Implementation of K-Nearest Neighbour in Java

Please is there anyone who can take me through the process of implementing K -nearest neighbour in Java.

You can check out R's KNN implementation and adapt it to Java.

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BI-IP implementation in BI 7.0(NUC)+ Java Add-In(UC) system

Hi Experts,
We want to implement BI-IP in our existing SAP BI 7.0 system which we upgraded from BW 3.5 to BI 7.0 followed by adding the Java Add-In. During the installation of the Java Add-In central instance the BI-Java, EP Core & EP software units were selected as well, so technically this system has all the components needed for the BI-IP implementation i.e BI(ABAP), AS Java/EP/EPC, BI(Java), the question or concern now raised is
"As we know BI 7.0 is a non-unicode setup, while Java Add -In is a unicode setup", will a combination of the unicode & non-unicode in the same BI server be able to be utilized for the BI-IP implementation purpose?, does SAP support such combination?.
Please advice if the BI-JAVA & BI-ABAP installed in the same BI7.0 system utilizing unicode & non-unicode kernel will work for the BI-IP implementation just like it works under scenario where BI-JAVA, EP, EPC are running under the EP7.0 system & BI-ABAP is running in the BI7.0 system.
Find attached some info on the BI, ECC6 & EP systems.
ECC6: It was upgraded from R3 4.6C to ECC6, It's on AIX 5.2, Oracle 10.2 & Kernel is Non- Unicode
EP 7.0: It was upgraded from EP 6.0 to 7.0. It's on AIX 5.2, Oracle 10.2 & Kernel is Unicode
BI 7.0: It was upgraded from BW 3.5 to BI 7.0 with Java Add-In installed later, It's on AIX 5.2, Oracle 10.2, ABAP kernel is Non-Unicode, Java kernel is Unicode
Thanks & Rgds,
Abhishek

I'm in exactly the same boat.
BI Publisher is a COM Add-In... Clicking the GO... with COM Add-In selected gives me an unselected BI Publisher Template Builder for Word and the following statement for Load Behavior:
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Any thoughts?
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Tutorials to implement Flash Islands with Web Dynpro Java

Hi,
We have downloaded the CE 7.1 EhP1 trial version.
Any pointers to tutorials to implement Flash Islands with Web Dynpro Java would be helpful.
Thanks,
Chitrali

Hi,
I read a document which says Adobe Flex Builder is not been included part of shipment of NW. So not lots of documents available. Yet with WDA, some tutorials and blogs are available. Similar application can be developed using WDJ. Please check these.
WDJ:
The specified item was not found.
WDA:
http://www.adobe.com/devnet/sap/
https://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/10989ef6-968c-2b10-50a9-eb34a5267163
https://www.sdn.sap.com/irj/scn/wiki?path=/display/emtech/sapRichIslandsforAdobe+Flash
Regards,
Harini S

