Workflow Attribute Names

Answer me this...
When you create a workflow in the Workflow builder, one is FORCED to have the item level and function level attribute internal names to be all uppercase. Fine. So I make a work attr called MY.ATTR.NAME.
But then, in a PL/SQL function, I am allowed to call WF_ENGINE.GetItemAttrText(itemtype,itemkey,'MY.attr.NAME') and it will fail. It will fail because there is no such attribute called MY.attr.NAME and that is because the workflow builder creates all attributes with uppercase names.
Why in the GetItemAttr and GetActivityAttr functions does Oracle not call UPPERCASE on the names? It would only make sense, so that there is a normalized form of attribute naming? Or make the search for attribute names case-insensitive. Looking at the function body, neither is done. Why is that?
Its forcing me to wrap the Oracle-provided functions with my own that call UPPERCASE on the attr names and then call the Oracle functions because I have many users who will be creating workflows and their corresponding PL/SQL functions and I'd like to make it as painless as possible.

Raja,
How does one go about opening an ER? Through my MetaLink account?
I mean, its not absolutely necessary although I would like to see it in a future patch or version. I just didn't understand the logic behind it... Force users to be able to create only uppercased attribute names but when they go to retrieve them, allow any capitalization. That just leaves room for unnecessary errors.

Similar Messages

How to find database attribute names that correspond to page labels

I've been tasked with creating one or more views to be used in creating reports. The users know data items by the labels on pages, not the database attribute names. So my dilemma is how to correlate the page labels to the database attributes.
For example, there's a course details web page. It includes items labeled "Replacement Course", "Inherited Competency Update Setting" and "Attachments", among others.
Focusing on "Inherited Competency Update Setting"... there's no database attribute called that. I've found COMPETENCY_UPDATE_LEVEL, but I don't know if that is it. And is an "inherited" one different than a non-inherited.
I've googled about, and discovered that "Inherited Competency Update Setting" can be set by using a workflow named OTA_COMPETENCE_UPDATE_JSP_PRC and setting an attribute named HR_APPROVAL_REQ_FLAG. Further research has lead me to determine that HR_APPROVAL_REQ_FLAG is used only within the workflow system. I've found in SYS.ALL_SOURCE a package OTA_COMPETENCE_SS with a function that gets that attribute's value. It includes a query against WF_ACTIVITY_ATTR_VALUES which retrieves values of YES_DYNAMIC, APPROVAL, NO, YES or NOTIFYONLY. I've not found any code that uses the function.
Using ALL_TAB_COLUMNS, I'd found COMPETENCY_UPDATE_LEVEL in OTA_OFFERINGS, which contains "APPROVAL" or null. So that may be what I seek, but I can't confirm it.
I also have been unable to find the translation from "APPROVAL" to "Notification, Automatic Update after Approval" (assuming I'm correct and this is the field)
I've found a Training Administration Technical Reference Manual for Release 11i, which contains information about the database, but I've found no corresponding document for Learning Management for 12.1 (Only installation and user guides).
And this is many days' research to find one attribute. Which I'm not certain I've found.
So, in this case in particular, or any case in general, how does one find the database name for an attribute, given the page label's text??
Thank you
Cornell

Whoa, easier than I'd thought...
When the page first shows up, there's the About This Page link, at the bottom, clicking it you get to the About Page.
I noted two sections, Page Definition and Business Component References Details.
I expanded Business Component References Details and found View Objects. There's a list of views used. I was dismayed that the views don't appear to be in the database. Of course, they're camelCased Java names of Java objects, not database names (although sometimes some of the camelCased tokens might correspond to parts of view names). They are, however, clickable and when clicked the definition shows up, and I was thinking that it would take a long while to find what I was seeking.
But... Hit the Expand All link in Page Definition, do a find on page for the desired label, and there it is... a row with the label, view object name and attribute! Pay dirt!
Then go to the Business Component References Details, find the View Object, click it, and there's the view :-) Find the attribute, then the table... easy peasy!
Thank y'all again

Notification activity's message must have a respond attribute name 'RESULT'

I've created a basic approval notification using the WFSTD_APPROVAL lookup type of Approve or Reject. I have it routing so that if the document is rejected it directs to the "End" Function Activity and if the document is approved it continues on with the remaining workflow. I keep getting this error when trying to save or verify the workflow. "Notification activity's message must have a respond attribute name 'RESULT' with lookup type 'WFSTD_APPROVAL'" Can anyone please direct me as to how I would set this respond attribute or how can I get rid of the warning message?

