Semantic Technologies :: User-defined Function In FILTER Clause?
Apr 28, 2013
can i create the user-defined functions and use them in the FILTER clause in the sem_match function? there are some built-in functions for the FILTER clasue. however, only one function (DATATYPE(literal)) support for date/time in the built-in functions. i want to implement some user-defined funcitons in the FILTER clause which can check time intervals in ontology. there are some functions about valid time in the WorkSpace Manager such as WM_OVERLAPS, WM_CONTAINS,WM_MEETS, etc. so, can i write some functions using the these valid time functions in WM and use them in the FILTER clause?
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Apr 17, 2013
I'm new in the group and no have much experience in Spatial area.
I'm looking for information about the posibility of use google places apis to get point of interest from Oracle Spatial / MapBuilder / MapViewer in order to use point of interest from google with own spatial information.
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Jul 23, 2013
We want to convert our application from Jena TDB to Oracle. In our ontology there are 40.000 triples. Oracle takes 6.8 sec. while Jena TDB takes 0.59 sec. Oracle is much slower than jena TDB. You can see both codes below. There are no inferencing for both apps. How can I improve the performance of Oracle?
Both applications and their data sources are running on same machine.
Oracle code:Oracle oracle = new Oracle(szJdbcURL, szUser, szPasswd); Attachment attachment1 = Attachment.createInstance( new String[] { szSchemaName, szImpactName }, new String[] { }, InferenceMaintenanceMode.NO_UPDATE, QueryOptions.DEFAULT); graph1 = new Graph Oracle Sem(oracle, szModelName, attachment1);m = new ModelOracleSem(graph1); listSubclass = m.listStatements(null,)
[code]....
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Oct 13, 2013
I am using Oracle 12c Spatial and Graph and I would like to retrieve the nearest neighbors of a point from a dataset encoded according to GeoSPARQL.I have created a spatial index on the datatype geo:wktLiteral and I to the query so the optimizer pick a plan using the index RDF_V$GEO_IDX. The query I pose is the following:
SELECT geo, wkt
FROM TABLE(SEM_MATCH('
PREFIX geo: <http://www.opengis.net/ont/geosparql#>
SELECT ?geo ?wkt
[code]...
I do not get any error but I do not get any results neither. However, there are a lot of points around POINT(22.39 38.25) in my dataset and if I remove the filter I get results.Do I use orageo:nearestNeighbor in a wrong way?
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Jul 19, 2012
I was trying to execute a SPARQL through Jena API. I am getting the following exception when invoking the
"ResultSetFormatter.out(System.out, results);" method.
I connect to Oracle using the following Jena code
============================================
Oracle oracle = new Oracle(szJdbcURL, szUser, szPasswd);
Model model = ModelOracleSem.createOracleSemModel(
oracle, szModelName);
==============================================
This is the exception I am getting.
java.lang.NullPointerException
at oracle.spatial.rdf.client.jena.OracleRepeatApply.nextStage(OracleRepeatApply.java:794)
at com.hp.hpl.jena.sparql.engine.iterator.QueryIterRepeatApply.makeNextStage(QueryIterRepeatApply.java:101)
at com.hp.hpl.jena.sparql.engine.iterator.QueryIterRepeatApply.hasNextBinding(QueryIterRepeatApply.java:53)
[code].....
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Mar 7, 2013
I'm currently doing migration from Oracle 10gR2 RDF to Oracle 11gR2 Semantic Technology.I followed the steps on the documentation and successfully created the network using the following:
-----
EXECUTE SEM_APIS.CREATE_SEM_NETWORK('rdf_tblspace');
CREATE TABLE rdf_network_trace (id NUMBER, triple SDO_RDF_TRIPLE_S);
--Created SEQUENCE andTRIGGER FOR rdf_network_trace id
[code]....
when I looked at my Node Ids, they were like +635762253807433724+, +6118969225776891730+. The problem is, I am not the one who is assigning Node Ids, They were automatically generated when inserting TRIPLE data to the rdf table.
