Multiple returns in a function

Hello,
I have a requirement where price for a product at a store is calculated and returned in a function.
1. First check if there is any 'advertised price' and if there is any, return it.
2. Check if there is any 'every day low price' and if there is any, return it.
3. If both above conditions doesn't exist, then get it straight from another table.
Conditions to check if 1 or 2 exists are different. How can I control the logic to go to 2 if 1 doesn't exist? I tried with separate begin end blocks. But, using this, when condition 1 is not satisfied, it is directly going to exceptions .. without trying for 2. Thanks,

Thanks for all the responses.
I was wondering if this design pattern is any better. Can you suggest? Thanks,
BEGIN
v_sql := condition 1
execute immediate v_sql;
EXCEPTION
WHEN NO DATA FOUND THEN
BEGIN
v_sql := condition 2
execute immediate v_sql;
EXCEPTION
WHEN NO DATA FOUND THEN
BEGIN
v_sql := condition 3
execute immediate v_sql;
EXCEPTION
WHEN OTHERS THEN
throw error
END --condition3
END --condition 2
END --condition 1

Similar Messages

How do I get multiple return results from a function

IDBASKET IDSTAGE DTSTAGE
3 1 24-JAN-03
3 5 25-JAN-03
4 1 13-FEB-03
4 5 13-FEB-03
5 3 21-FEB-03
I input is a single IDBASKET number from this table and this function works fine only if it has one IDSTAGE per idbasket. (idbasket#5)
But how do I get it to return a result for an IDBASKET when it has multiple IDSTAGE? (idbasket#3 & 4)
THANKS MUCH,
MAT
SQL> CREATE OR REPLACE FUNCTION status_desc_sf
2 (p_code NUMBER)
3 RETURN VARCHAR2
4 IS
5 lv_output_txt VARCHAR2(30);
6 BEGIN
7 IF p_code = 1 THEN lv_output_txt := 'Order submitted';
8 ELSIF p_code = 2 THEN lv_output_txt := 'Accepted, sent to shipping';
9 ELSIF p_code = 3 THEN lv_output_txt := 'Backordered';
10 ELSIF p_code = 4 THEN lv_output_txt := 'Cancelled';
11 ELSIF p_code = 5 THEN lv_output_txt := 'Shipped';
12 ELSE lv_output_txt := 'No information';
13 END IF;
14 RETURN lv_output_txt;
15 END;
16 /

Duplicate thread:
How do I get multiple return results from a function

Multiple return values (Bug-ID 4222792)

