Query based LOV in an updateable report

Hi,
I have an updateable report which has a select box where the user can select "Item"
I have another select box in the same report that needs to "update" its values according to the selected item. Is this possible?
My first thought was to let the second select box be an empty div tag, and then use javascript to build the select. The problem with that is that if I just print a div tag in my select for the report (select '<div></div> from...') then it will not show untill the line has been saved so that is out of the question.. Any suggestions is welcome :)
Thanks
Bjarke

Hi Bjarke,
Yes it is possible providing the two are linked in some way. I'll explain with the idea that your first LOV is :P1_ITEM and the second is :P1_DETAILS
*:P1_ITEM query:*
SELECT DISTINCT ITEM FROM TABLE*:P1_DETAILS query:*
SELECT DISTINCT DETAILS FROM TABLE WHERE ITEM = :P1_ITEMYou want an unconditional branch which returns to the current page. Make sure that the "reset pagination" option in this branch is not ticked (i.e. you do not want it to reset as the values will go back to default).
Your report might then be something like:
SELECT * FROM TABLE WHERE ITEM = :P1_ITEM AND DETAILS = :P1_DETAILSHope this helps.
Mike

Similar Messages

Select List (query based LOV) in a wizard created report form

I have created an updatable report form with 3 columns:
app_id
user_id
group_id
Each app_id has multiple group_id's associated with it, and I want to show the group_id field as a Select List (query based LOV) that contains the groups associated with the app_id.
My query for the select list needs to be similar to the following:
SELECT DISPLAY_NAME, GROUP_ID
FROM APPLICATION_GROUPS
WHERE APP_ID = ?????
ORDER BY 1
The problem is, I don't know how to reference the app_id from the main report to replace the ?????.
In other words, if my report returns 2 rows of data like this:
app_id----------user_id----------group_id
1-----------------24------------------3
2-----------------24------------------15
Then how do I get the group_id column to be a select list of possible groups for each application? If app_id 1 has 3 groups associated with it, 3, 4, & 5 and app_id 2 has 2 groups associated with it, 15 & 16, then those each of the select lists should be based on the app_id.
Hopefully I explained this clearly.
Thanks,
Kris

Leo,
Thanks for the response, but I don't think you quite understand my problem. If I go to the Column Attributes screen for the group_id field, I have the "Display As" drop down set to "Select List (query based LOV)", not "Select List (named LOV)". This requires that the sql query be written in the "List of values definition" text area below. Within that text area I have the following query:
SELECT DISPLAY_NAME, GROUP_ID
FROM APPLICATION_GROUPS
WHERE APP_ID = ?????
ORDER BY 1
The APP_ID that I need to reference is for the current row of data that is being processed. Therefore, I can't use a :PNNN_APP_ID variable, because that field does not exist on the page.
Hopefully this explains it a little better.
Thanks,
Kris

Character string buffer too small (select list query based LOV)

Hi,
Using the select list query based LOV with a select witch is too big, you get this error.
report error:
ORA-20001: Error fetching column value: ORA-06502: PL/SQL: numeric or value error: character string buffer too small
When using the Popup LOV query based LOV) then it works nice.
Can that be solved somehow?
With the Popup LOV the return value is displayed in stead of the description.

Hi Andy,
How do I incorporate your suggestion on a report ?
Example : I have
select apex_item.display_and_save(1,column1,5) col1,
apex_item.display_and_save(2,column2,5) col2 ,
apex_item.popup_from_query(3, emp_name, 'select user_name, name empname from table2) col3
Table 2 is a long list , and I'm getting string buffer too small due to this.
Your suggestion with HTP is good but I'm not sure how to implement it for reports as I'll like the user to change the values with the select_list.
I'm not using forms as they want mulit-record on the same page.
Hope to hear back from you soon.
Thanks very much.