Hi,
On the message (within Workflow Builder), click on the Result tab, and populate the details of the result type, display name (prompt) etc. there. This will need to match the result type of the notification.
That should do it!
HTH,
Matt
WorkflowFAQ.com - the ONLY independent resource for Oracle Workflow development
Alpha review chapters from my book "Developing With Oracle Workflow" are available via my website http://www.workflowfaq.com
Have you read the blog at http://thoughts.workflowfaq.com ?
WorkflowFAQ support forum: http://forum.workflowfaq.com

FND_MESSAGE.GET_String does not print Attribute name.

Hi ,
I want to show the workflow notification messages through fnd_messages in application developer. Now, the issue is I am able to get the message as entered in message dictionary but not able to print the Name of the attribute .
for ex: from the below code MESSAGE 3 is an acknowledgement message which will show the approver name to which the po no has been routed . in the application developer the attribute &APPR_NAME is mentioned but when the workflow is triggered the notification does not print the name of the approver in specified attribute .
Message3:= FND_MESSAGE.GET_STRING ('XXAPL','MESSAGE3');
Wf_Engine.SetItemAttrText(itemtype => p_itemtype,
itemkey => p_itemkey ,
aname =>'APRR_BDY_MSG',
avalue => Message4 );
Please guide me .
Regards,
SKG

You are essentially trying to include an attribute inside an attribute, which is not going to work.
If you know what the attribute names are going to be, then you can use the standard SQL REPLACE function in your code to replace the attribute name with the current value. That would allow you to make the content flexible in terms of the wording in the FND message, but not allow you to add / modify the attributes included in the message without revisiting the PL/SQL code and including the new attributes in there to replace.
Alternatively, you would need to look at making the search and replace of the attribute name truly dynamic - parse the body of the message to find the name of the attribute in there to replace and do that replacement. However, this isn't straightforward by any means - it's easy to find the start of the attribute name, because it begins with an ampersand. But how do you find the end of the attribute name - the following character after an attribute name could be a space or any punctuation mark. Then, how do you know whether the attribute is called (for example) &ATTR1 or &ATTR1? or &ATTR1. ?
For simplicity, I would go with the first of these - without a massive amount of thought, the second is an intensive, complex idea.
HTH,
Matt
WorkflowFAQ.com - the ONLY independent resource for Oracle Workflow development
Alpha review chapters from my book "Developing With Oracle Workflow" are available via my website http://www.workflowfaq.com
Have you read the blog at http://www.workflowfaq.com/blog ?
WorkflowFAQ support forum: http://forum.workflowfaq.com

How to change the attribute name for a relation

When the Data Modeler engineers a logical model into a relational model it create table columns for the relations. The names of the generated columns are listed in the attributes list in the properties dialog of the relation. The actual name of the attribute gets calculated by the attribute name of the entity which is part of the relation. This is okay, if there is only one relation between two entities. But when there are two relations between two entities the second attribute gets a stupid number suffix. This makes it impossible to give the attribute a useful semantic meaning.
When I engineer the model into a relational model I can change the column name in the relational model. Changing the column name in the relational model is not perfect but it would be okay for me, if it would not be overwritten during the next engineering run.
So I have two questions:
How can I change the attribute name in the attributes section of the properties dialog of a relation? See here for screen shot:
http://public.ceving.de/2012050300/relationattribute.png
And if it is not possible:
How can I preserve any changes on column names in the relational model during a re-engineering run?
Edited by: 931739 on 03.05.2012 08:07

Hi,
I've logged an Enhancement request on this.
I don't believe it's possible to change it from the Entity or Relationship dialog, as it's not updatable in these dialogs.
What you can do is change it in the Relational Model, and then reverse engineer the change back to the Logical Model.
David

Get the attributes NAME and VALUE from an XML

I really love this forum :)
I load an XML an populate a Tree, from which I start to drag
items.
the xml looks like this:
<myTag attrName="attrValue"
otherAttrName="otherAttrValue"/>
var ds:DragSource = event.dragSource;
var var1:String =(event.dragInitiator as
Tree).value.@attrName;
-> the var1 variable has now: "attrValue"
my question is.. how can I get all the attributes' names? in
this example: attrName and otherAttrName (suppose I don't know the
structure of that xml node)
what about attributes values?
thank you!

