Hi Kim
Just use the function "Table / Combine Objects using column" (this will as well ask
you what to do with the attributes - such as sum the area). You can store the result
in the same table and then store the resulting selection and discard the changes on
the original table ...
*********** REPLY SEPARATOR ***********
On 25.06.2000 at 11:11 Kim Greenham wrote:
>Dear listers,
>I have a situation where I need to combine different regions which have a
>common identifier. For example, I have a Plantation Unit browser listing
>PU_id, PU_Area. Some plantation units have the same PU_id (and are spatially
>different regions) which I need to combine into one region with the same
>PU_id and sum of PU_Area. Of course I can do this manually using the menu
>Objects/Combine, but I would like to avoid the tedious process of locating
>the duplicate PU_id's then manually selecting and combining each set.
>Hopefully some sort of SQL that I can run in the Map Basic window. Any
>assistance would be greatly appreciated.
>Kim Greenham
>Watershed Digital Mapping
>[EMAIL PROTECTED]
>RMB 1015 Denmark Western Australia 6333
>Ph 61 (08) 9848 2428 Fax 61 (08) 9848 2458
>
>
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