Problem with query based LOV

Hi,
Maybe someone could help me with the following. I think it is a shortcoming of HTMLDB, but I'm not sure.
I've got a Select List item, P10_PERSON, which resides in a tabular form. The Select List is based on a query, say:
select name   display_value
,      id     return_value
from   personAs is should be, P10_PERSON shows only the names.
When my action is an insert or modification, the results will be writen in the table PERSON_MEETING.
Now I want to make sure that the same person coulden't be selected a second time for the same meeting. So I alter the query based LOV with the following:
select name   display_value
,      id     return_value
from   person
where id not in (select person_id
                  from   person_meeting
                  where meeting_id = :P10_MEETING_ID)This sounds correct and works in Designer, but not in HTMLDB. The NAME isen't shown anymore, instead the ID is shown in the page.
Is this because the person doesen't actually exists anymore in the LOV after it has been saved (stored in PERSON_MEETING)? If so, does anyone knows a work-around?
Thx!
Message was edited by:
F. Klein
(removed typing error)

I've got 3 tables. PERSON, MEETING and PERSON_MEETING.
They have the following structure:
# PERSON            #
# ID   NUMBER       #
# NAME VARCHAR2(50) #
# MEETING                   #
# ID          NUMBER        #
# DESCRIPTION VARCHAR2(100) #
# PERSON_MEETING    #
# ID         NUMBER #
# PERSON_ID NUMBER #
# MEETING_ID NUMBER #
#####################In PERSON there are 3 records, in MEETING there is only 1.
PERSON:
ID     NAME
1      KEVIN
2      BILL
3      JOHN
MEETING
ID     DESCRIPTION
1      DEVELOPERS MEETINGNow I want to link the persons to a meeting in the PERSON_MEETING table.
The column MEETING_ID will be filled automatically through a variable or parameter (I don't know the exact term).
I defined the PERSON_ID column as an query based select list with the query:
select name   display_value
,      id     return_value
from   personThis works perfectely, the select list (or lov) shows KEVIN, BILL and JOHN. When I select BILL and save my adjustment, the following record will be shown in PERSON_MEETING
PERSON_MEETING
ID     PERSON_ID     MEETING_ID
1      2             1Now that I inserted BILL as a participant for the Developers meeting he should be removed from the select list. Only KEVIN and JOHN should be in the list. Therefore I change the query of the select list into:
select name   display_value
,      id     return_value
from   person
where id not in (select person_id
                  from   person_meeting
                  where meeting_id = :MEETING_ID):MEETING_ID is the item in the page containing the ID of the meeting.
When I make this adjustment, the select list only contains KEVIN and JOHN (as it should), but the first record shown on the page (record with BILL) doesen't show BILL anymore, instead his ID will be shown (2)...

Select query based LOV for tabular form attributes

Hi HTMLDB Team,
Congrats u all for the new release of HTMLDB in htmldb.oracle.com.
I badly need a solution of the below problem.
Say , i have table called user_col_comments now i want to display the table_name ,column_name and comments in a tabular form.I displayed only one row for the tabular form.Now i create a select query based LOV for attribute table_name where i got all table_name in drop down list.
Point is that after selecting any data from drop down table list i want to get the corresponding fields to be populated in column_name attributes.How can i wrote the select query based LOV for the attibute column_name.
I wrote it as 'select column_name d,column_name r from user_col_comments where table_name=:TABLE_NAME Its not working?
Similarly i want same thing to display for comments after matching both table_name and column_name.
Any solution to get rid of those problem will be highly appreciable...
If u need my htmldb.oracle.com userid and password to solve the problem i will sure let u email it.
Cheers,
Eman

hi rchalton,
can u plz little bit more clearer .I know hopefully u can imagine the problem and may u guide me thru proper way.....One think i understand that there must be multiple process and submit but "only when..." that u have said i cant understand that part........
U are welcome to give me proper solution.....
Thanks for the reply ....atleast one can pay hid to me.....
Cheers,
Eman

Tabular form (select list Query based LOV)

Hi all,
I have this situation:
a tabular form with two "select list (query based LOV)" fields.
The first one must affect elements in the second one. And so the second query based LOV field should has a "where attr1 = first_list_selected_value" in the query.
Is this possible ? Could you show me some advices ?
thanks in advance.

OK, thank you.
But maybe I wasn't too clear.
I need cascading LOV for each row of my tabular form.
I have a EMP tabular form
select
"ROWID",
"EMPNO",
"ENAME",
"JOB",
"MGR",
"HIREDATE",
"SAL",
"COMM",
"DEPTNO"
from "#OWNER#"."EMP" I need a Select List for DEPTNO for each record of table. After set a value, the second "Select List" for ENAME should be affected automatically.

