Problems creating an spatial index with srid=4326

Question

Hi!
I would like to know if somebody can help me with the following problem: We are using the 10.2.0.1 version and we need that our SRID value is 4326. We do not have problems with 8307 or another value. However, when we tried to use srid = 4326, appears the following error message:
Error on line 17 CREATE INDEX SIDX_D3M_SDO_GEOMETRY ON DAT_3DM_MODEL (DM3_SDO_GEOMETRY) INDEXTYPE ORA-29855: an error in the execution of routine ODCIINDEXCREATE has taken place ORA-13249: internal error in Spatial index: [mdidxrbd] ORA-13249: Error initializing geodetic transform ORA-06512: in “MDSYS.SDO_INDEX_METHOD_10I”, line 10
The PL/SQL that we used is the following one:
DELETE FROM USER_SDO_GEOM_METADATA WHERE TABLE_NAME = “DAT_3DM_MODEL”
COMMIT
INSERT INTO USER_SDO_GEOM_METADATA (TABLE_NAME, COLUMN_NAME, DIMINFO, SRID) VALUES('DAT_3DM_MODEL', 'DM3_SDO_GEOMETRY', MDSYS.SDO_DIM_ARRAY ( MDSYS.SDO_DIM_ELEMENT ('LONGITUDE', -180, 180, 0,05), -- MDSYS.SDO_DIM_ELEMENT ('LATITUDE', -90, 90, 0.05) ), 4326 )
CREATE INDEX SIDX_D3M_SDO_GEOMETRY ON DAT_3DM_MODEL (DM3_SDO_GEOMETRY) INDEXTYPE IS MDSYS.SPATIAL_INDEX
Thanks in advance,
Susana.

Answer 1

I cannot reproduce the error, in my environment. However:
Your insert statement into USER_SDO_GEOM_METADATA appears to have included some typos. They might have happened, when transcribing. Please make sure you use the following:
INSERT INTO USER_SDO_GEOM_METADATA (
TABLE_NAME,
COLUMN_NAME,
DIMINFO,
SRID)
VALUES(
'DAT_3DM_MODEL',
'DM3_SDO_GEOMETRY',
MDSYS.SDO_DIM_ARRAY (
MDSYS.SDO_DIM_ELEMENT ('LONGITUDE', -180, 180, 10),
MDSYS.SDO_DIM_ELEMENT ('LATITUDE', -90, 90, 10)),
4326);
However, the actual culprit is most certainly different. As I suspected, it might be related to the "decimal comma": In Germany, for instance, a decimal comma is used, instead of a decimal point. You have used a decimal comma in your original INSERT, as well (0,05 instead of 0.05).
Please try the following:
SQL> select wktext from cs_srs where srid = 4326;
WKTEXT
GEOGCS [ "WGS 84", DATUM ["World Geodetic System 1984 (EPSG ID 6326)", SPHEROID
["WGS 84 (EPSG ID 7030)", 6378137, 298.257223563]], PRIMEM [ "Greenwich", 0.0000
00 ], UNIT ["Decimal Degree", 0.01745329251994328]]
On your system, you will likely find a decimal comma, where my output has a decimal point. This is bug 5097326, which has been fixed, and backported to 10.2.0.3 and 10.2.0.4.