Problem instatiating factory implementation when invoking a service in java

Hello,
I' have the following problem: When I invoke a service from java code (it is a customized policy step implementation of a server agent), I get the following exception (some part of the error message description is german because it's a german versin of the SOA Suite, my translations are in []):
error.build.wsdl.model: oracle.j2ee.ws.common.tools.api.WsdlValidationException: modeler error: Problem instantiating factory implementation.:
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Die fehlende Klasse ist in den folgenden Speicherorten verfügbar [The missing class is available in the following location]:
     1. Code-Source: /C:/product/10.1.3.1/OracleAS_1/webservices/lib/orawsdl.jar (from <code-source> (ignore manifest Class-Path) in META-INF/boot.xml in C:\product\10.1.3.1\OracleAS_1\j2ee\home\oc4j.jar)
     Diese Code-Source ist im Loader oracle.jwsdl:10.1.3 verfügbar [This source code is available in loader oracle.jwsdl:10.1.3].
: oracle.classloader.util.AnnotatedClassNotFoundException:
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     Abhängige Klasse [dependent class]: javax.wsdl.factory.WSDLFactory
     Loader: oracle.jwsdl:10.1.3
     Code-Source: /C:/product/10.1.3.1/OracleAS_1/webservices/lib/orawsdl.jar
     Konfiguration: <code-source> (ignore manifest Class-Path) in META-INF/boot.xml in C:\product\10.1.3.1\OracleAS_1\j2ee\home\oc4j.jar
Diese Load wurde um oracle.wsm.agent:10.1.3.1 mit der Methode Class.forName() eingeleitet.
Die fehlende Klasse ist in den folgenden Speicherorten verfügbar:
     1. Code-Source: /C:/product/10.1.3.1/OracleAS_1/webservices/lib/orawsdl.jar (from <code-source> (ignore manifest Class-Path) in META-INF/boot.xml in C:\product\10.1.3.1\OracleAS_1\j2ee\home\oc4j.jar)
     Diese Code-Source ist im Loader oracle.jwsdl:10.1.3 verfügbar.
     at oracle.classloader.PolicyClassLoader.handleClassNotFound (PolicyClassLoader.java:2068) [C:/product/10.1.3.1/OracleAS_1/j2ee/home/lib/pcl.jar (from system property java.class.path), by sun.misc.Launcher$AppClassLoader@10469011]
     at oracle.classloader.PolicyClassLoader.internalLoadClass (PolicyClassLoader.java:1679) [C:/product/10.1.3.1/OracleAS_1/j2ee/home/lib/pcl.jar (from system property java.class.path), by sun.misc.Launcher$AppClassLoader@10469011]
     at oracle.classloader.PolicyClassLoader.loadClass (PolicyClassLoader.java:1635) [C:/product/10.1.3.1/OracleAS_1/j2ee/home/lib/pcl.jar (from system property java.class.path), by sun.misc.Launcher$AppClassLoader@10469011]
     at oracle.classloader.PolicyClassLoader.loadClass (PolicyClassLoader.java:1620) [C:/product/10.1.3.1/OracleAS_1/j2ee/home/lib/pcl.jar (from system property java.class.path), by sun.misc.Launcher$AppClassLoader@10469011]
     at java.lang.ClassLoader.loadClassInternal (ClassLoader.java:319) [jre bootstrap, by jre.bootstrap:1.5.0_06]
     at java.lang.Class.forName0 (Native method) [unknown, by unknown]
     at java.lang.Class.forName (Class.java:242) [jre bootstrap, by jre.bootstrap:1.5.0_06]
     at javax.wsdl.factory.WSDLFactory.newInstance (WSDLFactory.java:75) [C:/product/10.1.3.1/OracleAS_1/webservices/lib/orawsdl.jar (from <code-source> (ignore manifest Class-Path) in META-INF/boot.xml in C:\product\10.1.3.1\OracleAS_1\j2ee\home\oc4j.jar), by oracle.jwsdl:10.1.3]
     at oracle.j2ee.ws.common.processor.modeler.wsdl.WSDLModeler.buildModel (WSDLModeler.java:137) [C:/product/10.1.3.1/OracleAS_1/webservices/lib/wsclient.jar (from <code-source> (ignore manifest Class-Path) in META-INF/boot.xml in C:\product\10.1.3.1\OracleAS_1\j2ee\home\oc4j.jar), by oracle.ws.client:10.1.3]
     at oracle.j2ee.ws.common.processor.config.ModelInfo.buildModel (ModelInfo.java:167) [C:/product/10.1.3.1/OracleAS_1/webservices/lib/wsclient.jar (from <code-source> (ignore manifest Class-Path) in META-INF/boot.xml in C:\product\10.1.3.1\OracleAS_1\j2ee\home\oc4j.jar), by oracle.ws.client:10.1.3]
     at oracle.j2ee.ws.client.dii.ServiceInfoBuilder.getModel (ServiceInfoBuilder.java:196)
at ... ...
at ... ...
Here is the relevant part of my source code:
import javax.xml.rpc.ServiceFactory;
import javax.xml.rpc.Service;
import javax.xml.rpc.Call;
// create service
Service service = null;
try{
     service = factory.createService(wsdlLocation, serviceName);
// HERE (the line above) the exception is thrown!!!!
catch (Exception e) {
Does anybody have an idea what the reason for this problem is and how I can fix it?
Thank you very much,
Stefan

