Understanding the Architectural Concept

Objective

After completing this lesson, you will be able to understand the architectural concept.

Architectural Concept

Watch the following animation to understand the architectural concept of ABAP and non-ABAP source systems.

Note

When you need to replicate a table with a table that has special characters, such as the colon (:) and dot (.) mark in the table name, refer to SAP Note 2321324

Note

If you are interested in the behavior of the SLT triggers, please consider the following. If your source system runs on an SAP HANA database, you have four triggers. For more information, see SAP Note: 1620618

Beginning with DMIS 2018 SP04, a new Change Data Capture (CDC) mechanism was released. This new CDC mechanism is supported with a source using S/4HANA 2020 or higher.

There are two ways to identify if an SLT configuration is using the new CDC subscription mechanism:

  • If the triggers and logging tables are using the /1DH/* namespace, this is the new CDC mechanism.
  • Check the IUUC_REPL_CONFIG table for the CDC_IMPL value. A value of 'A' or 'D' indicates usage of the new CDC mechanism.

Note

For more information on the new CDC subscription mechanism for CDS Views, refer to the following notes:

  • 3095924 - How to tell if SLT is using the new CDC subscription mechanism for CDS Views – SLT

  • 2883752 - Release Information SLT - DMIS 2018 SP04