The snippet below takes an xml node(nodeCur), loops over the
attributes list and builds an array that contains the attribute
name and value for each attribute. It comes from a sample app that
allows you to edit an xml file.
Sorry that the forum will remove the formatting
var aDPAttributes:Array = new Array();
var xlAttributes:XMLList = nodeCur.@*;
var attribute:Attribute;
for ( var i:int = 0; i < xlAttributes.length(); i++) {
aDPAttributes.push({name:xlAttributes [ i ]
.name(),value:xlAttributes [ i ] });
dgAttributes.dataProvider = aDPAttributes; //set the property
sheet dataProvider
Tracy

Cannot create or replace : The specified extended attribute name was invalid.

New problem arrived today. Trying to copy a file from 10.6 server with an XP (SP3) client. I get this error:
Cannot create or replace (file name here): The specified extended attribute name was invalid.
The contents of the file can be copied, but not the folder. Other files can be copied. There are no funny characters. The name is not too long. I propogated the permissions on the share and that had no affect. The problem exists on three different XP systems. Can't find extended properties that could be causeing a problem. Any ideas?

Nikon just released a Firmware update today for the D750

Automatic Generation of classes with required attribute names

Hi ,
I am new to XML technologies ...I am having a problem in deciding whether I
should use JAXB or Castor for data binding.
The problem is the attributes I am to use are named differently as that found in
the DTD.I have creted my own classes using the required attribute names and the
n mapped them using the Castor mapping with the attributes.
I was wondering how should I achieve --"automatic generation of classes" with th
e specified attribute names?
I understand that JAXB can be used to automatically generate classes ,but this
uses the same default names as that of the XML file ..is there a way of forcing
JAXB to generate classes that use my name attributes rather than that of the XM
L dtd
If I use Castor ..is there a way to do the same.Generate Classes with the specif
id attributes

Hi ,
I am new to XML technologies ...I am having a problem in deciding whether I
should use JAXB or Castor for data binding.
The problem is the attributes I am to use are named differently as that found in
the DTD.I have creted my own classes using the required attribute names and the
n mapped them using the Castor mapping with the attributes.
I was wondering how should I achieve --"automatic generation of classes" with th
e specified attribute names?
I understand that JAXB can be used to automatically generate classes ,but this
uses the same default names as that of the XML file ..is there a way of forcing
JAXB to generate classes that use my name attributes rather than that of the XM
L dtd
If I use Castor ..is there a way to do the same.Generate Classes with the specif
id attributes

Text variable replacementpath with key, attribute, name then what

text variable replacementpath with key, attribute, name then what are the changes in my report in quary designer

The XML 1.0 spec does not allow elements or attribute names to include spaces in the names.
See: http://www.xml.com/axml/axml.html
for a nice annotated version of the spec.
[Definition:] A Name is a token beginning with a letter or one of a few punctuation characters, and continuing with letters, digits, hyphens, underscores, colons, or full stops, together known as name characters. Names beginning with the string "xml", or any string which would match (('X'|'x') ('M'|'m') ('L'|'l')), are reserved for standardization in this or future versions of this specification.

ERROR ITMS-9000: "index_split_000.html(257): attribute "name" not allowed here; expected attribute "accesskey", "charset", "class", "coords", "dir", "href", "hreflang", "id", "rel", "rev", "shape", "style", "tabindex", "target", "title", "type" or "xml:la

I have all these errors, can anyone help with this all means? trying to get my book published in iBooks. Nedd your help. Thanks, Jo
ERROR ITMS-9000: "index_split_000.html(257): attribute "name" not allowed here; expected attribute "accesskey", "charset", "class", "coords", "dir", "href", "hreflang", "id", "rel", "rev", "shape", "style", "tabindex", "target", "title", "type" or "xml:lang"" at Book (MZItmspBookPackage)
Use of the block quote element can cause ePubecheck to give the error "text not allowed here". Text must not be alone inside of a body tag and if it is not enclosed in some other block level tag, this may lead to the error you are receiving.