Hello,
I had to add the information, which jar-file has to be used, into the build.xml that is used by the ant script.
Now the missing class problem is solved, but now there is another (similar) problem:
error.build.wsdl.model: oracle.j2ee.ws.common.tools.api.WsdlValidationException: modeler error: Problem instantiating factory implementation.: oracle.webservices.wsdl.WSDLFactoryImpl: java.lang.ClassCastException: oracle.webservices.wsdl.WSDLFactoryImpl
at javax.wsdl.factory.WSDLFactory.newInstance(WSDLFactory.java:77)
at oracle.j2ee.ws.common.processor.modeler.wsdl.WSDLModeler.buildModel(WSDLModeler.java:137)
at oracle.j2ee.ws.common.processor.config.ModelInfo.buildModel(ModelInfo.java:167)
at oracle.j2ee.ws.client.dii.ServiceInfoBuilder.getModel(ServiceInfoBuilder.java:196)
at oracle.j2ee.ws.client.dii.ServiceInfoBuilder.getModel(ServiceInfoBuilder.java:199)
at oracle.j2ee.ws.client.dii.ServiceInfoBuilder.getModel(ServiceInfoBuilder.java:181)
at oracle.j2ee.ws.client.dii.ServiceInfoBuilder.buildServiceInfo(ServiceInfoBuilder.java:114)
at oracle.j2ee.ws.client.dii.ConfiguredService.<init>(ConfiguredService.java:54)
at oracle.j2ee.ws.client.ServiceFactoryImpl.createService(ServiceFactoryImpl.java:43)
at customsteps.StefansAspektStep.invokeService(Unknown Source)
Any ideas? Do I have to set some System properties? What is the reason for this class cast error?

K nearest neighbours

Hi there,
Could anyone tell me how do I get the K nearest neighbours in Oracle 8.1.5 (Spatial)?
I tried using SDO_WITHIN_DISTANCE but it returns me more than K results and I can't order them in distance.
As a related question, could anyone tell me how do I compute the shortest distance between any two SDO_GEOMETRY?
Thanks
Lee

Hi Lee,
There are easy ways to find the nearest neighbors as well as getting the minimum distance between two geometries, but it involves upgrading to Oracle Spatial 8.1.6.
In 8.1.6 there is a new operator (SDO_NN) that returns n nearest neighbors where n is specified in the query.
Similarly, there is a function sdo_geom.sdo_distance that returns the distance between the closest points or segments of two geometries.
This upgrade would be your best bet regarding the functionality you are looking for. There are also other improvements in the product you could look for in 8.1.6.
Hope this helps, and regards,
Dan
null

Bugy nearest neighbour spatial query?

