To add personal data identifiers from an Oracle database toNetApp BlueXP classificationscans, the customer should usecustom categories. Custom categories allow the user to define specific types of data (such as personal identifiers) for classification, helping BlueXP to scan and detect those specific data types within the environment.

RegEx (A)can be used for pattern matching but would require the user to manually define regular expressions, whilecustom keywords (D)andData Fusion (C)are not the appropriate mechanisms for this specific use case of adding personal data identifiers to the scans. Custom categories are specifically designed for managing such identifiers.