I had exactly the same request for the same 3 reasons: strong type safety and code correctness verification at compile-time, code readability and ease of mantenance, performance.
Here is what Sun replied to me:
Autoboxing and varargs are provided as part of
JSRs 14 and 201
http://jcp.org/en/jsr/detail?id=14
http://jcp.org/en/jsr/detail?id=201
See also:
http://forum.java.sun.com/forum.jsp?forum=316
http://developer.java.sun.com/developer/earlyAccess/adding_generics/index.html
Multiple return values is covered by Bug-ID 4222792
Typically this is done by returning an array.
http://developer.java.sun.com/developer/bugParade/bugs/4222792.html
That's exactly the problem: we dynamically create instances of array objects that would better fit well within the operand stack without stressing the garbage collector with temporary Array object instances (and with their backing store: 2 separate allocations that need to be recycled when it is clearly a pollution that the operand stack would clean up more efficiently)
If you would like to engage in a discussion with the Java Language developers, the Generics forum would be a better place:
http://forum.java.sun.com/forum.jsp?forum=316
I know that (my report was already refering to the JSR for language extension) Generics is not what I was refering to (even if a generic could handle multiple return values, it would still be an allocated Object
instance to pack them, i.e. just less convenient than using a static class for type safety.
The most common case of multiple return values involve values that have known static datatypes and that should be checked with strong typesafety.
The simple case that involves returning two ints then will require at least two object instances and will not solve the garbage collection overhead.
Using a array of variable objects is exactly similar, except that it requires two instances for the components and one instance for the generic array container. Using extra method parameters with Integer, Byte, ... boxing objects is more efficient, but for now the only practical solution (which causes the least pollution in the VM allocator and garbage collector) is to use a custom class to store the return values in a single instance.
This is not natural, and needlessly complexifies many interfaces.
So to avoid this pollution, some solutions are used such as packing two ints into a long and returning a long, depacking the long after return (not quite clean but still much faster at run-time for methods that need to be used with high frequencies within the application. In some case, the only way to cut down the overhead is to inline methods within the caller code, and this does not help code maintenance by splitting the implementation into small methods (something that C++ can do very easily, both because it supports native types parameters by reference, and because it also supports inline methods).
Finally, suppose we don't want to use tricky code, difficult to maintain, then we'll have to use boxing Object types to allow passing arguments by reference. Shamely boxed native types cannot be allocated on the operand stack as local variables, so we need to instanciate these local variables before call, and we loose the capacity to track the cases where these local variables are not really initialized by an effective call to the method that will assign them. This does not help debugging, and is against the concept of a strongly typed language like Java should be:
Java makes lots of efforts to track uninitialized variables, but has no way to determine if an already instanciated Object instance refered in a local variable has effectively received an effective assignment because only the instanciation is kept. A typical code will then need to be written like this:
Integer a = null;
Integer b = null;
if (some condition) {
//call.method(a, b, 0, 1, "dummy input arg");
// the method is supposed to have assigned a value to a and b,
// but can't if a and b have not been instanciated, so we perform:
call.method(a = new Integer(), b = new Integer(), 0, 1, "dummy input
arg");
// we must suppose that the method has modified (not initialized!)
the value
// of a and b instances.
now.use(a.value(), b.value())
// are we sure here that a and b have received a value????
// the code may be detected at run-time (a null exception)
// or completely undetected (the method() above was called but it
// forgot to assign a value to its referenced objects a and b, in which
// case we are calling in fact: now.use(0, 0); with the default values
// or a and b, assigned when they were instanciated)
Very tricky... Hard to debug. It would be much simpler if we just used:
int a;
int b;
if (some condition) {
(a, b) = call.method(0, 1, "dummy input arg");
now.use(a, b);
The compiler would immediately detect the case where a and b are in fact not always initialized (possible use bere initialization), and the first invoked call.method() would not have to check if its arguments are not null, it would not compile if it forgets to return two values in some code path...
There's no need to provide extra boxing objects in the source as well as at run-time, and there's no stress added to the VM allocator or garbage collector simply because return values are only allocated on the perand stack by the caller, directly instanciated within the callee which MUST (checked at compile-time) create such instances by using the return statement to instanciate them, and the caller now just needs to use directly the variables which were referenced before call (here a and b). Clean and mean. And it allows strong typechecking as well (so this is a real help for programmers.
Note that the signature of the method() above is:
class call {
(int, int) method(int, int, String) { ... }
id est:
class "call", member name "method", member type "(IILjava.lang.string;)II"
This last signature means that the method can only be called by returning the value into a pair of variables of type int, or using the return value as a pair of actual arguments for another method call such as:
call.method(call.method("dummy input arg"), "other dummy input arg")
This is strongly typed and convenient to write and debug and very efficient at run-time...

Can anyone give me some real-world examples where
multiple return values aren't better captured in a
class that logically groups those values? I can of
course give hundreds of examples for why it's better
to capture method arguments as multiple values instead
of as one "logical object", but whenever I've hankered
for multiple return values, I end up rethinking my
strategy and rewriting my code to be better Object
Oriented.I'd personally say you're usually right. There's almost always a O-O way of avoiding the situation.
Sometimes though, you really do just want to return "two ints" from a function. There's no logical object you can think of to put them in. So you end up polluting the namespace:
public class MyUsefulClass {
public TwoInts calculateSomething(int a, int b, int c) {
public static class TwoInts {
    //now, do I use two public int fields here, making it
    //in essence a struct?
   //or do I make my two ints private & final, which
   //requires a constructor & two getters?
//and while I'm at it, is it worth implementing
//equals(), how about hashCode()? clone()?
//readResolve() ?
}The answer to most of the questions for something as simple as "TwoInts" is usually "no: its not worth implementing those methods", but I still have to think about them.
More to the point, the TwoInts class looks so ugly polluting the top level namespace like that, MyUsefulClass.TwoInts is public, that I don't think I've ever actually created that class. I always find some way to avoid it, even if the workaround is just as ugly.
For myself, I'd like to see some simple pass-by-value "Tuple" type. My fear is it'd be abused as a way for lazy programmers to avoid creating objects when they should have a logical type for readability & maintainability.
Anyone who has maintained code where someone has passed in all their arguments as (mutable!) Maps, Collections and/or Arrays and "returned" values by mutating those structures knows what a nightmare it can be. Which I suppose is an argument that cuts both ways: on the one hand you can say: "why add Tuples which would be another easy thing to abuse", on the other: "why not add Tuples, given Arrays and the Collections framework already allow bad programmers to produce unmainable mush. One more feature isn't going to make a difference either way".
Ho hum.

