問題文
A web application connects with one pooled database account for every end user and needs the end user's identity to be visible inside the database session. Which mechanism carries that identity?
選択肢
- The proxy user feature which opens a separate database session for every end user that the application serves.
- The application role which the application enables after checking who the end user is.
- The client identifier which the application sets on the session and which the session views expose.
- The database link which forwards the identity to the remote database.