Did I miss something when I created my network?
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Dec 22, 2012
I got an exception when I was using sesame adapter to dump a turtle file which contains long texts as objects into oracle semantic database. The exception information is:
org.openrdf.repository.RepositoryException: org.openrdf.sail.SailException: java.sql.SQLException: ORA-01461: can bind a LONG value only for insert into a LONG column
ORA-06512: in "SF.ORACLE_ORARDF_ADDHELPER", line 1
ORA-06512: in line 1
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:439)
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:395)
at oracle.jdbc.driver.T4C8Oall.processError(T4C8Oall.java:802) ...
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Apr 12, 2012
I have made a function to add two number create or replace function add_num(a in number, b in number) return number
as
begin
return a+b;
end;
/
i run it via
select add_num(2,5) from dual;
my question is how to call add_num in procedure.
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Jan 12, 2012
If a user defined function in Oracle may throw and catch exceptions depending on input, now does the Oracle logs the exception? Fundamentally we are asking if Oracle logs any random DML errors (not bulk operation). We hope not, as we do not want our client DBA get concerned. There might be many levels of settings in Oracle to log or not log. So if Oracle may log it depending on setting, how do we suppress it either at Oracle specific schema level, or function level?
This is my user defined function:
create or replace FUNCTION ISNUMERIC(char_in CHAR) RETURN NUMBER IS
n NUMBER ;
BEGIN
n := TO_NUMBER(char_in);
RETURN 1;
EXCEPTION
WHEN OTHERS THEN
RETURN 0;
END;
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Sep 26, 2012
In one of the interviews , I have attended the guy asked me to write a user defined function which will take the column name and list all the values .
For example
Table Name:Employees
Column Name: Employee_Name
Employee_name
Scott
Ivgun
Jack
Shane
The query should be in this fromat
SELECT col_agg(Employee_name) emp_name from Employees;
The output should be
Emp_names
scott,ivgun,jack,shane
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May 29, 2013
Want to filter a data using CASE statement in WHERE clause for the following scenario.
Need to Filter tb1.fallback_keyword if the fallback_flag is "Y' or 'N' and pg_number is null.Else no partial search of keyword.
where CASE WHEN (fallback_flg = 'Y' OR fallback_flg = 'N') and (pg_number is NULL )
THEN tb1.fallback_keyword = SUBSTR(key_word,1, INSTR(key_word,'#',-2))
ELSE (tb1.keyword = key_word ) AND (tb1.keyword like regexp_replace(key_word, '[*]+', '%'))
END
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Jun 19, 2012
I am trying to create a new data type but keeping getting a ORA-0902 invalid data type error. I am using the example show at:
Guess I cannot post a link until I have posted more than 5 messages so here is the link another way:
www(dot)psoug.org/reference/type.html
Specifically, all the steps work up to Create Table which fails with the error.
By work -- I mean the type gets created & the 3 select statements prior to Create Table confirm the existence of the ssn_t data type.
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Jun 19, 2012
I am trying to create & use a new data type but keep getting a ora-0902 invalid data type error running on 10g express. The create type and select statements execute fine and select confirms the ssn_t is a type. The create table statement fails with the invalid data type error.
Here is an example.
CREATE TYPE ssn_t AS OBJECT ssn_type CHAR(11));
SELECT object_name, object_type
FROM user_objects WHERE object_type = 'TYPE';
CREATE TABLE Z (A CHAR(4), B SSN_T);
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Oct 13, 2009
That is I have created the User Defined Data Type as following. CREATE OR REPLACE TYPE Bit_Type AS OBJECT(Bit NUMBER(1,0));
After completing this creation of new UDT, I am trying to create the table with this UDT as follows, CREATE OR REPLACE TABLE Sample_Bit ( RegID Bit_Type);
I received an Error Message like:
SQL Error: ORA-22913: must specify table name for nested table column or attribute
22913. 00000 - "must specify table name for nested table column or attribute"
*Cause: The storage clause is not specified for a nested table column or attribute.
