Can anyone give me some easy to understand exception-handled error messages, like this:

Code:
...
Catch parameter As SqlException
            MsgBox("Unable to save record due to invalid parameters.", MsgBoxStyle.Information, "Unable To Save Record")
            dbConn.Close()
...
for the following events:

- During database connection error
- Error occurred uring saving, deleting
- Unable to load data from database

And any else you guys can come up. Kindly include what kind of exception that would be as well. Thanks!