BUG ? : ADF creating extra VO instance using bind variables in a LOV query

ADF 11.1.1.1.0
After "playing around" with bind variables Setting bind variables in view objects for LOV I've come across something strange that I've reproduce using the HR schema and tables Employees and Departments. Its a bit long but here goes :
Using the HR schema tables departments and employeesI'm trying to create a LOV (selectOneChoice) for the
employee department, the LOV having a bind variable that limits the values returned in this case returning only DepartmentId = 50
I've create a VO lovDepartment (not based on an EO) with the following query :
SELECT Departments.DEPARTMENT_ID,
       Departments.DEPARTMENT_NAME,
       Departments.MANAGER_ID,
       Departments.LOCATION_ID
FROM DEPARTMENTS Departments
where DEPARTMENT_ID = :pDeptIdA LOV has been defined on the DepartmentId attribute of the EmployeesView.
The lovDepartmentImpl overrides the executeQueryForCollection to set the bind variable value.
    @Override
    protected void executeQueryForCollection(Object object, Object[] object2,
                                             int i) {
        setNamedWhereClauseParam("pDeptId", "50");
        super.executeQueryForCollection(object, object2, i);
    }When using an ADF form to create a new employee the DepartmentId lov is empty.
Enabling SQL tracing shows the following :
[370] _LOCAL_VIEW_USAGE_model_EmployeesView_lovDepartment1_0 ViewRowSetImpl.doSetWhereClause(-1, pDeptId, null)
[371] _LOCAL_VIEW_USAGE_model_EmployeesView_lovDepartment1_0 ViewRowSetImpl.execute caused params to be "un"changed
[372] Column count: 4
[373] _LOCAL_VIEW_USAGE_model_EmployeesView_lovDepartment1_0 ViewRowSetImpl.doSetWhereClause(-1, pDeptId, null)
[374] _LOCAL_VIEW_USAGE_model_EmployeesView_lovDepartment1 ViewRowSetImpl.setNamedWhereClauseParam(pDeptId, 50)
[375] ViewObject: _LOCAL_VIEW_USAGE_model_EmployeesView_lovDepartment1 Created new QUERY statement
[376] _LOCAL_VIEW_USAGE_model_EmployeesView_lovDepartment1>#q computed SQLStmtBufLen: 235, actual=195, storing=225
[377] SELECT Departments.DEPARTMENT_ID,
       Departments.DEPARTMENT_NAME,
       Departments.MANAGER_ID,
       Departments.LOCATION_ID
FROM DEPARTMENTS Departments
where DEPARTMENT_ID = :pDeptId
[378] Bind params for ViewObject: _LOCAL_VIEW_USAGE_model_EmployeesView_lovDepartment1
[379] For RowSet : _LOCAL_VIEW_USAGE_model_EmployeesView_lovDepartment1_0
[380] Binding null of type 12 for "pDeptId"
[381] No Resource Bundle found but null value id:LOV_DepartmentId_LOVUIHints_NullValueId is defined in an ListBinding Definition.It would seem that 2 lovDepartment instances are used one at line 370 LOCALVIEW_USAGE_model_EmployeesView_lovDepartment1_0
and one at line 374 LOCALVIEW_USAGE_model_EmployeesView_lovDepartment1
The one at line 374 LOCALVIEW_USAGE_model_EmployeesView_lovDepartment1 gets the variable bound at line 374
however LOCALVIEW_USAGE_model_EmployeesView_lovDepartment1_0 gets a null value and would explain the empty LOV
Can anybody explain what is happening here ? (and how to use bind variables in LOV queries)
Regards
Paul
(bump)
Edited by: Paul (MITsa) on Jul 14, 2009 10:46 AM
I've now tried all types of LOV from ChoiceList to Radio groupe by testing the application module - none of them work.....
Edited by: Paul (MITsa) on 14-Jul-2009 22:52

