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I have some CAD files and GPS data I need to store in ArcSDE database. These data are currently in UTM projection, our desire is to have them stored in the database as NAD_1983_10TM projection.

The issue is this - from time to time, this stored data will be retrieved for updating and the new data to be added to them are in UTM.

Is there a way I can get the stored data to be transformed on 'fly' from NAD_1983_10TM to UTM each time it is retrived from the database and then stored back again as NAD_1983_10TM after updating.

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