Hi,
I have the following problem. The last query below returns the bad number of rows and I suspect some RDBMS bug behinde this, but am not really shure. Could some one please have a look?
-- Preparation steps:
-- Create 'Varos' Table
CREATE TABLE VAROS (
GMIPRIMARYKEY NUMBER (10) NOT NULL,
TNEV VARCHAR2 (50),
NEV VARCHAR2 (50),
GEOMETRY MDSYS.SDO_GEOMETRY,
PRIMARY KEY ( GMIPRIMARYKEY ));
-- Insert 5 records
--           2 have no name (nev attribute contains 'nincs neve')
--          3 have meaningful name
insert into varos values (615484,'Kisszentmarton','58131',MDSYS.SDO_GEOMETRY(2002,NULL,NULL,MDSYS.SDO_ELEM_INFO_ARRAY(1,2,1),MDSYS.SDO_ORDINATE_ARRAY(18.04725,45.788384,18.04698,45.786578)));
insert into varos values (617351,'Czn','nincs neve',MDSYS.SDO_GEOMETRY(2002,NULL,NULL,MDSYS.SDO_ELEM_INFO_ARRAY(1,2,1),MDSYS.SDO_ORDINATE_ARRAY(18.060483,45.785141,18.060615,45.784949,18.06079,45.783938,18.061508,45.782226,18.061641,45.781539,18.061686,45.780696,18.061677,45.780531)));
insert into varos values (617352,'Czn','nincs neve',MDSYS.SDO_GEOMETRY(2002,NULL,NULL,MDSYS.SDO_ELEM_INFO_ARRAY(1,2,1),MDSYS.SDO_ORDINATE_ARRAY(18.061677,45.780531,18.061638,45.779749,18.061463,45.778458,18.061103,45.777196,18.060708,45.776133,18.060355,45.775182)));
insert into varos values (622732,'Vejti','Tancsics Mihaly utca',MDSYS.SDO_GEOMETRY(2002,NULL,NULL,MDSYS.SDO_ELEM_INFO_ARRAY(1,2,1),MDSYS.SDO_ORDINATE_ARRAY(17.964469,45.809845,17.964149,45.809448,17.9641,45.809356,17.964009,45.809186,17.964004,45.808933,17.964007,45.808886,17.964169,45.808335,17.964781,45.807061,17.965233,45.806119,17.965492,45.805637,17.965682,45.805283,17.965802,45.805063,17.965932,45.804825,17.966221,45.804298)));
insert into varos values (629498,'Pisks','5821',MDSYS.SDO_GEOMETRY(2002,NULL,NULL,MDSYS.SDO_ELEM_INFO_ARRAY(1,2,1),MDSYS.SDO_ORDINATE_ARRAY(17.912804,45.80585,17.913105,45.805645,17.922503,45.803835,17.935384,45.803584)));
-- Insert metadata record
insert into USER_SDO_GEOM_METADATA values('VAROS','GEOMETRY',MDSYS.SDO_DIM_ARRAY( MDSYS.SDO_DIM_ELEMENT('Lon',16,23,0.00000001),MDSYS.SDO_DIM_ELEMENT('Lat',45.5,48.8,0.00000001)),NULL);
-- Commit
commit;
-- Create spatial index
CREATE INDEX VAROS_INDEX ON VAROS(GEOMETRY) INDEXTYPE IS MDSYS.SPATIAL_INDEX PARAMETERS('SDO_LEVEL=10 SDO_NUMTILES=8');
-- Test steps:
-- Select records with not 'nincs neve'
select gmiprimarykey,tnev,nev
     from varos
     where nev <> 'nincs neve';
-- It fetches 3 records
-- 615484,Kisszentmarton,58131
-- 622732,Vejti,Tancsics Mihaly utca
-- 629498,Pisks,5821
-- Right.
-- Embed the above select statement as a subselect to a nearest-neighbour spatial query.
-- It is requested to return the 3 nearest records ('sdo_num_res=3').
select gmiprimarykey,tnev,nev
     from ( select gmiprimarykey,tnev,nev,geometry
               from varos
               where nev <> 'nincs neve'
          ) y
     where mdsys.SDO_NN(y.geometry,mdsys.sdo_geometry(2001,NULL,mdsys.sdo_point_type(18,45.5,0),NULL,NULL),'sdo_num_res=3')='TRUE';
-- It is expected to return 3 records (the same ones as above), but it returns only 1 single record
-- 615484,Kisszentmarton,58131
-- Wrong.
It seems that Oracle executes the neaest neighbour spatial query BEFORE evaluating the inline view.
Regards,
Tamas Szecsy
[email protected]

