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Function documentationABAP Data Sources

 

You can extract data for comparison from ABAP systems.

Cross-database comparison uses RFC function modules to extract data from managed ABAP systems. You can specify which of the following types you want to use.

  • Generated extractor function module

    This function module is specific to your data model. It is generated for each comparison and transported from the development system to the production system. Each time a data model is changed, new extractor function modules are generated and retransported.

  • Generic extractor function module

    This function module receives selection criteria from the cross-database comparison application, and can be used for all possible data models.

Features

The following ABAP data source types are available:

SAP ABAP System (RFC to Generated Extractor)

In this case, data is read by a generated function module. The following data is required:

  • RFC Connection (Read): Connection to read the data from the ABAP Dictionary of the source system.

  • RFC Connection (Trusted): Connection to create the function module in the source system.

  • Function Group: Name of the function group (new or existing function group).

  • Function Name: Name of the function module generated by the application.

SAP ABAP System (RFC to Generic Extractor)

The data is read by a generic function module. The following data is required:

  • RFC Destination: Connection to read the data from the ABAP Dictionary of the source system.

  • SQL Statement: SELECT: Select-clause of the generated select statement, identifying the data fields to be extracted.

  • SQL Statement: FROM: From-clause of the generated select statement, identifying the tables to be read.

  • SQL Statement: Fixed WHERE: A part of the where-clause of the generated select statement corresponding to the fixed filters of the data model.

  • SQL Statement: ORDER BY: Extracted data has to be ordered by the keys.