Using trial and error with the Oracle-Jena adaptor, I seem to have discovered an upper limit of 25 characters on the length of RDF model names that Oracle will let you create. Can somebody verify this for me? If so, I'm curious as to why 25 was chosen. Is that an arbitrary length chosen in the Java code, or is it a restriction imposed by the database itself? Is that length hard-coded, or is it configurable in any way?