ETL process will load only the data modified after the last successful load. This is called delta load.

How do I activate open hub in SAP BW?

SAP BW Extraction Through Open Hub Destination Overview.
Create an Open Hub Destination.
Create an SAP BW OHS Source Definition.
Start the SAP BW Service.
Configure and Start a PowerCenter Workflow.
Configure and Start a Process Chain.
Viewing Data Extraction Status.
Troubleshooting Data Extraction from SAP BW through OHD.

How do you change open hub data in SAP BW?

Data extraction from BW using Open Hub Service

Execute transaction RSA1, Press ‘Open Hub Destination’
Select Info Area and right click to ‘Create Open Hub Destination.
Enter Name and Description of Open hub.
Go to ‘Destination’ tab; enter Destination Type as ‘File type’.
Go to ‘Fields Def.

How do I get the Delta from the open hub?

The request ID is stored in the Open Hub table and is then used by the connector to identify the delta. The two steps run asynchronously: the DTP is triggered by SAP, and the data copy is triggered through the service. By default, the service is not reading the latest delta from the Open Hub table (option “exclude last request” is true).

What is open hub destination in SAP BW?

SAP BW Open Hub Destination (OHD) defines the target to which the SAP data is relayed. Any objects supported by SAP Data Transfer Process (DTP) can be used as open hub data sources, for example, DSO, InfoCube, DataSource, etc. Open Hub Destination type – where the relayed data is stored – can be database tables (local or remote) and flat files.

Why is the service not reading the latest Delta from hub?

By default, the service is not reading the latest delta from the Open Hub table (option “exclude last request” is true). Hereby, the data in the service is not 100% up to date with the data in the Open Hub table (the last delta is missing). In return, this procedure ensures that no rows get lost caused by the asynchronous extraction.

What is open hub destination (OHD)?