Extract the "bind" variables for a given query running in 10g.

how can we extract the "bind" variables for a given query running in 10g? The performance of a query may vary based on the parameters supplied to it. For example, a query like the following
SELECT * FROM CUSTOMER_ORDERS WHERE CUSTOMER = :CUST_ID
.might run differently when the :CUST_ID is "123" who may have very few orders versus "456" who may have tens of thousands of orders.
So, if we see a spike in the system due to a query, we need visibility into what the exact query syntax and values are for any database session. We're aware of an Oracle view called V$SQL_BIND_CAPTURE, but what we're finding with this view is that it's only a snapshot of variables that are refreshed on an interval. That view does not give us a live view into what values are being used in the various sessions in realtime.
If someone ould provide us with some SQL (or other means) to do get a realtime view into the SQL and variables currently running in the database, it would be greatly appreciated.

In addition to what's been said in the other thread, you could add a layer of logging either in the database or out.
v$sql_bind_capture and the associated ash view dba_hist_sqlbind contain sample data.
You could up the sample rate but it's not advisable - it's still just a sample.
If you're on 11g, this is where adaptive cursor sharing might help.
Not help in finding the values of your binds, but help in using different plans where there is such a skew for different bind values and the plan is perhaps wrong for customer 456.
The problem when you're got such a skew and you're using bind variables is that the two don't really go together.
When the query is next parsed and you've got bind variable peeking enabled, you might get the 123 plan is that is the bind value at parse time and then run into problems for 456 or even vice versa.
See http://jonathanlewis.wordpress.com/2009/05/06/philosophy-1/ for a discussion on binds and histograms which reflects the reasons for using either.

Similar Messages

Bind variable for view accessor

I am using a Gantt chart where I need to pass in a date field for the schedule as a bind variable.
Since this is a Gantt chart, there is no iterator binding for the child VO (the tasks) in my page definition.
    <gantt IterBinding="ParentVO1Iterator" id="ParentsVO1" xmlns="http://xmlns.oracle.com/adfm/dvt">
      <ganttDataMap>
        <nodeDefinition DefName="com.pat.model.view.ParentsVO" type="Resources">
          <AttrNames>
            <Item Value="ParentId" type="resourceId"/>
          </AttrNames>
          <Accessors>
            <Item Value="MainGantt" type="tasks"/>
          </Accessors>
        </nodeDefinition>
        <nodeDefinition type="Tasks" DefName="com.pat.model.view.MainGantt">
          <AttrNames>
            <Item Value="PatId" type="taskId"/>
            <Item Value="StartTimeDate" type="startTime"/>
            <Item Value="EndTimeDate" type="endTime"/>
            <Item Value="Patname" type="label"/>
          </AttrNames>
        </nodeDefinition>
I have tried retrieving the accessor through the parent VO, and setting the bind variable.
But I get an error if I fire executeQuery() on the child VO that says that the bind variable for the view link is missing.
        DCIteratorBinding iter = dcBindings.findIteratorBinding("ParentVO1Iterator"); // get parent iterator binding
        ViewObject vo = iter.getViewObject();
        MainGanttImpl childVO = (MainGanttImpl)vo.findAttributeDef("MainGantt").getAccessorVO(vo); //get the child VO through the accessor link
        childVO.setpViewDate(new Timestamp(((Date)getGanttDate().getValue()).getTime())); // get the date entered by the user and set to the child VO
        childVO.executeQuery(); //execute the child VO
Exposing the child VO impl through the Application module and setting the bind variable to that instance alone has no impact on the Gantt data returned.

We researched a bit more and hit upon the solution here.
Decompiling ADF Binaries: Search by child attributes on a tree table
I added the same bind variable to my parent VO (and added some SQL 'and : pViewDate = : pViewDate' to the query to just get it to work )
In the parent VO Impl class, I overrode the createViewLinkAccessorRS method:
   protected ViewRowSetImpl createViewLinkAccessorRS(AssociationDefImpl assocDef,
                                                      ViewObjectImpl accessorVO,
                                                      Row masterRow,
                                                      Object[] values) {
            ViewRowSetImpl v =
            super.createViewLinkAccessorRS(assocDef, accessorVO, masterRow,
                                           values);
      // Timestamp viewDate = (Timestamp )accessorVO.getNamedWhereClauseParam("pViewDate");
        v.setNamedWhereClauseParam("pViewDate", getpViewDate());
        return v;
public Timestamp getpViewDate() {
        return (Timestamp) getNamedWhereClauseParam("pViewDate");
This sets the child VO with the value of the bind variable that I have set to my parent VO. This got the Gantt working!

