Using default instead of table update for oracle.

git-svn-id: http://svn.igniterealtime.org/svn/repos/openfire/trunk@10155 b35dd754-fafc-0310-a699-88a17e54d16e

src/database/upgrade/18/openfire_oracle.sql

--- add isHidden column to mucService
-ALTER TABLE mucService ADD isHidden INTEGER;
-
--- set all current services to isHidden = false
-UPDATE mucService set isHidden = 0;
+-- add isHidden column to mucService, with isHidden set to false by default
+ALTER TABLE mucService ADD isHidden INTEGER DEFAULT 0 NOT NULL;
 
 
 UPDATE jiveVersion set version=18 where name = 'openfire';