Registering a polygon table to point in a m. view using SDO_CENTROID/sdelayer error

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10-28-2013 11:23 PM
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New Contributor
Hello,

I try to make a point materialized (point) view from a polygon table. First I make a selection on the geometry to make it a point I use  SDO_GEOM.SDO_CENTROID on the geometry so I get an extra geometry column 'GEOMETRIE2' which has the centroid of a polygon.
[ATTACH=CONFIG]28676[/ATTACH]

After the selection I do an insert on USER_SDO_GEOM_METADATA:

insert into USER_SDO_GEOM_METADATA (
    TABLE_NAME,
    COLUMN_NAME,
    DIMINFO,
    SRID)
values (
    'TABLETEST',
    'GEOMETRIE2',
    MSDYS.SDO_DIM_ARRAY (
        MDSYS.SDO_DIM_ELEMENT('X',  70000, 180000, 0.01),
        MDSYS.SDO_DIM_ELEMENT('Y', 480000, 580000, 0.01)),
    '');

I then register the table by sdelayer:

sdelayer �??o register �??l TABLETEST,GEOMETRIE2 �??e p -t SDO_GEOMETRY �??C SEQ_ID,USER �??k SDO_GEOMETRY �??P HIGH �??x 0,0,5000,0.02 �??G 28992

However this will result in the following error:

Error: Abstract Data Types not supported (-320).
Error: Cannot Create Layer.

Any ideas?
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3 Replies
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Esri Esteemed Contributor
ArcSDE requires that each table have no more than one geometry column.  You can
register a view on a table with two SDO_GEOMETRY columns, but not the base table
itself.  Adding a second column to a registered table might make that base table
unstable -- You may need to make a second view.

- V
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New Contributor
Thanks for the reply. I changed the selection to 1 GEOMETRY column:

SELECT CAST (ROWNUM AS NUMBER (38)) SEQ_ID,
       SCHW_ID,
       CMS_ID,
       CMS_TYPE,
       CMS_BASE,
       CMS_TASK,
       CMS_SD,
       SDO_GEOM.SDO_CENTROID (c.GEOMETRIE, m.diminfo) GEOMETRIE
  FROM GWB_MUTATIESIGNALERING_SCHOUW c, user_sdo_geom_metadata m
WHERE m.table_name = 'GWB_MUTATIESIGNALERING_SCHOUW'
       AND m.column_name = 'GEOMETRIE';

And the result (registration and insert to USER_SDO_GEOM_METADATA) worked perfectly.

Thanks!
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Esri Esteemed Contributor
If you have registered the SEQ_ID field as the registered rowid column,
you have generated an unsafe view.  It will not function correctly in
ArcGIS Desktop or Server because the content of SEQ_ID will change for
the same row with for each WHERE clause.  Registered rowid (objectid)
columns are used to tie the geometries to tables (selection sets), so the
value must be the same with each query (rownum does not meet this
requirement).

- V
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