I know there was a feature request with the ID ID: 1031217 and I tried the solution mentioned in the comments. But there I have no opportunity to change the database name. If you have webspace or a managed server than you have mostly use the name scheme what is given by the hoster. Actually I had to move a 6GB database and it was a pain to edit this large file just to put the 'use databasename' in.
So please can you provide a form field where I can put in a new database name for the use query. Thanks.