how to change Profile Option Value by SQL

Hi

Could you please share me your advice on the following question.

We have 2 external web servers in EBS environment. We want to set profile option "Node Trust Level" to "External" for the 2 external servers

For some reason,we can not  log into EBS and change the value from form.

we need to do it through script.

SQL> select node_name, node_id from fnd_nodes;

NODE_NAME                         NODE_ID

------------------------------ ----------

AAUSRTPE316T                          19149

AUTHENTICATION                        19150

AAUSRTPE313T                          19151

AAUSRTPE312T                          19152

AAUSRTPE311T                          19153

AAUSRTPE310T                          19154

AAEBSQA-DB                            19146

AAUSRTPA331T                          19147

AAUSRTPA331T-IRCV                     19148

AAUSRTPA331T  and AAUSRTPA331T-IRCV  are our external nodes

we want to set profile option "Node Trust Level" to "External" for the two nodes above