Delta Mechanism of Table CDC

The following article illustrates the process of delta table extractions using the Table CDC extraction type.

Table CDC Process

The delta mechanism of Table CDC includes the following processes:

• Lookup process to read SAP metadata for the definition of the Table CDC extraction.
• CDC watch process to create a database trigger on the source table and to create the corresponding log table in SAP.
• Synchronize data process to run Table CDC extractions regularly.

The depicted graphic illustrates the processes in both Xtract Universal and in SAP. Click the graphic to zoom in.