I made following changes to get a running Oracle installation:

1. removed all errors in db/tiki-1.9-oci8.sql

1a. changed name for for indices and sequences with more than 30 chars

1b. changed names of the following objects

	tiki_live_support_message_comm(ents)
	tiki_content_templates_section(s)
	outbound_mails_for_inbound_mai(ls)
	
    and changed the occurrences in the following files
    
	lib/tikilib.php
	lib/templates/templateslib.php
	lib/commentslib.php
	tiki-admin_forums.php
	templates/tiki-admin_forums.tpl

2. in tkilib.php I changed all "select from <table> as <alias>" into "<table> <alias>"
   I don't know whether there are other files because I did not use all functions
   This change is also valid for MySQL

3. I did not change the "tiki_languages" and "tiki_untranslated" tables correctly
   because there are some things to be done for Oracle (you can't use a LOB
   reference directly as you may in MySQL). tables referenced in:
   
   	tiki-edit_languages.php
   	tiki-imexport_languages.php
	
4. I removed all indices on LOB fileds. It has to be checked whether this 
   leads to performance problems
   
   