I would like my application does not depend on the database, today it can be Postgrest and tomorrow Oracle. What limitations does it have to use the JDBC component? Regards, and thank you very much.
ELT means the component creates actually nothing more than SQL statements which does the job. It has the advantage to avoid transferring the data outside the database but you lose the control over the flow and cannot say anything about the progress and of course it works only in database which are connected to each other.
Introduction to Talend Open Studio for Data Integration.
Practical steps to developing your data integration strategy.
Create systems and workflow to manage clean data ingestion and data transformation.