How to set a bind variable into a vo query from the current vo ?

I would like to exclude from my list of values defined in a view object the already referenced items in the current view object content.
Let's say i have dept and emp with a many to many relationships, I would like that the already existing dept for emp not listed (excluded) in the list of values for emp.
Do i need to define a bind parameters and set it during search or is it possible to use an expression that will refer the current row attribute representing the dept ?
I didn't find an example or explanation how to set bind parameters defined in a view object query from seach pages or list of values ui components. May be somebody know how to find the info.
Thank you

I think that bind variable accessors in the VO class is what you need. You can override the getter method of the bind variable "LocaleCode2" in order to return the first 2 chars from the bind variable "LocaleCode". Have a look at this blog post for details:
http://jdeveloperandadf.blogspot.com/2011/03/custom-java-bind-variable-in-where.html
Dimitar

Setting bind variable for a view object from the Managed Bean

Hi,
i am using JDeveloper 11g, i have to create LOV in the JSF. To show the LOV, it has to populate data using View object and its query parameter need to be sent from the Managed Bean.
For the View object i want to set the bind variable parameter from the managed bean value. bename is stored in a managed bean (session scope)
#{beantest.bename}
But it gives the following exception.
JBO-29000: Unexpected exception caught:
org.codehaus.groovy.control.MultipleCompilationErrorsException,msg=startup failed, Script1.groovy: 1: expecting '!',found '{'@ line1, column 2.
I have followed the link http://kr.forums.oracle.com/forums/thread.jspa?threadID=615474 like Frank wrote on 8.2.2008:
But steps are not clear.
How to input the VO bind parameter with Managed bean variable?
Any Help
Regards
Raj
Edited by: user9928180 on Dec 17, 2008 9:51 AM

Hi,
a bind variable in a VO needs to be exposed as an executeWithParams operation in the pageDef file. Just add a new action binding to the pageDef file (context menu) and select the executeWithParams operation on teh VO. Then in the argument field, reference the managed bean property for the value
Frank

How to assign sessionscope variable to the bind variable in Query of VO

Hi all,
I want to know how to assign a sessionscope variable in the binvariable of Query in VO
My sessionscope variable holds the value of currently selected column in the table. eg:empname of the currently selected column which is in empdetails table...
I want display the schemes available for the selected employee in the next table..The schemes are in another table named empschemes which has the empname and empschemes as column
I have created a vo for empschemes table with bind variable 'scheme_bind'..I need to set the sessionscope variable '#{sessionScope.empname}" to the bind variable.
Its urgent,..Pls do reply asap
Thanks in advance
Nasrin

HI,
You can use
adf.context.sessionScope.get("YourSessionVariable")this code for assigning VO's bind variable value.write this code where you create bind variable and do not forget click on expression radio button.
Rafat

How to set the bind variable on page load and execute query ?

Hi All,
I am using Jdeveloper 11.1.1.5
I have a table called "Employee"
Columns :- id , name , location
Data :- 1, ,james , chicago
2 ,Raj ,capetown
Now i have another webservice(created as a webservice dataControl) which sends me the "id" on each time my page loads.Now the id which has been returned by webservice should be incorporated in my VO Query as in where clause to fetch the data for the respective "id" in that "Employee" table and should be rendered on form.
Eg :- Id "2" has been sent by the webservice then the record should be fetched from database should be "2","raj","capetown".
I know that there would be necessity of bind variable , but how do i set the bind variable on page load ?
How can i use the bind variable appropriately ??
Please suggest !!!!
Thanks.

Hi,
Check
http://www.orastudy.com/oradoc/selfstu/fusion/web.1111/b31974/web_services.htm#CJADCDBG
http://thepeninsulasedge.com/frank_nimphius/2011/02/18/adf-code-corner-sample-73-released-hands-on-creating-a-search-form-using-a-pojo-ws-and-the-web-service-data-control/
-Suresh

How to substitute a bind variable for a IN condition?