when you rinvoke executeQueryForCollection the bind variables are allready set and they exist in Object[] object2 method parameters.
in order to change them you need something like:
private void changeGenericBindVariable(Object[] params, String paramName, Object paramValue) {
for (int i = 0; i < params.length; i++) {
if (paramName.equals(((Object[])params)[0].toString()))
((Object[])params[i])[1] = paramValue;
* executeQueryForCollection - overridden for custom java data source support.
protected void executeQueryForCollection(Object qc, Object[] params,
int noUserParams) {
changeGenericBindVariable(params, "pDeptId", "50")
super.executeQueryForCollection(object, object2, i);
But its better to set bind variables before you executeQueryForCollection. like when you invoke LOV.
For cascading LOVs and the problems i have check:
[http://adfbugs.blogspot.com/2009/07/jdeveloper-11-r1-cascading-lov-bugs.html]

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Don't duplicate threads: How to use bind variables in the following query

How to bind variables to a LOV query

Hi,
I have a page with a messageLOVInput field. I have attached an external LOV with it. The query attached to the LOVregion has a bind parameter which should be replaced by the logged in Person's Business Group ID.
I have done all the required LOV Mappings etc for a normal LOV.
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Hi Deb,
Heres what you gotta do.
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Rgds,
Venkatesh
Message was edited by:
Venkatesh

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Hi people !
I need some help because I have an issue with a query that don t use the right Indexes as it should
First of all, I have mainly three tables :
ORDER : Table that contains description for each Order (approximately 1 000 000 Records)
ORDER_MVTS : Table that contains the tasks made (called movements) to set up each Orders
with quantity of packages prepared for each product (approximately 10 000 000 Records)
PRODUCT : Tables that contains the products (approximately 50 000 Records)
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1 SORT AGGREGATE
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1 SORT AGGREGATE
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AND ORDER_MVTS.MVT_TYPE = 'DELIVERY'
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Edited by: remaï on Apr 1, 2009 4:08 PM

What version of oracle you have? CBO work is different in 9i and 10g.
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Code*
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Hey Roel and Daylocks,
After getting frustrated for a while i deleted the page and started again. I put in the exact same code and it worked just how i wanted in the first place :S
The only thing i did different is when i was creating the report region the first time around i used a normal SQL query, For Example:
select sysdate from dual;
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x VARCHAR2 (4000);
BEGIN
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x := x || 'from ';
x := x || :p14_schema;
x := x || '.ddl_log@';
x := x || :p14_db_name;
x := x || '_DBAAPEX.TNTEWW.COM';
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END;
Whereas on the second attempt i used the peice of code in question straight away. Its been a bit of a frustrating morning because i used a similar peice of code for a different application, nevermind tho :)
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Thanks for the reply.
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Performance when using bind variables

I'm trying to show myself that bind variables improve performance (I believe it, I just want to see it).
I've created a simple table of 100,000 records each row a single column of type integer. I populate it with a number between 1 and 100,000
Now, with a JAVA program I delete 2,000 of the records by performing a loop and using the loop counter in my where predicate.
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loop
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Thanks.

[email protected] wrote:
I'm trying to show myself that bind variables improve performance (I believe it, I just want to see it).
I've created a simple table of 100,000 records each row a single column of type integer. I populate it with a number between 1 and 100,000
Now, with a JAVA program I delete 2,000 of the records by performing a loop and using the loop counter in my where predicate.
Monitoring of v$SQL shows that program one doesn't use bind variables, and program two does use bind variables.
The trouble is that the program that does not use bind variables runs faster than the bind variable program.
Can anyone tell me why this would be? Is my test too simple?
The point is that you have to find out where your test is spending most of the time.
If you've just populated a table with 100,000 records and then start to delete randomly 2,000 of them, the database has to perform a full table scan for each of the records to be deleted.
So probably most of the time is spent scanning the table over and over again, although most of blocks might already be in your database buffer cache.
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You might want to change the setup of your test: Add a primary key constraint to your test table and delete the rows using this primary key as predicate. Then the time it takes to locate the row to delete should be negligible compared to the hard parse / soft parse difference.
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Oracle related stuff blog:
http://oracle-randolf.blogspot.com/
SQLTools++ for Oracle (Open source Oracle GUI for Windows):
http://www.sqltools-plusplus.org:7676/
http://sourceforge.net/projects/sqlt-pp/