*Action: Specify the nested table storage clause for the nested table column or attribute.
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Dec 28, 2010
Is it possible to easily set up a single User Defined Metric, to monitor all the users quotas? I know I can do it, if I make individual metrics for each user. But was hoping there was a simple way of combining them all into a single metric.
I am using Oracle 10G2 Standard Edition on a windows 2003 Server.
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Jun 29, 2011
I'm calculating a Z score based on some simple numerical data thus:
create table t (id number, val number);
insert into t values(1, 1795);
insert into t values(2, 1753);
insert into t values(3, 1743);
insert into t values(4, 1876);
insert into t values(5, 1848);
[Code] .....
the logic is quite simple - calculate a moving average over the previous 12 rows, and a stdev over the same window. Then subtract the prior row's moving average from the current value, and divide by the prior row's stdev.
The issue is I want to expose this logic in a BI tool (OBI EE v10g), meaning I can't use the nested analytic functions. How to achieve this logic in a single analytic pass? The sql above took about 2 minutes to write this morning, then I've spent all day looking at user-defined aggregate functions, but haven't even been able to get the first step, the moving average, working. I can understand that I can probably create an udaf to replicate the avg(val) over (order by id ROWS BETWEEN 11 PRECEDING AND 0 FOLLOWING) functionality, but I can't see how to bundle the logic for the other three steps in the calculation into this.
From what I've read, the ODCIAggregateMerge should allow me to combine different threads that can return the different values I need for the current row calculation. Is this correct?
The only example udafs I can find are either not relevant (STRAGG) or very simple (ie don't appear to invoke multiple passes). I've also had a look at the COLLECT function, but again I can't see a way to use this.
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May 3, 2011
I have designed a Login form which takes username, password and connect string is hardcoded.I have compiled it, made an fmx file. created a shortcut to desktop. given the BIN path in shortcut.
when i want to lauch it, oracle's default login popup is shown.It can be by passed while defining username/password@string in shortcut properties but it reveals the password. every one can access it. I want to launch my own form without logging in to oracle. how can i avoid default login popup?
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Jan 25, 2011
Can we able to declare a user define exception name as per defined exception name?Ex: we have predefined exception called :"NO_DATA_FOUND "
Now in my PL/SQL block can i able to declare "NO_DATA_FOUND" like
Begin
no_data_found exception;
//statements
raise no_data_found;
end
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Aug 25, 2012
Through sql*plus, how can I copy a user-defined type from other schema to mine?
I've granted the execute object privilege over the user-defined type to my user, so I can use the type.
I know I can manually write and create the type, but I wanna learn (if exist) a statement to copy the user-defined type, something like:
CREATE TABLE x2 AS
(SELECT *
FROM x1);
I'm testing ORACLE DATABASE 11g R2 over Windows O. S.
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Jun 22, 2010
I am migrating sybase to oracle database. A Java developer needs money datatypes.I said to them, please change the cast(<value> as number(19,4) in java code side. but they are not accepted because money data type is used most of the places.
select cast(0 as money) from bank_trans; this sql statements present in java code. I need to create user defined type is equivalent to money datatype.
My steps
I have create user defined data types
create or replace type money as object(money as numbeer(19,4)
select cast(0 as money) from dual;
it shows inconsistent datatypes error.
create or replace type money is table of numbeer(19,4);
select cast(0 as money) from dual;
it shows inconsistent datatypes error.
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Nov 25, 2012
How can I apply a user metric for DB (single database) using a script or cli?
clear my question:
Can I create a User Defined Metric using SQL code, and not via the graphical interface?
