Select List field in Form not pulling correct record

I have a report that displays a Product Name and a Host Name. Each product can reside on multiple hosts and each host has multiple products, hence an associative table with product_host_asgmt_id, product_id and host_id is defined.
The report I created selects data from the associative table and presents the user the product names and host names without a problem. the same report has an edit link that when selected will open a form that should display the selected host name and product name. In the form both of these fields are defined as Select List. The issue is that the list shows all the LOV but does not focus on the one that was selected in the report to edit.
I unhid the product_host_asgmt_id, product_id and host_id in the form and the values contained are correct, so I think the Automated Row Fetch is working. This same form needs to be used for editing and for creating new values hence the Select List.
I I have the Source section of the Host_name select list field set to : Only when current session state is null and the Source Type is an SQL query selecting all host_name form the host table.
Any ideas how to get the values selected in the report to appear in the form?
Thanks and apologize if this is trivial. I'm a rookie Apex user (but I like it).

When you link to the form page, I assume you are passing the host_id value into a page item. Say you pass this value into item P2_HOST_ID, just make the select list item's Source Type Item (application or page item name) and enter P2_HOST_ID in the Source field.
This assumes that the lov query is of the form "select host_name d, host_id r from ...".
Be careful with Source Used "Only, ..." so that you never allow the page to display with a stale and unwanted value in P2_HOST_ID or that will produce an incorrect display value in the select list.
Scott
P.S. Please tell us your first name and put it into your handle and/or profile to help us.

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Hi,
I created a tabular form with two select lists (Queries are same for both the select list and results around 300 records in the SQL).
I am getting the following error:
report error:
ORA-20001: Error fetching column value: ORA-06502: PL/SQL: numeric or value error: character string buffer too small
If I changed Select list to POP list, I am not getting error.
Please suggest how to user select list in this case.
Regards,
Meda

LnTInfotech wrote:
I created a tabular form with two select lists (Queries are same for both the select list and results around 300 records in the SQL).
I am getting the following error:
report error:
ORA-20001: Error fetching column value: ORA-06502: PL/SQL: numeric or value error: character string buffer too small
If I changed Select list to POP list, I am not getting error.
Please suggest how to user select list in this case.It is not possible. There is a 32K limit on the HTML generated for select list items. (As a type of report, tabular forms are also subject to the 32K limit on the size of a report row.)
In terms of usability 200 options is about the maximum size I would consider sensible for a select list ( and for select lists in tabular forms, much, much fewer!)
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Hello All,
Once more thank you. I have sorted the issue out.
I observed that I was selecting the wrong field. I selected the field matching the record set of the select instead of the field matching the record set of the table I am working as seen on the image belew
I was selecting this - This is the record set of the table that hold values for the city select list
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My issue is now re-solved.
Mike

Two select lists in tabular form

I have two Select Lists which one of them depends on the another -the second one's query depends on the first one's - .....
This operation can be done in a form or a page, but how it could be done in a tabular form???
Saad

The simple answer is that to the best of my knowledge, it cannot be done because of how the tabular form works. If I understand it correctly, Tabular forms are populated completely at page load and cannot post back from items inside the form in order to refresh a list of values on the second select list. If you want to do this, you will need to build the form as a "Form and Report" page type where you have links in your report that populate a regular page form. Just tell it to put the form and the report on the same page them add a hidden page item that you set to 1 or 0 to display the form and setup the form processing so it is button tied instead of unconditional (You may have to duplicate auto processing processes).
The complex answer....there probably is a way to do this using AJAX as AJAX is good at this kind of stuff and every field in the tabular form has an HTML id of some kind....but I am not well versed enough in AJAX to give you a straight answer as to how to accomplish it. I used AJAX to do something similar to what your talking about but it was with regular page items (using a select list to populate a shuttle without a post back) and not items in a tabular form.

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Try deleing the Safari Cache.db
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Hi,
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Implementing multi-select lists in Oracle Forms

Can anyone of you please tell me how to do multi select list in forms. I used picklist.fmb from oracle demo forms but it is not working fine. If someone could provide a working form I will be grateful to them.
My mail id is [email protected]