Hi,
The nearest neighbor query has to use the spatial index, and there is no way to filter the results and
use the spatial index.
So, in Oracle9i the SDO_NN tuning parameter SDO_BATCH_SIZE was introduced - what this does is
keep streaming results from the SDO_NN query until some other condition is met.
Rewriting your query to use SDO_BATCH_SIZE:
select gmiprimarykey,tnev,nev
from varos y
where mdsys.SDO_NN(y.geometry,
mdsys.sdo_geometry(2001,NULL,mdsys.sdo_point_type(18,45.5,0),NULL,NULL),
'sdo_batch_size=5')='TRUE'
and nev <> 'nincs neve'
and rownum < 4;
Two things about SDO_BATCH_SIZE:
Cannot be used with SDO_NUM_RES
Requires an R-tree index
Also, you are using hybrid quadtree indexes. At this point in time, there are almost no situations where
Oracle recommends using hybrid quadtree indexes (this is true in all versions of Oracle Spatial).
As of Oracle9i, the recommendation is to use R-tree indexes (which work as well or better than
quadtree indexes most of the time). Certainly if you require the incremental nearest neighbor functionality
described above then you need to use an R-tree index.
If you must use a quadtree index, then you will still have to use sdo_num_res, but you should try to set the
number large enough so that any filtering leaves enough in the result set.

Implementation of a parse tree in java (HELP!!!)

I want to be able to do this in java, please how can i implement this.
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Implementation of a parse tree in Java (Urgent)

How best can a parse tree be implemented in java, i have read some online information that suggest use of data structures, but i am still not clear on how to do it.

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How can I implement the connection pool in my java stored procedure

my java stored procedures (in database 'B') have to connect to another oracle database ,let's say 'A'. And how can I implement the behavior like the so-called connection pool in my java stored procedure in 'B', as below.
1. database B, has 2 java stored procedures sp1 and sp2
2. both sp1 and sp2 connects to databse 'A'
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THANKS A LOTS...

my problem is I have a lots of java stored procedures need to cnnect to the remote oracle db, and I hope the remote db can only have a connected session from my java stored procedures in my local db. I try as below
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Hello,
I am in need of implementing the following C language code under Java...
short len;
struct
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    char data_len[2];
} tcp_hdr;
len = 257;
memcpy(&tcp_hdr.trans_id[0], "SURV", 4);
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Hello,
I am in need of implementing the following C language
code under Java...
short len;
struct
char trans_id[4];
char trans_filler[46];
char data_vector[2];
char data_len[2];
} tcp_hdr;
len = 257;
memcpy(&tcp_hdr.trans_id[0], "SURV", 4);
memset(&tcp_hdr.trans_filler[0], NULL,
sizeof(tcp_hdr.trans_filler);
tcp_hdr.data_vector[0] = 0x00;
tcp_hdr.data_vector[1] = 0x08;
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I thought I would throw this out and see if anyone
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Thanks.
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Kaj

How to implement a print screen through a java program rather than a keyboa

help needed urgently to make a college project.
have to capture whatsoever is on the client screen
and sent it to to a server program where it will be made visible on a frame or panel.
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e mail: [email protected]

<pre>
hartmut
i need help.
i've recently started using the web to learn more about java.your reply was very discouraging.
the proff. just wants a decent project.
but i want to make this project to improve my java networking skills.
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mail: [email protected]
</pre>

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Regards
Anoop

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cheers...

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I know, this IS a homework assignment - I am not sure how to go about this. I DO have code so far up to this point, can anyone help?
import dLibrary.*;
import java.awt.Color;
* @author Rob
* @version 8/18/03
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I am getting a " can't resolve symbol" when I do thisYou have to either import java.util.ArrayList or specify it fully, e.g., "new java.util.ArrayList()".
Is that the line that is causing you problems? The error message should give the line number.
my instructions also say I have to use "interface
java.util.List when declaring your reference" so I am
confused about using "= new ArrayList();"What they're saying is that you want code like this:
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//... later on...
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This is good programming style for reasons I don't have the space to explain here.