I have all these errors, can anyone help with this all means? trying to get my book published in iBooks. Nedd your help. Thanks, Jo
ERROR ITMS-9000: "index_split_000.html(257): attribute "name" not allowed here; expected attribute "accesskey", "charset", "class", "coords", "dir", "href", "hreflang", "id", "rel", "rev", "shape", "style", "tabindex", "target", "title", "type" or "xml:lang"" at Book (MZItmspBookPackage)
Use of the block quote element can cause ePubecheck to give the error "text not allowed here". Text must not be alone inside of a body tag and if it is not enclosed in some other block level tag, this may lead to the error you are receiving.

xsl:attribute name="xdofo:rowspancell-repeat-nextpage" xdofo:ctx="block" t

<xsl:attribute name="xdofo:rowspancell-repeat-nextpage" xdofo:ctx="block">true</xsl:attribute>
Hello, can you provide me some example on how to use this code? i tried putting this code in a field in a table however it doesn't do any changes in my report, the header still don't repeat.
i'm aware of the word functionality to repeat a header, but due to the structure of my table, that method will changes the output of my report. the reason is i have a looping condition in that header, so if i tried to repeat it, the looping also repeats.
to summarize my table outline:
<HEADER1>---repeating already
<HEADER2 with looping condition>---> the one that i want to repeat
both headers belongs to a one table
i tried separating the header 2 to another table but it ruins my report output
any methods on how this can be done?
thanks in advance! :)

Hi All
Thanks For Your Efforts and replays
could anyone pls raise SR for it ?Because I do not have Privilege to do so

