Querying 2.5D data in Oracle 11g

Question

I'm trying to use the SDO_RELATE function on some 2.5D data in 11g and have some questions:
Lets say if I have two tables with some points in one and two polygons in the other:
-- TEST_TABLE_A
CREATE TABLE TEST_TABLE_A (
VALUE          VARCHAR2(100),
GEOMETRY     MDSYS.SDO_GEOMETRY);
-- Metadata 
INSERT INTO user_sdo_geom_metadata VALUES ('TEST_TABLE_A','GEOMETRY', 
SDO_DIM_ARRAY(
SDO_DIM_ELEMENT('X', -10000000, 10000000, .001),
SDO_DIM_ELEMENT('Y', -10000000, 10000000, .001),
SDO_DIM_ELEMENT('Z', -100000, 100000, .001))
, 262152);
-- Create an index with sdo_indx_dims=3
CREATE INDEX TEST_TABLE_A_SPIND ON TEST_TABLE_A (GEOMETRY)
INDEXTYPE IS MDSYS.SPATIAL_INDEX
PARAMETERS ('sdo_indx_dims=3');
INSERT INTO TEST_TABLE_A (VALUE, GEOMETRY) VALUES
('POINT1', SDO_GEOMETRY(3001, 262152, SDO_POINT_TYPE(561802.689, 839675.061, 1), NULL, NULL));
INSERT INTO TEST_TABLE_A (VALUE, GEOMETRY) VALUES
('POINT2', SDO_GEOMETRY(3001, 262152, SDO_POINT_TYPE(561802, 839675, 1), NULL, NULL));
INSERT INTO TEST_TABLE_A (VALUE, GEOMETRY) VALUES
('POINT3', SDO_GEOMETRY(3001, 262152, SDO_POINT_TYPE(561808.234, 839662.731, 1), NULL, NULL));
-- TEST_TABLE_A
CREATE TABLE TEST_TABLE_B (
VALUE          VARCHAR2(100),
GEOMETRY     MDSYS.SDO_GEOMETRY);
-- Metadata
INSERT INTO user_sdo_geom_metadata VALUES ('TEST_TABLE_B','GEOMETRY', 
SDO_DIM_ARRAY(
SDO_DIM_ELEMENT('X', -10000000, 10000000, .001),
SDO_DIM_ELEMENT('Y', -10000000, 10000000, .001),
SDO_DIM_ELEMENT('Z', -100000, 100000, .001))
, 262152);
-- Create an index with sdo_indx_dims=3
CREATE INDEX TEST_TABLE_B_SPIND ON TEST_TABLE_B (GEOMETRY)
INDEXTYPE IS MDSYS.SPATIAL_INDEX
PARAMETERS ('sdo_indx_dims=3');
INSERT INTO TEST_TABLE_B (VALUE, GEOMETRY) VALUES
('NON-FLAT POLYGON',
SDO_GEOMETRY(3003, 262152, NULL, SDO_ELEM_INFO_ARRAY(1, 1003, 1), SDO_ORDINATE_ARRAY(561902.814, 839647.609, 10.022,
561891.19, 839652.227, 10.424, 561879.129, 839656.427, 10.932, 561867.892, 839659.927, 11.136, 561851.813, 839664.222, 11.594,
561831.714, 839668.612, 11.797, 561802.689, 839675.061, 11.975, 561778.461, 839680.155, 12.611, 561753.474, 839685.085, 12.153,
561750.606, 839685.756, 12.026, 561748.963, 839671.963, 15.309, 561747.899, 839659.764, 16.35, 561798.912, 839651.036, 15.801,
561808.702, 839650.973, 15.225, 561844.265, 839648.912, 14.62, 561874.846, 839647.57, 13.018, 561897.681, 839647.338, 10.704, 561902.814, 839647.609, 10.022))
INSERT INTO TEST_TABLE_B (VALUE, GEOMETRY) VALUES
('FLAT POLYGON',
SDO_GEOMETRY(3003, 262152, NULL, SDO_ELEM_INFO_ARRAY(1, 1003, 1), SDO_ORDINATE_ARRAY(561902.814, 839647.609, 1,
561891.19, 839652.227, 1, 561879.129, 839656.427, 1, 561867.892, 839659.927, 1, 561851.813, 839664.222, 1,
561831.714, 839668.612, 1, 561802.689, 839675.061, 1, 561778.461, 839680.155, 1, 561753.474, 839685.085, 1,
561750.606, 839685.756, 1, 561748.963, 839671.963, 1, 561747.899, 839659.764, 1, 561798.912, 839651.036, 1,
561808.702, 839650.973, 1, 561844.265, 839648.912, 1, 561874.846, 839647.57, 1, 561897.681, 839647.338, 1,
