Here is a little hack you might try (assuming that you reference the database server by name and the credentials you are using are the same).
Let's say your old database server is name MYDB08 at IP address 10.20.30.8 and your new database server is named MYDB12 at IP address 10.20.30.12.
- Stop the ITPAM process on the server
- Add an entry to the hosts file like this: 10.20.30.12 MYDB08
- Start the ITPAM process on the server
Now all your old processes can finish up accessing the database server they reference as MYDB08.