Select List size limitation

Needs some advice. I have some very large select lists in some of my dynamic pages. I am using the Report Region template and APEX_ITEM to create them (see below).
SELECT to_char(APEX_ITEM.SELECT_LIST_FROM_LOV_XL(2,'%null%','SCHOOL TYPE')) FIELD2
from dual;
In 11g, when I have a select list that has lots of entries I get
report error: ORA_22035, Buffer to small for CLOB to CHAR conversion (max 4000 actual 4000).
I tried the same thing on 10g, and it worked. Oracle said it is not a bug, that I should:
1) select the field without using
APEX_ITEM, but change the 'Display As' to select list. But this loses the 'Read Only' condition capability
2)change to APEX_ITEM type to POP_UP LOV (which looks old)
Not sure what changed for 10g to 11g to make it not work anymore.
Any advice on the best way to get around this.

This one has been asked / answered a lot, but in summary you shouldn't use a select list with more than say 100-500 rows. Even if you could create one with 10k rows, it would be a nightmare to scroll through and it would make your page HUGE in terms of kb. It sounds like you're using a tabular form so now you multiply huge select list times the number of rows and you get MASSIVE page (think megabytes, not kilobytes). Use a popup key lov instead.
Tyler Muth
http://tylermuth.wordpress.com
[Applied Oracle Security: Developing Secure Database and Middleware Environments|http://sn.im/aos.book]

Similar Messages

Suggested list size is limited with 10 elements using autoSuggestBehavior

Hi,
I am using the autoSuggestBehavior with inputListOfValuesComponent. suggestedItems come from a ViewObject. When I type a any letter the suggested items list is always is limited with 10 items(event the suggested list is longer) and user must go to another page to see the rest. Is there a way to increase the suggested list size?
Thanks in advance..

With the latest release of Jdeveloper we have a new component with auto suggest, so you dont need to implement any kinda of listeners or javascrips.I have used it as below ;
<af:inputListOfValues id="gittigiYerTitleId" searchDesc="Ara"
popupTitle="Search and Select: #{bindings.ViewMisdt626_1.hints.GittigiYerTitle.label}"
value="#{row.bindings.GittigiYerTitle.inputValue}"
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required="#{bindings.ViewMisdt626_1.hints.GittigiYerTitle.mandatory}"
columns="#{bindings.ViewMisdt626_1.hints.GittigiYerTitle.displayWidth}"
shortDesc="#{bindings.ViewMisdt626_1.hints.GittigiYerTitle.tooltip}"
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</af:inputListOfValues>
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How do i change the size of a select list?

Hello everyone,
I know this is probably a newbie questiopn but i spent some time trying and already browsed for the forum to look and found nothing related to it.
I m using apex 3.1, and i would like to know in what part of the item i define it's size, in the case of a select list where do i put it's size?
In html i would do it like this:
-----------------HTML CODE--------------------------
          <select size="18" class="bigselect">
               <option>Mapa 1</option>
               <option>Mapa 2</option>
               <option>Mapa 3</option>
               <option>Mapa 4</option>
          </select>
-----------------HTML CODE--------------------------
i already tried these and nothing:
HTML Table Cell Attributes
HTML Form Element Attributes <--- this one says i can t define id and size in it
Form Element Option Attributes
thanks and best regards

Hi,
I misunderstood you the first time :)
It seems like APEX is automatically setting the SIZE attribute to 1 when you create a Select List. I'm not sure if you'll manage to change this value before the page is rendered. But if it is really important to you, maybe you can change this attribute after the page is rendered using javascript.
Add this function to the page header section:
<script type="text/javascript">
function setLovSize(){
    var x=document.getElementById("PX_MY_SELECTLIST")
    x.size="18"
</script>Then on the same page, put the following code into Page HTML Body Attribute:
onLoad="setLovSize();"Hope this helps.
Paulo Vale
http://apex-notes.blogspot.com

What is Maximum size for Multi select list?