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Hi Experts,
How to use bind variables in this procedure for static queries.
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IS
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976208 wrote:
How to use v_date and m_id as bind variables in this procedure to avoid hard parsing.
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</xsd:element>
<xsd:element name="F1Output">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="RETURN" type="xsd:string"/>
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</xsd:complexType>
</xsd:element>
</xsd:schema>
</types>
<message name="F1InputMessage">
<part name="parameters" element="tns:SVARCHAR2-F1Input"/>
</message>
<message name="F1OutputMessage">
<part name="parameters" element="tns:F1Output"/>
</message>
<portType name="F1PortType">
<operation name="F1">
<input message="tns:F1InputMessage"/>
<output message="tns:F1OutputMessage"/>
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</portType>
<binding name="F1Binding" type="tns:F1PortType">
<soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/>
<operation name="F1">
<soap:operation soapAction="F1"/>
<input>
<soap:body parts="parameters" use="literal"/>
</input>
<output>
<soap:body parts="parameters" use="literal"/>
</output>
</operation>
</binding>
<service name="F1Service">
<documentation>Oracle Web Service</documentation>
<port name="F1Port" binding="tns:F1Binding">
<soap:address location="http://localhost:8080/orawsv/XFILES/F1"/>
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-- OK
l_stt := 'select * from xmltable(XMLNAMESPACES(''http://www.w3.org/2001/XMLSchema'' AS "XSD", default ''http://schemas.xmlsoap.org/wsdl/''),
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passing xmltype(:1)
columns
ab xmltype path ''.'' ) t';
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l_name := '"SVARCHAR2-F1Input"';
l_stt := 'select * from xmltable(XMLNAMESPACES(''http://www.w3.org/2001/XMLSchema'' AS "XSD", default ''http://schemas.xmlsoap.org/wsdl/''),
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passing xmltype(:1)
columns
ab xmltype path ''.'' ) t';
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return l_dummy;
END;
Any idea ?
Thanks in advance
Cyryl

Why are you using dynamic SQL statements? Why not just use something like this instead in your PL/SQL. I also replaced the leading // in your Xpath with just / since you start from the root node.
select *
INTO l_dummy
from xmltable(XMLNAMESPACES('http://www.w3.org/2001/XMLSchema' AS "XSD", default 'http://schemas.xmlsoap.org/wsdl/'),
                '/definitions/types/XSD:schema/XSD:element'
                passing xmltype(l_xml)
                columns
                ab xmltype path '.' ) t;Also, the above returns two rows, which I suspect is not what you want. Here is the pure SQL version for you to debug.
select *
from xmltable(XMLNAMESPACES('http://www.w3.org/2001/XMLSchema' AS "XSD", default 'http://schemas.xmlsoap.org/wsdl/'),
               '/definitions/types/XSD:schema/XSD:element'
               passing xmltype('<definitions name="F1" targetNamespace="http://xmlns.oracle.com/orawsv/XFILES/F1" xmlns="http://schemas.xmlsoap.org/wsdl/" xmlns:tns="http://xmlns.oracle.com/orawsv/XFILES/F1" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/">
<types>
<xsd:schema targetNamespace="http://xmlns.oracle.com/orawsv/XFILES/F1" elementFormDefault="qualified">
<xsd:element name="SVARCHAR2-F1Input">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="A-VARCHAR2-IN" type="xsd:string"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="F1Output">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="RETURN" type="xsd:string"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
</xsd:schema>
</types>
<message name="F1InputMessage">
<part name="parameters" element="tns:SVARCHAR2-F1Input"/>
</message>
<message name="F1OutputMessage">
<part name="parameters" element="tns:F1Output"/>
</message>
<portType name="F1PortType">
<operation name="F1">
<input message="tns:F1InputMessage"/>
<output message="tns:F1OutputMessage"/>
</operation>
</portType>
<binding name="F1Binding" type="tns:F1PortType">
<soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/>
<operation name="F1">
<soap:operation soapAction="F1"/>
<input>
<soap:body parts="parameters" use="literal"/>
</input>
<output>
<soap:body parts="parameters" use="literal"/>
</output>
</operation>
</binding>
<service name="F1Service">
<documentation>Oracle Web Service</documentation>
<port name="F1Port" binding="tns:F1Binding">
<soap:address location="http://localhost:8080/orawsv/XFILES/F1"/>
</port>
</service>
</definitions>'
               columns
               ab xmltype path '.' ) t

How to use bind variables in desc flexfields in OA pages?

