Data Source Initialization

To initialize a data source, follow these steps:

1. Save the Delta initialization structure of the data source
2. Check all data of the package in the information package.

3. The request turns green and the Delta queue has been generated.

In many applications, when Delta is initializing, the service processing must be stopped.
Situation A: the Delta process must be initialized successfully (including generating the Delta queue for the datasource) before you can update new or
Changed (DELTA) data records to the Delta queue. The delta type (which will be explained in detail later in this unit) determines whether or not Delta
Records can be updated directly to the Delta queue from the application or the datasource extractor, however.

Situation:

When updating or changing a data queue, Delta processing must be initialized successfully. The delta type checks whether there are Delta records that can be extracted from the data extractor or application.ProgramUpdate to queue
Situation B: to delimit the initial dataset if you cannot distinguish
The initial data records and the Delta data records using other information
(Such as the time stamp) from the datasource extractor.

Situation B:

 

If no dataset can be transferred, you can select the initialization option without data transmission.

The initialization selections are copied automatically for subsequent Delta updates. No other selections can be specified in the Delta update!
When you delete all the initialization selections for the datasource, you delete the Delta queue for the datasource in the source system at the same time!