Select List (query based LOV) in V. 4.1.1.00.23

Hi guys,
I am having some problems with an APEX application that I have exported from V. 4.1.0.00.32 and imported on V. 4.1.1.00.23.
I have a Tabular Form region where I have a column which is Display As "Select List (Query based LOV)".
If I add a new row - choose a new value (not the same as any of the above rows) and "Apply Changes"/"Submit" the value in the new row changes to the value of the 1. row of the tabular form :-( I can update this new row and then it saves the right value... It looks like it is only when inserting a new row.
Is this a bug or is it a feature ;-)
Hope you can help...
/Rene

Leo,
Thanks for the response, but I don't think you quite understand my problem. If I go to the Column Attributes screen for the group_id field, I have the "Display As" drop down set to "Select List (query based LOV)", not "Select List (named LOV)". This requires that the sql query be written in the "List of values definition" text area below. Within that text area I have the following query:
SELECT DISPLAY_NAME, GROUP_ID
FROM APPLICATION_GROUPS
WHERE APP_ID = ?????
ORDER BY 1
The APP_ID that I need to reference is for the current row of data that is being processed. Therefore, I can't use a :PNNN_APP_ID variable, because that field does not exist on the page.
Hopefully this explains it a little better.
Thanks,
Kris

Manual tabular form and query based LOV

Happy new year everyone!
Okay so, I've run into an error when making one of the fields in a tabular form into a select list.
report error:
ORA-20001: Error fetching column value: ORA-06502: PL/SQL: numeric or value error: character string buffer too small
The query works fine in SQL Workshop and Toad, it returns over 100 rows.
I have tried to use a Popup LOV, which works but I'd like to know what is going wrong with the select list.
We're using version 3.0.1.00.07 of apex, for what it's worth.
Help appreciated!
Kieran
Message was edited by:
Kieran

Keiran,
In the select list there is a display value and a return value.
The return value is the Foreign Key and the Display value is what is displayed in the LOV.
Are you getting these the wrong way round ?
I usually put the return value first and alias is with r and put the display value second and alias the display value with d.
Hope this helps
Regards
Chris

Need customized query on updateable report (tabular form)

I have a pl/sql function that returns a SELECT statement based on very flexible query specifications allowed in a form. (Form has a field for each table column, allows operations like <,>,between, etc, that can be entered directly into the field; all fields need not have some sort of query constraint specified. Essentially the same sort of query flexibility you get in Forms... ) The select always returns the same number of columns. Query results are returned on a different page (either report or tabular form) than that used to enter the query specs.
The function works beautifully on a page type of Report.
However, when I take a Tabular Form and switch its query source to PL/SQL function body returns SQL select, the page type becomes Report. The query works on this modified page (returns correct rows), and the columns are still editable (can be typed into) but the changes can't be submitted because the page is no longer a tabular form -- Error is: No updateable report found. Multi row updated and delete operations can only be performed on tabular forms of type 'Updateable Report'.
How can I have flexible query specs paired w/ an updateable report? Does this require writing my own multi-row DML processes? Or is there a simpler way?
Thanks,
Carol

I have a pl/sql function that returns a SELECT statement based on very flexible query specifications allowed in a form. (Form has a field for each table column, allows operations like <,>,between, etc, that can be entered directly into the field; all fields need not have some sort of query constraint specified. Essentially the same sort of query flexibility you get in Forms... ) The select always returns the same number of columns. Query results are returned on a different page (either report or tabular form) than that used to enter the query specs.
The function works beautifully on a page type of Report.
However, when I take a Tabular Form and switch its query source to PL/SQL function body returns SQL select, the page type becomes Report. The query works on this modified page (returns correct rows), and the columns are still editable (can be typed into) but the changes can't be submitted because the page is no longer a tabular form -- Error is: No updateable report found. Multi row updated and delete operations can only be performed on tabular forms of type 'Updateable Report'.
How can I have flexible query specs paired w/ an updateable report? Does this require writing my own multi-row DML processes? Or is there a simpler way?
Thanks,
Carol

OnChanger="get_ajax_select_xml(this);" with select list (query named LOV)

