Does Query Blocks run's update on Source Database when Netchange is used ?



I'm trying to set up a map that will extract data from SQL Database and injected in Salesforce.

For that, I'm using the Query Block and I'm using the Netchange feature in order to process only records that has last modified date on source > then Last Run date.


Till now I didn't run my map yet, but the SQL Database is down because of heavy tentative updates on the last modified date ! although i didn't run the map !


Is the preview tab that is causing this ? Does Scribe tries to update the field when using netchange ?



Thanks for you help


(3) Answers