Geographic Information Systems Stack Exchange is a question and answer site for cartographers, geographers and GIS professionals. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I have a problem with ArcSDE that I have never come accross before and I was wondering if anyone could shed any light on this problem.

Problem ArcSDE 9.3.1:

Connnecting to an ArcSDE instance (Oracle Spatial) with over 20,000 datasets (raster) causes ArcGIS/ArcObjects code to connect very slowly - minutes in fact before a successful connection is made to the database. However if a native SQL connection is made, the connection is almost instant.

Has anyone else had this problem and if so what can be done to remedy this problem.

share|improve this question
Are you storing your rasters in a Raster Catalog? – Kirk Kuykendall Oct 18 '11 at 14:37
Probably a better description of the connection strings and particulars of the keyword datatype would be beneficial. – Brad Nesom Oct 18 '11 at 14:45
Not sure until I get to the client site - but I'm guessing they are just plain loaded into ArcSDE without any configuration. – Vidar Oct 18 '11 at 14:58
I will get back to you with more details when I get to the client site too...maybe I was jumping the gun a bit too much here :) – Vidar Oct 18 '11 at 15:17
Actually, I remember, they are loaded into the database as blobs - so each tile is a blob, I don't think they use raster catalogs at all. – Vidar Oct 18 '11 at 15:27
up vote 4 down vote accepted

Are they registered with the GeoDatabase and in A Raster Catalog? If not, it basically has to dynamically find info about each table and 20,000 DB DESCRIBEs can get kind of heavy and time consuming :)

share|improve this answer
ahh interesting. This has given me some things to think about - hopefully it should be a fairly easy fix. – Vidar Oct 18 '11 at 19:50

We had a noticeable speed improvement when we switched our users over to Direct Connections.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.