1 files changed, 6 insertions, 4 deletions

diff --git a/examples/adjacencytree/tables.py b/examples/adjacencytree/tables.py
index e82c8ee59..364ddd737 100644
--- a/examples/adjacencytree/tables.py
+++ b/examples/adjacencytree/tables.py
@@ -1,8 +1,10 @@
 from sqlalchemy.schema import *
 import sqlalchemy.engine
+import os
 
 #engine = sqlalchemy.engine.create_engine('sqlite', ':memory:', {}, echo = True)
-engine = sqlalchemy.engine.create_engine('postgres', {'database':'test', 'host':'127.0.0.1', 'user':'scott', 'password':'tiger'}, echo=True)
+#engine = sqlalchemy.engine.create_engine('postgres', {'database':'test', 'host':'127.0.0.1', 'user':'scott', 'password':'tiger'}, echo=True)
+db = sqlalchemy.engine.create_engine('oracle', {'dsn':os.environ['DSN'], 'user':os.environ['USER'], 'password':os.environ['PASSWORD']}, echo=True)
 
 
 """create the treenodes table.  This is ia basic adjacency list model table.
@@ -10,7 +12,7 @@ One additional column, "root_node_id", references a "root node" row and is used
 in the 'byroot_tree' example."""
 
 trees = Table('treenodes', engine,
-    Column('node_id', Integer, primary_key=True),
+    Column('node_id', Integer, Sequence('tree_id_seq', optional=True), primary_key=True),
     Column('parent_node_id', Integer, ForeignKey('treenodes.node_id'), nullable=True),
     Column('root_node_id', Integer, ForeignKey('treenodes.node_id'), nullable=True),
     Column('node_name', String(50), nullable=False),
@@ -27,7 +29,7 @@ print "\n\n\n----------------------------"
 print "Creating Tree Table:"
 print "----------------------------"
 
-#treedata.create()    
-#trees.create()
+treedata.create()    
+trees.create()