What is the cause of a null username in sys.aud$

Question

I have two records in sys.aud$ with a null username. They are a logon and a alter user. What does that mean? Was it a connect / as sysdba?

Answer 1

I found your other post in the JDBC forum, and I now understand what you're trying to do. Off the top of my head, I see no solution, other than parsing all the column names sent into the PreparedStatement against the MetaData about the table(s), views, what have you.
Other than that, you would have to add a third arraylist of column types, but that makes calling the functions more difficult.
Lastaly, and not a good option even if it worked, some vendors have extensions off of JDBC (e.g. Oracle). You can cast sql objects into their objects, and they may provide a generic setNull, dont' know, haven't looked, just thought of it as a possiility. Of course, then you're not pure JDBC anymore.....
We'll see if anyone else has any ideas.
bRi