How does the update transformation work?

The update transformation functions by modifying existing records in a dataset rather than creating new ones, deleting records, or archiving data. Specifically, it allows users to change specific field values of existing records based on conditions or matching information found in another dataset. This is particularly useful when there's a need to refresh or correct data to ensure consistency and accuracy within a data model. By referencing another dataset, the update transformation identifies the records that require modification and applies specified changes accordingly, enhancing data integrity and reliability for analytical purposes.