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Hello Experts,
We have a requirement in which the client want to search with the help of TREX in webdynpro for java application. Can you please help how we can connect webdynpro for java with TREX.
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Vivek

Hi Robin,
I have connected the KM with webdynpro java application with the help of following url.
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SDO_NN - Nearest neighbour geometry based on condition

Hi All,
I have two spatial tables SPL_ROADS and SPL_VILLAGES which stores the road and village information respectively. There are 4 categories of roads – NH, SH, MDR and VR. These are stored in same table (SPL_ROAD). Now I need a query to get nearest NH, nearest SH, nearest MDR and nearest VR and distance for selected villages or for all the villages.
I am using below query to get nearest road for all the villages.
SELECT /*+ LEADING(sv) */
sv.name, sr.name, trunc(SDO_NN_DISTANCE(1),2) dist
FROM spl_roads sr,
spl_villages sv
WHERE
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But if I query for nearest NH using below query, it returns null.
SELECT /*+ LEADING(sv) */
sv.name, sr.name, trunc(SDO_NN_DISTANCE(1),2) dist
FROM spl_roads sr,
spl_villages sv
WHERE sr.category = 'NH'
SDO_NN(sr.geom, sv.geom,'sdo_num_res=1 unit=KM', 1) = 'TRUE' ORDER BY 1;
Please suggest me to get nearest road based on categories. I am expecting results in below format.
ROAD_ID | NAME | Nearest NH | distance from NH| Nearest SH | distance from SH | Nearest MDR |distance from MDR| Nearest VR| distance from VR
Thanks,
Sujnan