Hi,
We are using the select_list_from_query given " size=10 attribute " so getting as multiselect list ,but there is a constraint for multiselect list where we can display only 1000 values max i guess,I have around 10,000values to display in list but getting error as given below , how can i overcome this problem in apex?? please suggest me..
getting error saying : ORA-06502: PL/SQL numeric or value error: character string buffer too small
Thanks
Anoo
Edited by: Anoo on Sep 2, 2009 8:00 AM
Edited by: Anoo on Sep 2, 2009 8:06 AM

First of all, I wouldn't use a multiselect list but a shuttle item since this is much better from the handling point of view. Second, the Patrick's comment is valid. You could use the filetering on the shuttle like in this example
http://apex.oracle.com/pls/otn/f?p=31517:166
where your approach would be to show no results by default and give a user a chance to reduce the nubmer of options by choosing some groups from a select list or by typing in some sting.
Denes Kubicek
http://deneskubicek.blogspot.com/
http://www.opal-consulting.de/training
http://apex.oracle.com/pls/otn/f?p=31517:1
-------------------------------------------------------------------

Size of select lists

I am a newbie to app express have a query.
I have defined dynamic LOV's using select list with submit.
I have 5 of these LOV's.
Based on the selection in the LOV's & a GO button i run a report.
My question is regarding the size of the LOV's. they get sized based
on the size of the data that gets populated in the LOV.
Is there a way I can set the size as say fixed size 30 or something of
that sort.
DK

Kostya,
In the HTML Form Element Attributes of your select list put the following:
style="width:195px"
and all the select list items will have the width of 195px.
Denes Kubicek

How to create the same size of all Select lists?

I have a form with select list. Each of it has the size of max length of its content.
It is possible to made it all the same?
Regards Kostya

Kostya,
In the HTML Form Element Attributes of your select list put the following:
style="width:195px"
and all the select list items will have the width of 195px.
Denes Kubicek

Size of select-list

Hi,
I was told that a select list cannot be bigger than 32K - is this still true or has this bug been fixed for version 3?
If this is still true, then how do I avoid getting problems if the select-list becomes bigger than 32K?
Thanks.

Hello user629987 (please tell us your name, we're a friendly group),
I'm not sure about the limit but it's entirely possible. I guess I'm wondering how useful a huge 32k+ select list would be? Have you considered using a pop-up LOV?
Regards,
John

DLP Attachment Scanning - Size Limitations

Is it documented anywhere what the attachment file size limitations are for DLP scanning? In the ESA Configuration documentation I read:
"To scan attachments, the content scanning engine extracts the attachment for the RSA Email DLP scanning engine to scan."
Can you identify what scanning engine is referenced by "content scanning engine" and what is the maximum attachment size it can process? Also are those settings modifiable and some indcation of performance impact if they are increased to a maximum of 50 MB per attachment?
I know you can make some modifications in the DLP policy, however it is our desire to DLP scan every document sent up to our allowable maximum email size.
If large attachments cannot be scanned we may be forced to reduce our maximum message/attachment file size.
We are currently using Async O/S 7.5.1-102 and will be moving to 7.6.0 when it comes GA.

Hello David,
The content scanning engine in reference is the same AsyncOS scanning engine responsible or Message and Content Filter scanning. The maximum size of attachment to scan for this scanning engine is controlled by your 'scanconfig' setttings, as configured in the IronPort CLI. The default 'maximum size of attachment to scan' is 5MB.
IronPort1.example.com>scanconfig
There are currently 6 attachment type mappings configured to be SKIPPED.
Choose the operation you want to perform:
- NEW - Add a new entry.
- DELETE - Remove an entry.
- SETUP - Configure scanning behavior.
- IMPORT - Load mappings from a file.
- EXPORT - Save mappings to a file.
- PRINT - Display the list.
- CLEAR - Remove all entries.
- SMIME - Configure S/MIME unpacking.
[]> setup
1. Scan only attachments with MIME types or fingerprints in the list.
2. Skip attachments with MIME types or fingerprints in the list.
Choose one:
[2]>
Enter the maximum depth of attachment recursion to scan:
[5]>
Enter the maximum size of attachment to scan:
[5242880]>
<...>
Any message that is larger than this limit will be skipped by the scanning engine. This would mean that pertinent DLP policys and filters would not match that same message. Naturally, allowing larger messages to be scanned will result in performance risks, as more system resources would be required to complete the content scanning.
Regards,
-Jerry

Using multiple select lists in ADF

Hi,
I am trying to use a multiple select list in my JSP page, and have a method in the ApplicationModule be called when the Struts action is called. I am following the example ADF tutorials, where the method is added to the ApplicationModule class, then dragged onto the Stuts Flow diagram (to associate it with an action).
I am able to create a dyna form bean for the page that contains the multi select as a type "java.lang.String[]" (string array). I am able get that values that were selected in a normal action's "execute" method. For example:
msf = (DynaActionForm) form;
String[] statusSelection = (String[]) msf.get("multSelectList");
However, I cannot seem to get the "multSelectList" values into a method in my Application Module class. The "multSelectList" is defined in my dynaFormBean as a String[] type. I am passing it in as an argument like the following....
public void setParams(String multSelectList[]) {
This results in the method not being called at all. I am not sure why. Does this have something to do with a String[] not being serializable??
However, if I just attempt to pass other types form items to the method, it works. For example:
public void setParams(String simpleCheckbox) {
Does anyone know how to use multiple select lists in conjunction with ADF?
P.S.
my multSelectList looks something like this:
<select name="multSelectList" multiple size="5">
<option value="ALL">Select All</option>
<option value="preferred">Preferred</option>
<option value="standard">Standard</option>
<option value="approved">Approved</option>
<option value="interim">Interim</option>
</select>