Some years ago I wrote (using Forms6i) utility MSLOV for such purposes, and even wrote an article about using it, but, of course, in Russian :-)
I successfully use it in my Web Forms6i project and also test it in C-S Forms6i and Forms9i.
If someone interesting, I also have short english usage description.
It will be nice to hear your comments.
At first, you need a code, which can be downloaded from http://www.geocities.com/luzanovp/mslov.html
At the end of article there is a link to mslov.zip. Get it.
Compile MSLOV.fmb and MSLOV.pll
Run demo forms: EMP_DEMO.fmb, ORD_DEMO.fmb and see how it works.
It requires Scott's tables: emp, dept, ord, item, product. You can create these tables from demobld.sql
Below description about how to use it.
You can show to user only one column, actually it can be expression (so, you
are not limited here to one database column only ).
Specify this column/expression by label_in parameter to fp_mslov.show_lov
For example, if EMP table contains first_name and last_name columns and
you want to show to the user full name do this:
IF fp_mslov.show_lov (
   label_in => 'first_name || '' '' || last_name',
Parameter id_in - this is what will be returned to you as a developer after user
made his choice.
For example, you want to receive array of EMPNO:
IF fp_mslov.show_lov (
   label_in => 'first_name || '' '' || last_name',
   id_in => 'empno'
In some cases you need to return more that one column.
You can specify up to five additional columns for such purposes.
For example, you want to return not only EMPNO, but also SAL and COMM columns:
IF fp_mslov.show_lov (
   label_in => 'first_name || '' '' || last_name',
   id_in => 'empno',
   col1_in => 'sal',
   col2_in => 'comm'
Also, you can use expressions in place of these columns:
   col3_in => 'sal + NVL(comm, 0)'
From which table we must query?
How to order by or specify some conditions(Where clause)?
Where the place for GROUP BY?
For all these questions you must use from_clause_in parameter.
In our example we will query emp table and want order by salary in descending
order:
IF fp_mslov.show_lov (
   from_clause_in => 'FROM emp ORDER BY sal DESC',
Parameter title_in to fp_mslov.show_lov is a self documented.
This is a title for MSLOV dialog.
So, to invoke mslov utility, we construct such call:
IF fp_mslov.show_lov (
   label_in => 'first_name || '' '' || last_name',
   id_in => 'empno',
   col1_in => 'sal',
   col2_in => 'comm'
   col3_in => 'sal + NVL(comm, 0)',
   from_clause_in => 'FROM emp ORDER BY sal DESC',
   title_in => 'Select employees'
THEN
This function fp_mslov.show_lov will return TRUE if user made selection and
FALSE if user press CANCEL (similar to SHOW_LOV builtin).
Now, if it return TRUE we need to process returned rows (selected by user).
I store it in global record group.
But to work with this record group, you can use fp_mslov package, which
provide desired API for this purpose.
At first, you need to declare a variable of FP_MSLOV.OUT_RECORD_TYPE type.
Actually this is a record type declared in fp_mslov package specification.
DECLARE
   returned_rec FP_MSLOV.OUT_RECORD_TYPE;
To process selected rows we need a loop from 1 to a number of selected rows.
Such number can be received by fp_mslov.rowcount function:
FOR i IN 1 .. fp_mslov.rowcount
LOOP
END LOOP;
To return one row we can use fp_mslov.get_row function.
FOR i IN 1 .. fp_mslov.rowcount
LOOP
   returned_rec := fp_mslov.get_row(i);
END LOOP;
Now, you can do what you want with returned row.
RETURNED_REC record has the following fields which correspond to parameters of
the
fp_mslov.show_lov function: id, col1, col2, col3, col4, col5
You know that in id field will be empno column, in col1 -> sal, etc
So, you can process them:
FOR i IN 1 .. fp_mslov.rowcount
LOOP
   returned_rec := fp_mslov.get_row(i);
   message('Empno: ' || returned_rec.id);
   message('Sal: ' || returned_rec.col1);
   message('Comm: ' || returned_rec.col2);
   message('Sal+Comm: ' || returned_rec.col3);
END LOOP;
Remember that returned values always are varchar2 values.
So if you need, for example, a date you need explicitly convert it to char when
invoking
fp_mslov.show_lov and then (after fp_mslov.get_row) convert it to date with the
same format mask.
For example:
   IF fp_mslov.show_lov (
      col4_in => 'TO_CHAR(hiredate, ''DD.MM.YYYY HH24:MI:SS'')',
   ... TO_DATE(returned_rec.col4, 'DD.MM.YYYY HH24:MI:SS');
To clear memory structures which used by global record group and others
variables,
you need to use fp_mslov.clear procedure.
And now all together:
DECLARE
   returned_rec FP_MSLOV.OUT_RECORD_TYPE;
BEGIN
   IF fp_mslov.show_lov (
      label_in => 'first_name || '' '' || last_name',
      id_in => 'empno',
      col1_in => 'sal',
      col2_in => 'comm'
      col3_in => 'sal + NVL(comm, 0)',
      from_clause_in => 'FROM emp ORDER BY sal DESC',
      title_in => 'Select employees'
   THEN
      FOR i IN 1 .. fp_mslov.rowcount
      LOOP
         returned_rec := fp_mslov.get_row(i);
         message('Empno: ' || returned_rec.id);
         message('Sal: ' || returned_rec.col1);
         message('Comm: ' || returned_rec.col2);
         message('Sal+Comm: ' || returned_rec.col3);
      END LOOP;
   ELSE
      NULL; -- User press Cancel
   END IF;
   fp_mslov.clear;
END;

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I'm sure someone must have come across this problem but I can't find a reference to it on the forum.
PROBLEM
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20:30:50
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http://htmldb.oracle.com/pls/otn/f?p=31517:75
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>
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Select List field in Form not pulling correct record

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