Dynamically I am setting the WHERE condition for one of my blocks using SET_BLOCK_PROPERTY Built in. The condition that I am attaching has two IN conditons..
For Eg.,
contracts_tbl.status_col IN ('NEW', 'OLD', 'EXPIRED', 'OPEN')
AND contracts_tbl.id_col IN (1, 2, 3, 4)
The number of choices in the IN condition will vary depending upon the user choice in my screen. Because of this the parsed SQL state is could not be shared and multiple of these are getting created in shared pool. To avoid this I would like to use bind variables.
There are two ways I am trying to do this..
1. Generating one bind variable for each value. i.e.,
contracts_tbl.status_cod IN (:global.var1, :global.var2,
:global.var3)
Now this could result it memory error if no. of choices exceeds the avilable memory. Also its a tedious task to purge the variables after querying the block. Also because of multiple IN conditions, the chances of different set of selections are possible and then again sharing will be minimal.
2. The second method is to set the one bind variable for each IN condition. i.e.,
:GLOBAL.Var1 := '( 'NEW', 'OLD', 'EXPIRED', 'OPEN' )';
:GLOBAL.Var2 := '(1, 2, 3)';
contracts_tbl.status_col IN :GLOBAL.Var1
AND contracts_tbl.id_col IN :GLOBAL.Var2
In this case, forms is not querying as the IN condition takes the global variable value as one string and the query returns no rows though there are plenty available for each status. Also any NUMBER type condtions erroring out as the , and ( are invalid numerals.
Q: Is there anyway you can make this work? or Is there any other better method to substitute bind variables in place to avoid creating new set of statements for each query in the shared pool?
Your suggestions and pointers are higly appreciated. Please respond immediately as this is a P1.
Thanks,
-- Raam.

2. The second method is to set the one bind variable for each >>IN condition. i.e.,
:GLOBAL.Var1 := '( 'NEW', 'OLD', 'EXPIRED', 'OPEN' )';
:GLOBAL.Var2 := '(1, 2, 3)';
contracts_tbl.status_col IN :GLOBAL.Var1
AND contracts_tbl.id_col IN :GLOBAL.Var2 This method should work - not sure if you put exact syntax in or not but your first assignment would cause a problem as everywhere you want one ' mark you would have to put two so that it does not close your quoted string
Try the following syntax:
:GLOBAL.Var1 := '( ''NEW'', ''OLD'', ''EXPIRED'', ''OPEN'' )';
:GLOBAL.Var2 := '(1, 2, 3)';
SET_BLOCK_PROPERTY('blk name',
default_where,
'contracts_tbl.status_col IN ' || :GLOBAL.Var1
|| ' AND contracts_tbl.id_col IN ' ||
:GLOBAL.Var2);
Hope this helps,
Candace Stover
Forms Product Management

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]

How to pass pageFlowScope variable value as bind variable for VO

Hi,
I have one fixed lov (not based on datasource), if i select any value in that lov i want to pass this value to a pageFlowScope variable.
After this i want to use this value as bind variable for VO. whenever the vo executes thereafter this bind variable should filter that vo results.
My jdev version: 11.1.0.0
Thanks in advance,
SAN

san-717,
can you elaborate on the use case instead of the implementation you don't get done? I understand you have data displayed in a tree: so lets assume the tree structure is Locations, Departments and Employees according to the Oracle HR sample schema.
1. What is the LOV supposed to do ?
2. Where is the LOV located ?
3. What values does the LOV show ?
4. Is the LOV a select choice component or a real LOV (with search dialog)
5. Where is the bind variable used ?
To me it sounds like you want to filter the tree data based on the select choice value. However, you wont do this by passing the bind parameter to all View Objects involved as they may not have the attribute in their query. So your use case is important to answer the question
Frank

How to set bind variable for a VO ,

Hi,
i got a requirement in which i have to set bind variable for VO , But the Bind variable is coming from payload attribute,
For example my query in VO is select * from Employee where emp_id="payload attribute"
How to set this attribute value is from the payload
Thanks Regard
Rajendar

Hi i am getting this exception " Cannot create an object of type:java.lang.Number from type:oracle.bpel.services.datacontrol.data.DataObject with value:21159"
Actually i am getting Decimal Value from Payload of BPEl process and i am trying to set this to The bind variable
is that a type cast exception where can i typeCast Those values You should this in a new thread.Dont ask questions out of the scope of this thread.
Please mark this thread as answered or helpful if you got solution for this thread.
Thanks!!!

How to set bind variables for child VO in hierarchy component?

Hi,
Recently I created a application with Hierarchy Component with Parent VO (Query based VO with Bind variables in it) and its Child VO along with Child-Child VO(Query based VO with bind variable in it)
I am able to set bind variable of parent VO but unable to set bind variable for Child-Child VO. Can any one help me regarding this issue?