How to get the values returned by a function in a drop down?

Hi All,
Can anyone please help in getting the values returned by a function into a drop down? I have a java class file where in i have written a function called getWeeks() which give all the week dates and i want to display these week dates in a drop down box in a JSP page.
Please help me in this regard.
Thanks in Advance!!
Lakshman.

Hi Lakshman,
the following code can help you do what you want :
<hbj:dropdownListBox id="calendar" tooltip="Calendar" selection="<%= selected %>">
<%
String[] weeks = myObjectBean.getWeeks();
for (int i = 0; i < weeks.length; i++) {
%>
<hbj:listBoxItem key="<%= i %>" value="<%= weeks<i> %>"/>
<%
%>
</hbj: dropdownListBox>
The <%= selected %> snippet allows you to pre-select one of the options (provided that the variable 'selected' is equal to one of the listBoxItem keys).
You can also add onSelect to the tag (e.g. = "setSelectedItem"). It corresponds to a method in the corresponding JSPDynPage class. This means that when you select another item in the dropdown list, the method in your Java class is performed (allowing you to save the selected value and performing actions with it)
I hope this helped you enough,
kind regards,
Frederic
Edited seven times by: Frederic Taes on Nov 5, 2008 11:24 AM -> the onSelect element was in the hbj tag and in the text with "='setSelectedItem'" next to it and when I tried to post my message, I got a 501 error all the time ! Seems like a SDN bug to me ...

Multiple Return Types

haven't been around in a while, so I thought I'd stir up some comments with a suggestion for a new feature in Java, which I'm sure has been suggested at some point, but I can't remember seeing it talked about, so here goes:
Multiple Return Types:
public String, int getStateInfo(String abbrev) {
   if("nj".equalsIgnoreCase(abbrev)) {
      return "New Jersey", 11408042;
   // ... and other states...
   return null, -1;
String name, int population = getStateInfo("nj");
System.out.println("The population of " + name + " is " + population + ".");Yes yes, I know. Create a StateInfo object with the fields needed. Still, I think that could be interesting.

apart from it getting ugly with more than twoparameters
What? How is this ugly? ;-)
public String, int, String, Color, String, String
getStateInfo(String abbrev) {
return name, population, stateFlower, stateColor,
or, stateAnimal, governorsName;
there no indication on what the return valuesrepresent.
Well, I guees the API docs would have to speak for
themselves. Or better method naming... In that
sense, it's no different then now. I could write a
method "getStateName()" and return totally different.
public String, int getStateNameAndPopulation(String
abbrev) {...
I used to like "tuples" when I studied The Tom Programming Language (that's how he calls them), as every CS student is a bit of a "featurist"... Now that I came to develop 40 hours a week and to love Java's simple and powerful expressiveness, I tend to find such constructs overly ugly to be avoided as possible... a matter of personal taste, too, I suppose...

How can I remove iTunes 11 and return to a functional version of iTunes?

So I was really stupid and updated my perfectly operational version of iTunes to version 11. After discovering that version 11 is almost totally non-functional (missing a number of useful functions that someone decided were too helpful I guess), I want to delete this horrid example of software non-functionality and return to the last functional version (iTunes 10). Please tell me there's a way to remove this software wart and return to a functional iTunes.