I got this working by changing the signature of the Application Module method to use ArrayList rather than String[], then you can marshal the Struts FormBean contents into an ArrayList to pass up.
To do this, subclass the DataAction by using "Go To Code" off of the context menu and then override the initializeMethodParameters() method:
protected void initializeMethodParameters(DataActionContext actionContext, JUCtrlActionBinding actionBinding)
    //Get the String Array from the Form Bean
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    //convert that to an ArrayList
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    ArrayList params = new ArrayList();
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    actionBinding.setParams(params);
}

Select List Performance Issue in Apex 3.1.2

Hi
It would of great help if you could suggest us for the following
We are facing some issues in Select List performance in Apex 3.1.2 version.
We have 6 select list and all have been cascaded i.e., values of each select list based on pervious list value.
Values in each select list are huge. Because of this, the performance is very slow.
It takes huge time to fetch the data based on other list values.
We cross verified in backend, the same query takes less time compared to the Application.
Any recommedation to fine tune this?
Thanks in advance
Vijay

if your select lists are very huge then it could be the browser that is causing the slow down.
try and create an example using a static HTML file containing a select list of the same size and you may find the same performance issue.
a quick way to create the test would be to save the source of your APEX page as a html file
Craig
[http://www.oracleapplicationexpress.com]

Dynamic select list with more than one value?