Use case: In EBS 11i we have a DFF on po_vendors and one of the segment has a table validated value set that is referencing a forms variable i.e :VENDORS.VENDOR_ID. Now after upgrading to R12 this won't work as the vendor pages moved to OA framework. Is there any way to reference the vendor_id column in OA framework?

976208 wrote:
How to use v_date and m_id as bind variables in this procedure to avoid hard parsing.
You cannot avoid hard parsing - as the 1st time a SQL statement (like the SELECT or DELETE statements in your code) is encountered, it does not reside in the server's Shared Pool, and needs to be added into the pool via a hard parse.
Bind variables does not prevent hard parsing. Hard parsing happens when the SQL statement (with or without bind variables) is a brand new statement encountered by the server.
Bind variables enables the same SQL cursor to be reused, by simply changing the bind variable value.
Not using bind variables means that each SQL statement is unique and not shareable - as the value is hardcoded into the statement and cannot be changed via a bind value. This typically means LOTS of different SQL statements (where the only difference is the changed value in the statement) are created - with each statement being a new statement not seen before in the Shared Pool and needing to be hard parsed.
One does not design one's code not to be hard parsed. There ALWAYS will be a hard parse in order to get a SQL statement into the Shared Pool. One designs one's code to REUSE cursors in the Shared Pool.

Using BIND VARIABLES in REF CURSOR(s)

Hello I am having trouble making my pl/sql program work using bind variables.
here is a little snipit from my code:
declare
type ref_type is REF CURSOR;
ref_cursor ref_type;
summation_table varchar2(4000);
begin
summation_table := 'table_sum tsum';
open ref_cursor for
select * from :summation_table
where tsum.revenue = 1000
USING summation_table;
end;
The Error that I get is
"bad bind variable 'summation_table'"
could someone please help? I think the way 'tsum' is used could be a problem, but I don't know.

SQL> CREATE TABLE TABLE_SUM(REVENUE NUMBER(10),
2                         OTHER   NUMBER(10));
Table created.
SQL> INSERT INTO TABLE_SUM VALUES(1000,1);
1 row created.
SQL> INSERT INTO TABLE_SUM VALUES(1000,2);
1 row created.
SQL> variable alpha refcursor
SQL> INSERT INTO TABLE_SUM VALUES(2000,3);
1 row created.
SQL> DECLARE
2     summation_table varchar2(30) := 'table_sum tsum';
3     PROCEDURE MYTEST(p_out out sys_refcursor)
4     IS
5     BEGIN
6       OPEN p_out for 'select * from '||summation_table||
7                      ' where tsum.revenue = :val' using 1000;
8     END;
9 BEGIN
10     MYTEST(:alpha);
11 END;
12 /
PL/SQL procedure successfully completed.
SQL> print alpha
   REVENUE      OTHER
      1000          1
      1000          2
SQL>

How to use Bind Variables in Essbase data control

Hi,
I am trying to use Bind Variables in MDX query while creating the Essbase Data Control. I have used the below query with the Bind Variable.. this query is working in Essbase admin console..but it is throwing error (*Invalid MDX Query)* while creating Essbase Datacontrol in JDeveloper.
MDX Query : SELECT {[Measures].Msr_2} ON COLUMNS, [Time].Children ON ROWS FROM cube
where ($name)
Could any body suggest me on how to use bind variables with Essbase Data control.
Thanks,
Swathi

Hello Swathi, can you please help me how you created Essbase DataControl? Also were you able to figure out this?
Thanks, Praveen.

BUG ? : ADF creating extra VO instance using bind variables in a LOV query

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