Hi,
Yes. The query takes very long time. I have written PL/SQL function to do this. Here I have to return multiple values from function. For this I have created user type called VILL_NN_ROAD_OBJ. The function will return this user type.
Here is user type and pl/sql function script.
CREATE OR REPLACE TYPE VILL_NN_ROAD_OBJ is object (
nh_road_id varchar2(50),
nh_dist number(10,2),
nh_road_name varchar2(250),
nh_road_num varchar2(50),
sh_road_id varchar2(50),
sh_dist number(10,2),
sh_road_name varchar2(250),
sh_road_num varchar2(50),
mdr_road_id varchar2(50),
mdr_dist number(10,2),
mdr_road_name varchar2(250),
mdr_road_num varchar2(50),
odr_road_id varchar2(50),
odr_dist number(10,2),
odr_road_name varchar2(250),
odr_road_num varchar2(50)
REATE OR REPLACE FUNCTION WEBRISNEW.GETNNROAD(inGeom SDO_GEOMETRY, in_year_id VARCHAR2) RETURN VILL_NN_ROAD_OBJ
IS
nnobj VILL_NN_ROAD_OBJ;
--nntab VILL_NN_ROAD_TAB;
BEGIN
nnobj:=VILL_NN_ROAD_OBJ(null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null);
SELECT /*+ INDEX(a SPL_ROAD_TEMP_GEOM_IDX) */
rd.kpwd_road_id, rd.kpwd_road_name, rd.kpwd_road_num, SDO_NN_DISTANCE(1) INTO
nnobj.nh_road_id, nnobj.nh_road_name, nnobj.nh_road_num, nnobj.nh_dist
FROM spl_roads sr inner join road_link_year_assoc rlya on sr.mslink = rlya.mslink
inner join kpwd_ns_road_details rd on rd.kpwd_road_id = rlya.kpwd_road_id and
rd.year_id = rlya.year_id and rlya.year_id=in_year_id and
rd.kpwd_road_category=1
WHERE SDO_NN(sr.geom, inGeom, 'sdo_batch_size=10 unit=km',1)='TRUE'
and ROWNUM <2;
SELECT /*+ INDEX(a SPL_ROAD_TEMP_GEOM_IDX) */
rd.kpwd_road_id, rd.kpwd_road_name, rd.kpwd_road_num, SDO_NN_DISTANCE(1) INTO
nnobj.sh_road_id, nnobj.sh_road_name, nnobj.sh_road_num, nnobj.sh_dist
FROM spl_roads sr inner join road_link_year_assoc rlya on sr.mslink = rlya.mslink
inner join kpwd_ns_road_details rd on rd.kpwd_road_id = rlya.kpwd_road_id and
rd.year_id = rlya.year_id and rlya.year_id=in_year_id and
rd.kpwd_road_category=2
WHERE SDO_NN(sr.geom, inGeom, 'sdo_batch_size=10 unit=km',1)='TRUE'
and ROWNUM <2;
SELECT /*+ INDEX(a SPL_ROAD_TEMP_GEOM_IDX) */
rd.kpwd_road_id, rd.kpwd_road_name, rd.kpwd_road_num, SDO_NN_DISTANCE(1) INTO
nnobj.mdr_road_id, nnobj.mdr_road_name, nnobj.mdr_road_num, nnobj.mdr_dist
FROM spl_roads sr inner join road_link_year_assoc rlya on sr.mslink = rlya.mslink
inner join kpwd_ns_road_details rd on rd.kpwd_road_id = rlya.kpwd_road_id and
rd.year_id = rlya.year_id and rlya.year_id=in_year_id and
rd.kpwd_road_category=2
WHERE SDO_NN(sr.geom, inGeom, 'sdo_batch_size=10 unit=km',1)='TRUE'
and ROWNUM <2;
SELECT /*+ INDEX(a SPL_ROAD_TEMP_GEOM_IDX) */
rd.kpwd_road_id, rd.kpwd_road_name, rd.kpwd_road_num, SDO_NN_DISTANCE(1) INTO
nnobj.odr_road_id, nnobj.odr_road_name, nnobj.odr_road_num, nnobj.odr_dist
FROM spl_roads sr inner join road_link_year_assoc rlya on sr.mslink = rlya.mslink
inner join kpwd_ns_road_details rd on rd.kpwd_road_id = rlya.kpwd_road_id and
rd.year_id = rlya.year_id and rlya.year_id=in_year_id and
rd.kpwd_road_category=2
WHERE SDO_NN(sr.geom, inGeom, 'sdo_batch_size=10 unit=km',1)='TRUE'
and ROWNUM <2;
-- dbms_output.put_line(dist || '--' || local_gid);
--insert into temp_vill_roads(vill_mslink, road_name)
--values (local_gid, item.mslink);
-- nntab:=VILL_NN_ROAD_TAB(nnobj);
return nnobj;
END;
Here queries inside function selects nearest road of different road categories and distance from and village.
select getnnroad(geom, '1999-2000') from spl_major_villages where rownum<3
If I run above query I get below results.
GETNNROAD(GEOM,'1999-2000')
(BJP3, 59.24, NH218 Bijapur Hubli Road, NH218, AFZ1, 166.67, SH22 Gulbarga Hosur upto State Border Road, SH22, AFZ1, 166.67, SH22 Gulbarga Hosur upto State Border Road, SH22, ATN1, 2.46, SH12 Jevaragi Chikkodi Sankeshwar Road, SH12)
(HUK1, 62.84, NH4 Madras Bangalore Poona Road (Bangalore Section), NH4, AFZ1, 195.44, SH22 Gulbarga Hosur upto State Border Road, SH22, AFZ1, 195.44, SH22 Gulbarga Hosur upto State Border Road, SH22, AFZ1, 194.54, SH22 Gulbarga Hosur upto State Border Road, SH22)
But I need these values as individual columns. I can run below query to do this but I think it is not efficient method.
select getnnroad(geom, '1999-2000').NH_ROAD_ID, getnnroad(geom, '1999-2000').NH_ROAD_NAME,
getnnroad(geom, '1999-2000').NH_ROAD_NUM from spl_major_villages where rownum<3
If I run below query, it says invalid identifier.
select t.NH_ROAD_ID from (
select getnnroad(geom, '1999-2000') t from spl_major_villages where rownum<3)
Please suggest me an efficient solution to do this.
Thanks,
Sujnan

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