I am creating a simple CRUD component for our company's Joomla site. This component allows our users to create discount bundles for our cart according to shopper group and products. I've been using Dreamweaver to author the administrator forms and have run into a bit of a problem. All of my forms work properly, but I need to be able to collect two values from each chosen multi-select listing.
Right now, when a user chooses an item under 'products', the site pushes back product_id, one of the variables I need. I would also like product_parent_id to return with each result as well. I need to be able to insert product_parent_id after the user has chosen their desired products. product_parent_id is located in the same table as product_id.
In the end, I need those two values to be pushed to another table, essentially creating a new entry for each product in the bundle. Referenced by ID and parent ID.
Pasted below is the administrator form code. Any suggestions would be wonderful.
Thanks!
<?php require_once('Connections/SQLTest.php'); ?>
<?php
if (!function_exists("GetSQLValueString")) {
function GetSQLValueString($theValue, $theType, $theDefinedValue = "", $theNotDefinedValue = "")
if (PHP_VERSION < 6) {
    $theValue = get_magic_quotes_gpc() ? stripslashes($theValue) : $theValue;
$theValue = function_exists("mysql_real_escape_string") ? mysql_real_escape_string($theValue) : mysql_escape_string($theValue);
switch ($theType) {
    case "text":
      $theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";
      break;
    case "long":
    case "int":
      $theValue = ($theValue != "") ? intval($theValue) : "NULL";
      break;
    case "double":
      $theValue = ($theValue != "") ? doubleval($theValue) : "NULL";
      break;
    case "date":
      $theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";
      break;
    case "defined":
      $theValue = ($theValue != "") ? $theDefinedValue : $theNotDefinedValue;
      break;
return $theValue;
$editFormAction = $_SERVER['PHP_SELF'];
if (isset($_SERVER['QUERY_STRING'])) {
$editFormAction .= "?" . htmlentities($_SERVER['QUERY_STRING']);
if ((isset($_POST["MM_insert"])) && ($_POST["MM_insert"] == "form1")) {
$insertSQL = sprintf("INSERT INTO jos_vm_related_products (product_id, related_product_id) VALUES (%s, %s)",
                       GetSQLValueString($_POST['products'], "int"),
                       GetSQLValueString($_POST['products'], "int"));
mysql_select_db($database_SQLTest, $SQLTest);
$Result1 = mysql_query($insertSQL, $SQLTest) or die(mysql_error());
if ((isset($_POST["MM_insert"])) && ($_POST["MM_insert"] == "form1")) {
$insertSQL = sprintf("INSERT INTO jos_vm_relations (discount_type, discount, shopper_group_id) VALUES (%s, %s, %s)",
                       GetSQLValueString($_POST['amount_off_total'], "text"),
                       GetSQLValueString($_POST['dollar_amount'], "int"),
                       GetSQLValueString($_POST['shoper_group'], "int"));
mysql_select_db($database_SQLTest, $SQLTest);
$Result1 = mysql_query($insertSQL, $SQLTest) or die(mysql_error());
if ((isset($_POST["MM_insert"])) && ($_POST["MM_insert"] == "form1")) {
$insertSQL = sprintf("INSERT INTO jos_vm_relations_messages (discount_message) VALUES (%s)",
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mysql_select_db($database_SQLTest, $SQLTest);
$Result1 = mysql_query($insertSQL, $SQLTest) or die(mysql_error());
$maxRows_Products = 10;
$pageNum_Products = 0;
if (isset($_GET['pageNum_Products'])) {
$pageNum_Products = $_GET['pageNum_Products'];
$startRow_Products = $pageNum_Products * $maxRows_Products;
mysql_select_db($database_SQLTest, $SQLTest);
$query_Products = "SELECT * FROM jos_vm_product";
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$Products = mysql_query($query_limit_Products, $SQLTest) or die(mysql_error());
$row_Products = mysql_fetch_assoc($Products);
if (isset($_GET['totalRows_Products'])) {
$totalRows_Products = $_GET['totalRows_Products'];
} else {
$all_Products = mysql_query($query_Products);
$totalRows_Products = mysql_num_rows($all_Products);
$totalPages_Products = ceil($totalRows_Products/$maxRows_Products)-1;
mysql_select_db($database_SQLTest, $SQLTest);
$query_shopper_group = "SELECT * FROM jos_vm_shopper_group";
$shopper_group = mysql_query($query_shopper_group, $SQLTest) or die(mysql_error());
$row_shopper_group = mysql_fetch_assoc($shopper_group);
$totalRows_shopper_group = mysql_num_rows($shopper_group);
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
</head>
<body>
<form id="form1" name="form1" method="POST" action="<?php echo $editFormAction; ?>">
<p>
    <label for="products"></label>
Choose the product(s) you would like to add to your new discount bundle.</p>
<p>
    <select name="products" size="1" multiple="MULTIPLE" id="products">
      <option value=""></option>
      <?php
do {
?>
      <option value="<?php echo $row_Products['product_id']?>"><?php echo $row_Products['product_name']?></option>
      <?php
} while ($row_Products = mysql_fetch_assoc($Products));
$rows = mysql_num_rows($Products);
if($rows > 0) {
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$row_Products = mysql_fetch_assoc($Products);
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</p>
<p>
<input type="hidden" name="hiddenField" id="hiddenField" />
</p>
<p>Choose the subscriber group that you would like this discount to apply to.</p>
<p>
    <select name="shoper_group">
      <?php
do {
?>
      <option value="<?php echo $row_shopper_group['shopper_group_id']?>"><?php echo $row_shopper_group['shopper_group_name']?></option>
      <?php
} while ($row_shopper_group = mysql_fetch_assoc($shopper_group));
$rows = mysql_num_rows($shopper_group);
if($rows > 0) {
      mysql_data_seek($shopper_group, 0);
$row_shopper_group = mysql_fetch_assoc($shopper_group);
?>
    </select>
</p>
<p>Please enter the dollar amount that you would like to adjust.
    <label for="dollar_amount"><br />
    </label>
    <input type="text" name="dollar_amount" id="dollar_amount" />
</p>
<p>
    <input name="amount_off_total" type="hidden" id="amount_off_total" value="amount_off_total" />
</p>
<p>Enter any message you would like the shopper to view during shopping and checkout when this discount is applied.</p>
<p>
    <label for="discount_message"></label>
    <textarea name="discount_message" id="discount_message" cols="45" rows="5"></textarea>
</p>
<p>
    <input type="hidden" name="MM_insert" value="form1" />
</p>
<p>
    <input type="submit" name="submit" id="submit" value="Submit" />
</p>
</form>
<br />
</body>
</html>
<?php
mysql_free_result($Products);
mysql_free_result($shopper_group);
?>

