Hi All, I want to calculate data from a CSV file as the data source, then retrieve the formula from the database table. For example, the CSV file contains columns for "id" and "amount," while the database has columns for "id" and "formula." When the "id" from the CSV file is found in the database, the "amount" will be calculated using the corresponding formula based on that "id". How can I create this using NiFi?   Thanks ... View more