Need help doing a dissolve in Oracle

I am trying to dissolve a large number of polygons. In ArcGIS the operation simply was not practical so I am trying to do it in Oracle.  For my initial test I am trying this:

 SELECT TRANSTECH,MAXADDOWN,MAXADUP,HOCONAME,HOCONUM,SDO_AGGR_UNION(
  MDSYS.SDOAGGRTYPE(c.shape, 0.005))SHAPE
  FROM ADDRESS_EXTRACT_FC_BUFFER_RI c
  where c.objectid < 101
group by TRANSTECH,MAXADDOWN,MAXADUP,HOCONAME,HOCONUM,SHAPE;

But I am getting the following error:

ORA-22901: cannot compare VARRAY or LOB attributes of an object type
22901. 00000 -  "cannot compare nested table or VARRAY or LOB attributes of an object type"
*Cause:    Comparison of nested table or VARRAY or LOB attributes of an
           object type was attempted in the absence of a MAP or ORDER
           method.
*Action:   define a MAP or ORDER method for the object type.
Error at Line: 12 Column: 54

If I do the aggregate function on the shape column only  it works successfully.  I tried adding an ordered hint but no sucess either.

Any Ideas will be greatly appreciated.
Thanks,
OR1Asked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

OR1Author Commented:
I got around the error I was having.  The statement runs without errors not and it gives me the same number of features I would expect from doing it with ArcGIS.  The problem I have now is that it is very slow. It took 1 hour to run on 3335 polygons. If there something I am doing wrong?

select TRANSTECH,MAXADDOWN,MAXADUP,HOCONUM,HOCONAME,SDO_AGGR_UNION(
  MDSYS.SDOAGGRTYPE(c.shape, 0.005))SHAPE
   FROM ADDRESS_EXTRACT_FC_BUFFER_RI c
  group by TRANSTECH,MAXADDOWN,MAXADUP,HOCONUM,HOCONAME;


Also I will have to convert this into something I can export to a new  geodatabase  feature class.  I was thinking about selecting the results of the query into a a table and register it later as a feature class. Does  that sound like the right approach?

Thanks,
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
mrfixit22Commented:
you can use http://ss64.com/ora/syntax.html exp.  I would like to have the shape file to work with.
If you can let me know and I will give your a place to send it.
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Oracle Database

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.