Hello,
i used Vikas'example Re: cascading lov for tabular form
i have a problem with Select list (query based LOV)
when run tabular form i have the following error:
report error:
ORA-06502: PL/SQL: numeric or value error: character string buffer too small
the number of rows of the Lov are 900
the display variable is 70 char
is there any limit?
Thank in advance
Costanti

Leo,
Thanks for the response, but I don't think you quite understand my problem. If I go to the Column Attributes screen for the group_id field, I have the "Display As" drop down set to "Select List (query based LOV)", not "Select List (named LOV)". This requires that the sql query be written in the "List of values definition" text area below. Within that text area I have the following query:
SELECT DISPLAY_NAME, GROUP_ID
FROM APPLICATION_GROUPS
WHERE APP_ID = ?????
ORDER BY 1
The APP_ID that I need to reference is for the current row of data that is being processed. Therefore, I can't use a :PNNN_APP_ID variable, because that field does not exist on the page.
Hopefully this explains it a little better.
Thanks,
Kris

Only 2 choices for popup lov in an updatable report ?????

Help please !!!!!!!
Another question regarding an popup lov item in an updatable report
The is only 2 choices for popup lov :
popup lov(named lov)
popup lov(query based lov)
and if I want to display a descrition and return a key ?????
Thnaks for help!

jina--
please try to not bump your posts up after only a few hours. i'm sure you understand that, but i thought i'd say it just in case. about your issue, you can create your own tabular form and use htmldb_item.popupkey_from_query or htmldb_item.popupkey_from_lov to achieve your desired effect. there's a great howto doc on manually creating tabular forms at..
http://www.oracle.com/technology/products/database/htmldb/howtos/tabular_form.html
and know that i've logged your request to have this feature available declaratively.
hope this helps,
raj

SQL Query (updateable report) Region - Conditionally Hide and Set Values

SQL Query (updateable report) Region - Conditionally Hide and Set Values
Outline of requirement :-
Master / Detail page with Detail updated on same page using SQL Query (updateable report).
The detail region has the following source
SELECT item_id,
       contract_id,
       CASE WHEN hardware_id IS NOT NULL THEN
               'HA'
            WHEN backup_dev_id IS NOT NULL THEN
               'BD'
            WHEN hardware_os_id IS NOT NULL THEN
               'HS'
       END item_type,
       hardware_id,
       backup_dev_id,
       hardware_os_id
FROM   "#OWNER#".support_items
WHERE contract_id = :P26_CONTRACT_IDThe table support_items implements arced relationships and has the following columns
CREATE TABLE SUPPORT_ITEMS
ITEM_ID         NUMBER                        NOT NULL,
CONTRACT_ID     NUMBER                        NOT NULL,
HARDWARE_ID     NUMBER,
BACKUP_DEV_ID   NUMBER,
HARDWARE_OS_ID NUMBER
)A check type constaint on support_items ensures that only one of the fk's is present.
      (    hardware_id    IS NOT NULL
       AND backup_dev_id IS NULL
       AND hardware_os_id IS NULL
OR    (    hardware_id    IS NULL
       AND backup_dev_id IS NOT NULL
       AND hardware_os_id IS NULL
OR    (    hardware_id    IS NULL
       AND backup_dev_id IS NULL
       AND hardware_os_id IS NOT NULL
      )    Hardware_Id is a FK to Hardware_Assets
Backup_dev_id is a FK to Backup_Devices
Hardware_os_id is a FK to Hardware_op_systems
The Tabular Form Element based on item_type column of SQL query is Displayed As Select List (based on LOV) referencing a named list of values which have the following properties
Display Value     Return Value
Hardware Asset    HA
Backup Device     BD
Computer System   HSThe Tabular Form Elements for the report attributes for hardware_id, backup_dev_id and hardware_os_id are all Displayed As Select List (Based on LOV).
What I want to do is only display the Select List for the FK depending on the value of the Select List on Item Type, e.g.
Item_Type is 'HA' then display Select List for hardware_id, do not display and set to NULL the Select Lists for backup_dev_id and hardware_os_id.
Item_Type is 'BB' then display Select List for backup_dev_id, do not display and set to NULL the Select Lists for hardware_id and hardware_os_id.
Item_Type is 'HS' then display Select List for hardware_os_id, do not display and set to NULL the Select Lists backup_dev_id and hardware_id.
There are properties on elements to conditionally display it but how do we reference the values of the SQL query Updateable region? they are not given a page item name?
Also on the Tabular For Elements there is an Edit tick against a report item - however when you go to the Column Attributes there is not a property with which you can control the Edit setting.
What's the best way of implementing this requirement in APEX 3.1?
Thanks.