ERROR[WSDL Parser] Attribute 'name' not found at: wsdl:documentation

Hello,
I'm currently having a problem generating the Java source code from a WSDL, because the WSDL2Service ant class bundled with the WLS install (in the /server/lib/webservices.jar library) does not comply with the WSDL XSD.
Check http://schemas.xmlsoap.org/wsdl/
Especially if you add a <wsdl:documentation> in your <wsdl:portType> you end up with a WSDLParser error, while the file perfectly validates through Eclipse:
     <wsdl:portType name="ImportPortType">
          <wsdl:documentation>
               Definitions of available operations through the webservice
          </wsdl:documentation>
          <wsdl:operation name="importData">
               <wsdl:input message="tns:ImportInput" />
               <wsdl:output message="tns:ImportOutput" />
          </wsdl:operation>
     </wsdl:portType> The error is:
[wsdl2Service] Generating web service from wsdl C:\Java\Workspaces\MyWorkspace/WebServices/wsdl/Import.wsdl
[wsdl2Service] weblogic.webservice.wsdl.WSDLParseException: ERROR[WSDL Parser] Attribute 'name' not found at:<wsdl:documentation>Definitions of available operations through the webservice
[wsdl2Service]           </wsdl:documentation>
[wsdl2Service]      at weblogic.webservice.wsdl.WSDLParser.getMustAttribute(WSDLParser.java:263)
[wsdl2Service]      at weblogic.webservice.wsdl.WsdlPortType.parsePortType(WsdlPortType.java:29)
[wsdl2Service]      at weblogic.webservice.wsdl.WsdlBinding.parseBinding(WsdlBinding.java:45)
[wsdl2Service]      at weblogic.webservice.wsdl.WsdlPort.parsePort(WsdlPort.java:46)
[wsdl2Service]      at weblogic.webservice.wsdl.WsdlService.parseService(WsdlService.java:37)
[wsdl2Service]      at weblogic.webservice.wsdl.WsdlDefinitions.parseDefinition(WsdlDefinitions.java:38)
[wsdl2Service]      at weblogic.webservice.wsdl.WSDLParser.visit(WSDLParser.java:71)
[wsdl2Service]      at weblogic.webservice.WebServiceFactory.createFromWSDL(WebServiceFactory.java:111)
[wsdl2Service]      at weblogic.webservice.tools.build.internal.WSDL2JavaServiceImpl.runClassgen(WSDL2JavaServiceImpl.java:210)
[wsdl2Service]      at weblogic.webservice.tools.build.internal.WSDL2JavaServiceImpl.run(WSDL2JavaServiceImpl.java:147)
[wsdl2Service]      at weblogic.ant.taskdefs.webservices.wsdl2service.WSDL2Service.doWSDL2JavaService(WSDL2Service.java:211)
[wsdl2Service]      at weblogic.ant.taskdefs.webservices.wsdl2service.WSDL2Service.execute(WSDL2Service.java:131)
[wsdl2Service]      at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
[wsdl2Service]      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[wsdl2Service]      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
[wsdl2Service]      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[wsdl2Service]      at java.lang.reflect.Method.invoke(Method.java:585)
[wsdl2Service]      at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:105)
[wsdl2Service]      at org.apache.tools.ant.Task.perform(Task.java:348)
[wsdl2Service]      at org.apache.tools.ant.Target.execute(Target.java:357)
[wsdl2Service]      at org.apache.tools.ant.Target.performTasks(Target.java:385)
[wsdl2Service]      at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1329)
[wsdl2Service]      at org.apache.tools.ant.helper.SingleCheckExecutor.executeTargets(SingleCheckExecutor.java:38)
[wsdl2Service]      at org.eclipse.ant.internal.ui.antsupport.EclipseSingleCheckExecutor.executeTargets(EclipseSingleCheckExecutor.java:30)
[wsdl2Service]      at org.apache.tools.ant.Project.executeTargets(Project.java:1181)
[wsdl2Service]      at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:416)
[wsdl2Service]      at org.apache.tools.ant.taskdefs.CallTarget.execute(CallTarget.java:105)
[wsdl2Service]      at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
[wsdl2Service]      at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
[wsdl2Service]      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[wsdl2Service]      at java.lang.reflect.Method.invoke(Method.java:585)
[wsdl2Service]      at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:105)
[wsdl2Service]      at org.apache.tools.ant.Task.perform(Task.java:348)
[wsdl2Service]      at org.apache.tools.ant.Target.execute(Target.java:357)
[wsdl2Service]      at org.apache.tools.ant.Target.performTasks(Target.java:385)
[wsdl2Service]      at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1329)
[wsdl2Service]      at org.apache.tools.ant.helper.SingleCheckExecutor.executeTargets(SingleCheckExecutor.java:38)
[wsdl2Service]      at org.eclipse.ant.internal.ui.antsupport.EclipseSingleCheckExecutor.executeTargets(EclipseSingleCheckExecutor.java:30)
[wsdl2Service]      at org.apache.tools.ant.Project.executeTargets(Project.java:1181)
[wsdl2Service]      at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:416)
[wsdl2Service]      at org.apache.tools.ant.taskdefs.CallTarget.execute(CallTarget.java:105)
[wsdl2Service]      at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
[wsdl2Service]      at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
[wsdl2Service]      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[wsdl2Service]      at java.lang.reflect.Method.invoke(Method.java:585)
[wsdl2Service]      at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:105)
[wsdl2Service]      at org.apache.tools.ant.Task.perform(Task.java:348)
[wsdl2Service]      at org.apache.tools.ant.Target.execute(Target.java:357)
[wsdl2Service]      at org.apache.tools.ant.Target.performTasks(Target.java:385)
[wsdl2Service]      at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1329)
[wsdl2Service]      at org.apache.tools.ant.Project.executeTarget(Project.java:1298)
[wsdl2Service]      at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
[wsdl2Service]      at org.eclipse.ant.internal.ui.antsupport.EclipseDefaultExecutor.executeTargets(EclipseDefaultExecutor.java:32)
[wsdl2Service]      at org.apache.tools.ant.Project.executeTargets(Project.java:1181)
[wsdl2Service]      at org.eclipse.ant.internal.ui.antsupport.InternalAntRunner.run(InternalAntRunner.java:423)
[wsdl2Service]      at org.eclipse.ant.internal.ui.antsupport.InternalAntRunner.main(InternalAntRunner.java:137)
BUILD FAILED
C:\Java\Workspaces\MyWorkspace\EAR\ant\build.xml:22: The following error occurred while executing this line:
C:\Java\Workspaces\MyWorkspace\EAR\ant\build.xml:26: The following error occurred while executing this line:
C:\Java\Workspaces\MyWorkspace\EAR\ant\build_config.xml:65: weblogic.webservice.tools.build.WSBuildException: weblogic.webservice.wsdl.WSDLParseException: ERROR[WSDL Parser] Attribute 'name' not found at:<wsdl:documentation>Definitions of available operations through the webservice
          </wsdl:documentation> Digging through the WSDLPortType class (package weblogic.webservice.wsdl ) decompiled code, I clearly saw this kind of parsing does not respect the WSDL XSD:
public class WsdlPortType {
    public WsdlPortType() {
        operations = new ArrayList();
    void parsePortType(WSDLParser wsdlparser, XMLNode xmlnode, Port port) throws WSDLParseException {
        Iterator iterator = xmlnode.getChildren();
        do {
            if(!iterator.hasNext())
                break;
            XMLNode xmlnode1 = (XMLNode)iterator.next(); // THE NEXT XML NODE IS NOT COMPULSORILY THE <wsdl:operation> ONE!!!
            String s = wsdlparser.getMustAttribute("name", xmlnode1);
            if(wsdlparser.canHandleMethod(xmlnode1)) {
                weblogic.webservice.Operation operation = port.addOperation(s);
                WsdlOperation wsdloperation = new WsdlOperation();
                wsdloperation.parseOperation(wsdlparser, operation, xmlnode1);
                operations.add(wsdloperation);
        } while(true);
    private ArrayList operations;
} X-(
Edited by maxxyme at 03/13/2008 10:34 AM