Hi i am getting this exception " Cannot create an object of type:java.lang.Number from type:oracle.bpel.services.datacontrol.data.DataObject with value:21159"
Actually i am getting Decimal Value from Payload of BPEl process and i am trying to set this to The bind variable
is that a type cast exception where can i typeCast Those values You should this in a new thread.Dont ask questions out of the scope of this thread.
Please mark this thread as answered or helpful if you got solution for this thread.
Thanks!!!

Is it possible to set bind variable for picklist?? for messageChoice

we are trying to develop one new page in local JDeveloper.
we have requirement for passing a bind variable to a picklist. is it possible?
Item Type : messageChoice
Query:
SELECT DISTINCT TO_CHAR (effective_date, 'YYYY') TYPE
FROM pay_assignment_actions a, pay_payroll_actions b
WHERE a.payroll_action_id = b.payroll_action_id
AND assignment_id =
(SELECT assignment_id
FROM per_assignments_x
WHERE person_id = :person_id AND primary_flag = 'Y'
AND assignment_type = 'E')
AND a.action_status = 'C'
AND b.payroll_action_id IN (SELECT payroll_action_id
FROM pay_payroll_actions_v
WHERE action_type IN ('P'))
AND b.payroll_action_id IN (SELECT payroll_action_id
FROM xxilo_pre_payments)
ORDER BY 1 DESC
processRequest() code:
PayslipAMImpl am=(PayslipAMImpl)pageContext.getApplicationModule(webBean);
YearPicklistVOImpl yvo=(YearPicklistVOImpl)am.getYearPicklistVO1();
Number t = new Number(pageContext.getEmployeeId());
yvo.setWhereClauseParams(null);
yvo.setWhereClauseParam(0,t);
for this query & code we are getting
ERROR:
java.sql.SQLException: Missing IN or OUT parameter at index:: 1
if we hardcoded person_id in query to some value then we are getting results without any error.

user603084 ,
In the query you have specifies bind variable as :person_id , but in your VO execution code you are setting value for bind variable :1
yvo.setWhereClauseParam(0,t);
You need to change the bind variable in query , like :1
and then execute the query of VO, as you have done. Also do executeQuery, after setting bind variables.
--Mukul

How to pass the bind variable value to the sql statement of the LOV

Hi,
I am using Forms 10g builder.
I have a text item which will be populated by a LOV when i press a button, but i have a bind variable in the SQL statement of the LOV. That bind variable should be replaced by a value which is derived from a radio group in the same data block.
For Ex: ( )radio1 ( )radio2
before i click on the push button, I'll select one of the radio button above,so my question is how to assign this radio group value to the bind variable in the sql statement in the LOV?
Pl any hint is appreciated!
Thanks
Reddy

The variable can be taken into account in the SELECT order contained in the Record Group used by the LOV.
e.g. Select ... From ... Where column = :block.radio_group ...Francois

Daresbury purchase price will be variable for a given material from one sal

HI
This is the Issue came from my client
Daresbury purchase price will be variable for a given material from one sales order to another. System currently allows manual enter prices on purchase req in relation to selling price. Price in Pur Info Req has price of 0.01, Purchase order takes price of

I probably have at least over 2000 songs in my iTunes, plus a couple of videos. Though since I can always still use my desktop for anything else, maybe it is better I take the 256 over the 128. I had read a lot of other topics on this with a lot of people saying it is better to go with the 8GB memory and I would buy that also if I could, but I can't and of course I want this laptop to last me a while.
Thanks for your help I think I'll go for the 256 + 4 instead, and I presume I can always get other external drives to store anything if I really need to down the road.

Setting bind variables for VO in JUnit test case

Hi,
I am using Jdeveloper 11.1.2.2
I have a problem while writing the test case for VO in JUnit.
For the Remove method in the Test case , I have passed variables into the VO by using a setWhereClause() .
Like this :
        view.setWhereClause(null);
        String whereClause = "location_id = '" + newUpdatedLocationId + "' AND organization_id = '" +newOrganizationId + "'" ;
        view.setWhereClause(whereClause);
        view.executeQuery();
        while (view.hasNext()) {
            view.next();
            view.removeCurrentRow();
        fixture1.getApplicationModule().getTransaction().commit();But it is showing a an error like the bind variables are not set.
So how will I access Bind variables programmatically and set the values ?
Thanks
Nigel.

setNamedWhereClauseParam() is used for setting bind variables

Extract the "bind" variables for a given query running in 10g.

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