>On Apr 14, 11:49 am, Paul Cooper <paul.coo
...@invalid.bas.ac.uk>
>wrote:
>> On Sat, 12 Apr 2008 15:48:51 -0700 (PDT), "BklynT
...@gmail.com"
>> <BklynT...@gmail.com> wrote:
>> >All,
>> >I have a map layer with a row for each case of a disease. Using a
>> >spatial join in I got the census tract for each point and now I want a
>> >layer with the frequency by census tract.
>> >I would like to do something like:
>> >select CensusTract, count(*) as CensusCount
>> >into NewLayer
>> >from MyTable
>> >group by censusTract
>> >Is such a thing possible within ArcMap?
>> >thanks ahead of time
>> >deborah
>> Won't the "SUmmary Statistics" tool do this? The "Frequency" command
>> in Workstation Arc/INFO will do it.- Hide quoted text -
>> - Show quoted text -
>The 'Frequency' command is also under the GUI in ArcGIS using
>ArcToolbox. ArcMap -> ArcToolbox -> Analysis Tools -> Statistics ->
>Frequency.
>I'm not sure why ArcGIS doesn't support full SQL instead of just the
>where clause, joins/relates, and separate commands like the one
>above. It seems to me that ArcGIS is missing out on the real power of
>a RDMS, which is full SQL support.
>.
Mainly because of its heritage in a non-SQL database, I think. You can
use native database enquiries in Arc Workstation.