To find out the name of the current database on Oracle:

SQL> SELECT name FROM v$database;

I've never used an enum in Java before, I've always relied on normal static final ints for constants. There are several disadvantages of this, as spelt out on http://download.oracle.com/javase/1.5.0/docs/guide/language/enums.html:

• The static final int is not typesafe - you can pass in any old integer constant, or a different int …

I have a need to upload a file via a Java servlet. I've managed to do that using Apache Commons FileUpload, available at http://commons.apache.org/fileupload/.

To upload a file, you need to declare a form field of type file. This must be within a form which is of type …