>
Welcome to the forum: please read the FAQ and forum sticky threads (if you haven't done so already), and update your profile with a real handle instead of "user13515136".
When you have a problem you'll get a faster, more effective response by including as much relevant information as possible upfront. This should include:
<li>Full APEX version
<li>Full DB/version/edition/host OS
<li>Web server architecture (EPG, OHS or APEX listener/host OS)
<li>Browser(s) and version(s) used
<li>Theme
<li>Template(s)
<li>Region/item type(s) (making particular distinction as to whether a "report" is a standard report, an interactive report, or in fact an "updateable report" (i.e. a tabular form)
With APEX we're also fortunate to have a great resource in apex.oracle.com where we can reproduce and share problems. Reproducing things there is the best way to troubleshoot most issues, especially those relating to layout and visual formatting. If you expect a detailed answer then it's appropriate for you to take on a significant part of the effort by getting as far as possible with an example of the problem on apex.oracle.com before asking for assistance with specific issues, which we can then see at first hand.
I have a multi-row region that displays values and allows entries in a number of fields.Provide exact details of how this has been implemented. (An example on apex.oracle.com is always a good way to do this.)
I should like the fields to be conditional in that they do not permit entry, but still display, if certain conditions apply (e.g. older rows greyed out). Can this be done? Almost anything can be done, often in multiple ways. Which are appropriate may be dependent on a particular implementation, the skills available to implement it, and the effort you're willing to expend on it. Hence it's necessary to provide full details of what you've done so far...

Where clause in sql query for updateable report

Why is the following not working as source for an updateable report ?
select customer_name from temp_customers
where customer_type = :my_field;
How can I make a filter for an updateable report that is based on a field on my page ?
Greetings Bernd

Howard,
The htmldb_item API package allows you to display column values in a report as HTML form fields. You have a choice of different types of form fields. In your example for instance you get a select list by using the function select_list_from_lov. But by simply placing form fields in an HTML page, you don't specify that those fields are actually supposed to update data in a database. You need an after submit process that is actually performing the update.
You can implement this type of process manually using your own PL/SQL code. Or you can have HTML DB do this for you. If for example you were using the tabular form wizard, you would get an updateable report, including the update process and even including checksum functionality to make sure that you don't overwrite another person's changes (lost update detection).
If you use the wizard, the report form items use the build-in display types. This means you don't have to do your own calls to htmldb_item as part of your query. It is generally advisable to use the build-in types as they are easier to work with and are only rendered for the rows actually shown as opposed to be rendered for the entire result set.
If you do choose to use htmldb_item, you'll have to code your own PL/SQL code to perform the updates and you should also include some logic for lost update detection. The HTML DB documentation provides information on how to manually process data from tabular forms.
Hope this clarifies your question about updateable reports,
Regards,
Marc

LOV with where clause containing a value from a row in an updateable report

I have an updateable report in which a possible value of one column depends on the value of another. I want to use LOVs (there are two different possible), and per row choose which LOV I use, does anyone know if this is possible?
Thanks
Wendy

Wendy - I see that you were able to use the correlated subquery technique (in your other post). This sounds like a slightly different problem but if your query uses the htmldb_item API, I think you could achieve your aim using this same method and decode.
Scott

Type: SQL Query (updateable report)

Hello,
Is it possible to default a field value in a SQL Query (updateable report) Report Region in a DML Form when the 'Add Row' button is clicked? I want to default some List of Value fields. This is not as simple as a HTML Region Item based on a table, there is a 'Default' tab where the field value goes. Any help is appreciated, thanks.

Hi,
On the tabular form's Column Attributes tab, select the column. You should see a section headed "Tabular Form Element". In there, there are two settings you can use: Default Type and Default
Andy

Query based LOV in an updateable report

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