Many times there is a requirement in which we just have to migrate the data from the oracle database to our Salesforce org. This requirement can easily be achieved by using the Talend ETL Data Integration tool. This is the open source tool which can be downloaded easily from the Talend website. You can read this article for more details of the Oracle Salesforce Integration.

https://astreait.com/MigratingRecordsfromOracleDatabasetoSalesforce/