on 01-05-2015 1:34 PM
Hi All,
We have data replication in place from a source HANA DB to a target HANA DB through SLT Replication.
If we perform an import from a csv file replacing data in the source table, will the same be replicated in the target database as well?
I understand that SLT replication creates DML triggers in the source database, so do these triggers interpret "import" as sequence of "insert/update/delete" ?
Thanks in advance.
Regards,
Sarim
Hi Mohammad,
Logically, SLT triggers keep a watch on the 'change in data records' for any values or any activity like insert, update, delete. Hence, I believe the changes to the data in the source (irrespective of how it gets changed) will get reflected in the target HANA database table in your case.
I haven't tried this and hence a quick test by you can make this certain.
Let me know.
Regards,
kG
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Hi Sarim,
SLT replication is create DB triggers automatically in the source database.
A technique for replicating data where an initial load is first performed that loads data from the source to the target system, and a replication phase begins whereby only changes to the source database (recorded by databases triggers) are replicated to the target database, thereby facilitating data replication in real-time.
Read the Chapter 2.1 Basic Concepts of Trigger-based data Replication using SAP
LT Replication Server for SAP HANA
from http://help.sap.com/hana/sap_landscape_transformation_for_sap_hana_operations_guide_en.pdf
For more reference
http://scn.sap.com/docs/DOC-60357
https://www.experiencesaphana.com/videos/1373
Regards,
V Srinivasan
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