Thanks guys for you reply , [Cor Ligthert] I post this in Visual basic section, I appreciate your solution [dbasnett],
Thanks for that idea of attribute <Flags> [Blackwood] ,
Dictionary will not work in IF Statement as I want it , also ParamArray tbl() , thanks guys.
Here is the code
Module myModule
<Flags()>
Enum Table As Integer
Table1 = 2
Table2 = 4
Table3 = 8
Table4 = 16
Table5 = 32
End Enum
Public Sub MySub(ByVal Table As Table)
If (Table And Table.Table1) = Table.Table1 Then
MsgBox((Table And Table.Table1))
End If
If (Table And Table.Table2) = Table.Table2 Then
MsgBox((Table And Table.Table2))
End If
If (Table And Table.Table3) = Table.Table3 Then
MsgBox((Table And Table.Table3))
End If
If (Table And Table.Table4) = Table.Table4 Then
MsgBox((Table And Table.Table4))
End If
If (Table And Table.Table5) = Table.Table5 Then
MsgBox((Table And Table.Table5))
End If
End Sub
End Module
Class Myclass
Private sub CallTables()
MySub(Table.Table1 Or Table.Table2)
MySub(Table.Table2 Or Table.Table3 Or Table.Table4)
MySub(Table.Table1 Or Table.Table4 Or Table.Table5)
MySub(Table.Table1 Or Table.Table2 Or Table.Table4 Or Table.Table5)
MySub(Table.Table1 Or Table.Table2 Or Table.Table3 Or Table.Table4 Or Table.Table5)
end sub
end Class

ORDER BY using a Non-SELECT list column

I need to SELECT DISTINCT values from a column and ORDER it by another column in the same table which is not in the SELECT list. When i got
ORA-01791: not a SELECTed expression error, I tried various things like putting ORDER BY clause in the outer query, using a DISTINCT in the ORDER BY clause,..etc but couldn't succeed.
SQL> create table sample_table (col1 number, col2 number);
Table created.
SQL> select distinct(col1)
2 from sample_table
3 order by col2;
order by col2
ERROR at line 3:
ORA-01791: not a SELECTed expression
SQL> select col1 from
2 (select distinct(col1) col1 from sample_table)
3 order by col2;
order by col2
ERROR at line 3:
ORA-00904: "COL2": invalid identifier
SQL> select distinct(col1) col1 from sample_table
2 order by distinct(col2);
order by distinct(col2)
ERROR at line 2:
ORA-00936: missing expressionAny workarounds for this seemingly simple requirement?

Any workarounds for this seemingly simple requirement?This is not a simple requirement. It is a self contradictory requirement.
You want to order an result on a attribute that you don't have. This is not possible from a logical point of view.
Like saying,
"I want the typical/distinct family size in houses in my town, ordered by house number."

Problem with cascading select lists

Hi All,
I have two select lists on a form, category and sub category. When I select the category the sub-category list gets populated and a report is displayed. When I select the sub-category the report listing re-displays limited by sub-category. Works fine.
However, when I go back and select another category, the report returns no data on the first attempt. In debug mode I note that although visually the sub-category has been reset, the session value has not, and so the report is selecting on an invalid combination of category and sub-category.
How do I get the sub-category to reset when the category changes?
I have tried an onChange javascript entry on the form attribute but it does not work since APEX inserts its own onChange before my one.
Suggestions please...thanks in advance.
Sajit

Hi,
can you setup an example on apex.oracle.com which fails so that we can have a look.
Or you can use Firebug for Firefox and have a look what is sent to the server and what the response it. Check the "Console" tab. I suspect you will see an error when you trigger the refresh.
Regards
Patrick
My Blog: http://www.inside-oracle-apex.com
APEX Plug-Ins: http://apex.oracle.com/plugins
Twitter: http://www.twitter.com/patrickwolf

Horizontal scroll bar muti select list

Hi,
I have a multi select list the size of which is restricted doe to other items on the page but some of the values in the lov are wider that the display area, is it possible to get a scroll bar at the bottom so users can scroll alaong and see the few values that are too big.
Thanks Andy

The code looks like this. I can really use some help here.
Label grp = new Label("Group By:");
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     gridbag.setConstraints(grp, constraints);
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     gridbag.setConstraints(grplist, constraints);
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          grplist.add(data[0]);
add(grplist);
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     buildConstraints(constraints, 1, 12, 1, 1, 1, 1);
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     buildConstraints(constraints, 1, 13, 1, 1, 1, 1);
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     gridbag.setConstraints(aver, constraints);
     add(aver);
     remove(aver);

How to fix the length of select list box?

Halo, i am doing the research. I need to find out what is the method to fix the length of select list box. This is b'cos i can set the length of select list due to different length of record(s)/data(s).
Another question to select list box. What is the maximum length of the select list box?? Can i enter the character with 255 lenght??
Thank you very much..... a prompt reply will be appreciate!!

Thanks for ur reply! actually that answer that you gave is right, but i also need to know what is the maximum lenght of character in the select list box?? any idea to that??
Meanwhile, i also need to know how can i make the character display in select list box dynamically?? that means i can change the font style or font size??
Anyway, thanks for ur answer.
bscs.

Select List size limitation

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