561902.814, 839647.609, 1))
COMMIT;So now, lets say I want to find out what polygon interacts with a particular point.
I would write this query like:
SELECT     /*+ORDERED*/ b.value
FROM     TEST_TABLE_b b, TEST_TABLE_a a
WHERE     sdo_relate (a.geometry, b.geometry, 'MASK=ANYINTERACT QUERYTYPE=WINDOW') = 'TRUE'
AND      a.value = 'POINT1';Running this I get:
SELECT  /*+ORDERED*/ b.value
ERROR at line 1:
ORA-29902: error in executing ODCIIndexStart() routine
ORA-13243: specified operator is not supported for 3- or higher-dimensional R-tree
ORA-06512: at "MDSYS.SDO_INDEX_METHOD_10I", line 333But if I reverse the table order I get the correct answer
SQL> SELECT      /*+ORDERED*/ b.value
  2  FROM       TEST_TABLE_a a, TEST_TABLE_b b
  3  WHERE      sdo_relate (a.geometry, b.geometry, 'MASK=ANYINTERACT QUERYTYPE=WINDOW') = 'TRUE'
  4  AND                a.value = 'POINT1';
VALUE
FLAT POLYGON
1 row selected.Q1. Why do I get an error if I reverse the table order?
Then if I try to find what points in the polygons:
SQL> SELECT      /*+ORDERED*/ a.value
  2  FROM       TEST_TABLE_b b, TEST_TABLE_a a
  3  WHERE      sdo_relate (b.geometry, a.geometry, 'MASK=ANYINTERACT QUERYTYPE=WINDOW') = 'TRUE'
  4  AND                b.value = 'NON-FLAT POLYGON';
no rows selected
SQL> SELECT      /*+ORDERED*/ a.value
  2  FROM       TEST_TABLE_b b, TEST_TABLE_a a
  3  WHERE      sdo_relate (b.geometry, a.geometry, 'MASK=ANYINTERACT QUERYTYPE=WINDOW') = 'TRUE'
  4  AND                b.value = 'FLAT POLYGON';
VALUE
POINT1
POINT2
POINT3
3 rows selected.So this suggests that the Z value is considered in the SDO_RELATE query.
Q2. Is there anyway to run an SDO_RELATE query in 11g with 2.5D data, but get it to ignore the Z value?
I have tried using sdo_indx_dims=2 when creating the indexes, but I get the same result.
I'm using Enterprise Edition Release 11.1.0.6.0 on Windows server 2003 32bit.

Answer 1

DBA-009 wrote:
thx but how i can mask data with above give environment?What does "mask data" mean to you and what is the environment you are referring to?
Telling us that you are using 11.1 helps. But it is far from a complete description of the environment. What edition of the database are you using? What options are installed? What Enterprise Manager packs are licensed? Is any of this changable? Could you license another option for the database or another pack for Enterprise Manager if that was necessary?
What does it mean to you to "mask data"? Do you want to store the data on disk and then mask the data in the presentation layer when certain people query it (i.e. store the patient's social security number in the database but only present ***-**- and the last 4 digits to certain sets of employees)? Do you want to hide entire fields from certain people? Do you want to change the data stored in the database when you are refreshing a lower environment with production data? If so, do you need and/or want this process to be either determinisitic or reversable or both?
Justin