What must be created first to set up an ADW connection to OAC?

In order to establish an ADW (Autonomous Data Warehouse) connection to OAC (Oracle Analytics Cloud), creating a data set is the essential first step. A data set is a representation of your data that is used by OAC to create visualizations and analysis. When you create a data set, you are essentially selecting the relevant data elements from the ADW that you want to work with in OAC.

Without a properly defined data set, OAC wouldn't know which specific data should be retrieved from the ADW for analysis, making it crucial to establish this foundational element first. Once the data set is in place, it can then facilitate the creation of other components, such as credentials and external tables, as they rely on the structure and metadata defined in the data set to function correctly.