Fusion Application Incremental Data Migration
By Sandrine Riley-Oracle on Apr 22, 2014
Written by Ayush Ganeriwal, Oracle Data Integrator Product Management
In the last post we discussed how Fusion Application uses ODI to transform and move data from their interface tables to the internal tables. In this article we will look into the use case of how Fusion Application uses ODI for extracting data from legacy applications and loading into Interface tables.
Fusion Applications have created a large number of ODI interfaces and packages for addressing this use case. These ODI artifacts are shipped to Fusion Application customers for performing the initial and incremental data migration from their legacy applications to Fusion Applications interface tables. These shipped artifacts can be customized as per the customizations in the customer’s environment. The below diagram depicts the data migration from Siebel to Fusion Customer Relationship Management (CRM). The whole process is performed in two stages. First the data is extracted from the underlying database of Siebel’s production system into staging area on Oracle database and then migrated into Fusion Applications interface tables. ODI is used for both of these operations. Once the initial migration is done then the trickle of change data is replicated and transformed through ODI and Golden gate combination.
Incremental Migration using ODI and Golden Gate
The initial is the bulk data movement process where the snapshot of the data from legacy application is moved into staging area in Oracle database. Depending upon the underlying database type of the legacy application, appropriate ODI Knowledge Module is used in the interfaces to get the best performance. For instance, for the Oracle to Oracle data movement the Knowledge Modules with DBLINK is used to move data natively through DBLINK.
The replication process takes care of moving data incrementally after the Initial load is complete. Oracle Golden Gate is leveraged for this incremental change data replication which continuously replicates the changes into the staging area. The trickle of change data is then moved from staging area to Fusion Applications interface tables through ODI’s change data capture processes using ODI Journalizing Knowledge Modules.
Thanks again for reading about ODI in the Fusion Applications! This was the last in a series of three posts. To review the related posts: Oracle Data Integrator (ODI) Usage in Fusion Applications and Fusion Application Bulk Import Process.