I created a new project and tried to repeat the steps to import. Still getting the same error.
This is my Message type definition if that helps
<message name="Composite_Weather_ServiceRequestMessage">
          <part name="payload" type="tns1:NDFDgenRequest"/>
     </message>
     <message name="Composite_Weather_ServiceResponseMessage">
          <part name="payload" type="tns1:NDFDgenResponse"/>
     </message>

Getting list of view`s attributes names

Hi experts,
Is it possible to get list of attributes names on a view? After calling
create_view(...)
in controller I would like to iterate through all view`s attributes and fetch data from model for all attributes with the same name on view and model. So, I need a way how to get information about all attributes on a view.
Best regards, Maksim Rashchynski.

Hi Maksim Rashchynski ,
You should use model data binding to cater your requirement.    What you have to do is define all your attributes in model and just define a reference in page attributes of your view using
type ref to your_model
now in your View code like this
<htmlb:label for    = "Myfield"
                 design = "EMPHASIZED" />
    <htmlb:inputField id      = "fldid"
                      value   = "//model/field1"
                       disabled ="False"></htmlb:inputField>
what will happen after this is you can easily get your data to your view directly from model and viceversa.
Hope it helps else revert back.
Regards
Amit Kumar

Attribute name images in table headers

Hi all,
it is quite easy to use attribute images for the text values in Publisher. But how can I use the attribute image for the attribute name in Publisher? I would like to have one column with an image in the header and text values to be shown for the attribute values. Is that possible and if not, what for do we have attribute images?
Thanks in advance.
Best regards
Christian

A LOB variable is actually a pointer - or as the documentation calls it, a locator variable. (why they did not call it by its real name, a pointer, needs to be questioned).
The preferred API to use for LOB operations in PL/SQL is DBMS_LOB.
As a LOB variable is a pointer, you do not need to create a copy of the LOB, change the copy, and overwrite the original with the copy. You can directly write to a locked row's LOB when you have a pointer to that LOB (bypassing the SQL UPDATE statement for example).
SQL> create table tab1( id number, document clob );
Table created.
SQL> -- a row is created with a lob
SQL> insert into tab1 values( 1, 'test123.' );
1 row created.
SQL>SQL> -- updating the lob without an UPDATE statement
SQL> declare
2          doc     clob;
3          line    varchar2(32767);
4 begin
5          -- create a pointer to the lob
6          select document into doc from tab1 where id = 1 for update;
7
8          -- write to lob in row via pointer
9          line := ' What do you want, universe? (Klingon translation for "Hello world.")';
10          DBMS_LOB.WriteAppend( doc, length(line), line );
11          commit;
12 end;
13 /
PL/SQL procedure successfully completed.
SQL>SQL> select * from tab1;
        ID DOCUMENT
         1 test123. What do you want, universe? (Klingon translation for "Hello world.")
SQL>

JSTL Problem with attribute names

(Sorry for double posting. I've asked this question on javaranch, but did not get any answer. So I hope you can help me.)
The values I pass (request.setAttribute etc.) from my servlet to my JSP pages have often dots in their names like "my.variable" (Assume for the following that my.variable justs holds the String "hello").
I want to use <c:out > to print the value of "my.variable". Obviously the naming scheme collides with the expression language ("my" is not an object and certainly does not have the getter getVariable). Is there a way to work around this problem?

What? Why do you consider it a bad way? It's the only
naming scheme I know!
It's pretty straight forward to use the package name
to make your attribute names unique. See either Struts
or Java Petstore (org.apache.struts.Globals or
com.sun.j2ee.blueprints.waf.controller.web.util.WebKeys
as an example.Btw those Globals and WebKeys, are static finals or constants.
this is something completely different, and if you would really look good in stead of refusing some friendly advice you'll see that indeed the packages are separated with a . and the variables are with a _
so calm down and try to listen what we say.
If you give to java a x.y he'll thing y is a method of x or that y is a class in the package x
ok?
greetings

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