In which two scenarios should a DataRaptor be used?

The two scenarios where a DataRaptor should be used are: to retrieve an account and its related contacts, and to merge the city and state fields into a single field. A DataRaptor is a tool that can read, transform, and write data from Salesforce objects or JSON objects. A DataRaptor Extract can retrieve data from one or more Salesforce objects using SOQL queries, and store it in an Interface object or a JSON object. A DataRaptor Transform can map data from one Interface object or JSON object to another, and apply formulas and functions to transform the data. For example, a DataRaptor Transform can concatenate two fields into one using the + operator