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Dec 18, 2010
I'm attempting configure User-defined Metric to send mails when happen warning or critical alerts .My environment is Cluster Database and I'm using OEM Grid Control
I created User-defined Metric for monitoring invalid object for example and scheduled this collect to every 5 minutes.On initial OEM page, I see alert violation, but don't receive mail for this. In my Notification Rules page, I added "User-Defined Numeric Metric" and includes object Check_Invalid_Objects, wich is my UDM.I receive several alerts violations, but don't UDM.
UDM_Violation.png ( 116.68K )
Number of downloads: 0
NotificationRule.jpg ( 218.78K )
Number of downloads: 0
ScheduleNotification.jpg ( 373.64K )
Number of downloads: 0
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Sep 7, 2012
how to define user defined exceptions for cases like, ==> when anyone tries to insert string values without using single quotation marks " '...' "? ==> update the column which is not present in table.
how can I define user defined exceptions for such cases?
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Sep 24, 2012
Is it Possible to create User - defined Search forms in runtime oracle forms 6i . If One Having sample Forms
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Dec 2, 2010
I need to transfer PL/SQL or NESTED table from LOCAL database to REMOTE.I need to be able to use that transfered table in SELECT statement.I tried:
--ON LOCAL
SELECT SYS_OP_GUID() FROM DUAL;
--966D2DFEAEEB80D6E0430A0166CB80D6
create or replace type varchar_number_oid OID '966D2DFEAEEB80D6E0430A0166CB80D6' as object (
v varchar2(10),
i number);
/
Type created
SELECT SYS_OP_GUID() FROM DUAL;
--966D2DFEAEFB80D6E0430A0166CB80D6
[code]....
I tried using PL/SQL types it worked, but then i have a problem that i can not use local collection in SQL.
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Dec 19, 2011
Is it possible to hide/suppress an user defined alert message in Oracle Forms application?
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May 9, 2003
I am having a OCCI problem, I try to retrieve a collection of user-define objects.
The major steps I am using are
1. define database object
CREATE OR REPLACE TYPE my_obj_t AS OBJECT
( id number, name varchar2(10) )
CREATE OR REPLACE
TYPE my_obj_tab_t as table of my_obj_t;
2. A stored procedure return a collection as out paramerter
my_stored_procedure(obj_list out my_obj_tab_t);
3. Using OTT to generate the *.cpp and header files.
4. Register out parameter like
vector<my_obj_t> vect;
stmt->registerOutParam(1, OCCIVECTOR,
sizeof (vect),
"MY_OBJ_TAB_T");
5. stmt->execute();
6. Try to get the results by
getVector(stmt, 1, vect);
I am getting compilation error:
Could not find a match for
oracle::occi::getVector(oracle::occi::Statement*,
int, std::vector<my_obj_t, std::allocator<my_obj_t>>).
Am I doing the right things ?What steps and function should I use ?
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Oct 16, 2013
I have this requirement, I have a following Record type within a package, instead of selecting datas into this i need to assign variables to this record type
TYPE xx_delivery_detail_rectype IS RECORD ( p_delivery_id NUMBER, p_ultimate_dropoff_location_id NUMBER, p_creation_date DATE, p_last_update_date DATE, p_container_name VARCHAR2 (30), p_inventory_item_id NUMBER, p_shipped_quantity NUMBER, p_shipment_line_id NUMBER ); TYPE xx_delivery_table_rectype IS TABLE OF xx_delivery_detail_rectype INDEX BY BINARY_INTEGER;
Say i have variables to assign to all the values within the record type, How do i do it within the package
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Jan 22, 2013
I am using oracle 10g version 10.2.0.1.0.
Can I use user-defined functions in my sql*loader control file and load in DIRECT path mode?
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Jul 5, 2013
I have a two different Databases. I created a db link in DB 1 to connect to DB 2 and it is working fine when I select data from any table. but I have one table in the DB2 which has a column with user defined data type . so when I try to select this column from DB 2 by using the DB link it gives me this error :ORA-22804 remote operations not permitted on object tables or user-defined type columns.
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