I found the following way to return to 10.7. I moved the following directories and files to the desktop before I deleted iTunes 11:
Album Artwork (folder)
iTunes Media (folder)
Previous iTunes Libraries (folder)
The following file is found in the Previous iTunes Libraries:
iTunes Library 2012-11-29.itl (the date on your file will vary depending on when you decided to add version 11)
The following are files found in the iTunes directory
iTunes Library Genus.itdb
iTunes Library Extras.itdb
Once you have copied these files to your desktop, you have to remove iTunes 11. I used the uninstall option in CleanMyMac.
I used this explanation to return to iTunes 10.7:
Replace the iTunes 11 application with iTunes 10.7
https://discussions.apple.com/message/20431349
iTunes 10.7 for OS X http://appldnld.apple.com/iTunes10/041-7195.20120912.d3uzQ/iTunes10.7.dmg
You will have to rescue your old iTunes library from your Previous Libraries folder and rename it iTunes Library.itl because a newer version of iTunes irreversibly updates your library file. See:
https://discussions.apple.com/mesage/20401436 - turingtest2 11/2012 post on rebuilding empty/corrupt library after upgrade/crash from previous iTunes library file.
iTunes: How to re-create your iTunes library and playlists - http://support.apple.com/kb/ht1451
Other issues:
https://discussions.apple.com/message/20432309 - solution to mobile devices saying they need to be restored after downgrading
Once you have reinstalled 10.7, put the files and folders you copied to the desktop back into iTunes overwriting the new files that were created during the install. Restart iTunes and you should see iTunes start to reinstall all the missing files. This doesn't seem to recreate the playlists but I can fix that problem myself.
So far, it seems to be working. YMMV and I'm not recommending you try this, I'm just saying that it's worked for me.

[SOLVED] How to use return parameter of function as paramter of table?

Hi all,
As continue of post "ADF Faces: how to execute pl/sql function when page is loaded." I came up with an other problem where I can't find an easy solution for.
The problem is easy.
1) I execute a procedure, this returns a value
2) I have a table which needs one input parameter
3) How can I bind the return value of the procedure to the input paramter of the table:
A simple example:
1) I created a pl/sql function that returns 1
CREATE FUNCTION zz_return_1
is
RETURN NUMBER
BEGIN
RETURN 1
end;2) I exposed the function in my TestModule so I can use it on a jps page.
3) I created a table TEST_PARAM_1_TABLE with two columns: a, b
4) I created a view read-only object with one paramter
SELECT a,b
FROM zz_scn_test_tab
where a = :var_15) I added the view object to a jps page as tabe > adf read-only
6) I added a methodAction and invokeAction to execute the function on page load
<executables>
      <iterator id="zzscntest1Iterator" RangeSize="10" Binds="zzscntest1"
                DataControl="TestModuleDataControl"/>
            <invokeAction id="runProc" Binds="ftn_return_1"/>
      </executables>
<bindings>
      <methodAction id="ftn_return_1"
                    InstanceName="TestModuleDataControl.dataProvider"
                    DataControl="TestModuleDataControl"
                    MethodName="ftn_return_1" RequiresUpdateModel="true"
                    Action="999" IsViewObjectMethod="false"
                    ReturnName="TestModuleDataControl.methodResults.TestModuleDataControl_dataProvider_ftn_return_1_result"/>
      <table id="zzscntest1" IterBinding="zzscntest1Iterator">
          <AttrNames>
              <Item Value="A"/>
              <Item Value="B"/>
          </AttrNames>
      </table>
</bindings>how can I bind the return value of the function to the var_1 variable of the table?
Additional to this: Is there a way to store the return value in a managed bean?
for example: if I create a managed bean:
public class globalVars {
    private Number ftnReturnValue;
    public globalVars() {
    public void setFtnReturnValue(Number ftnReturnValue) {
        System.out.println("return value is set to: " + ftnReturnValue);
        this.ftnReturnValue = ftnReturnValue;
    public Number getFtnReturnValue() {
        return ftnReturnValue;
}how to store the return value in this ftnReturnValue variable?

Thanks to Frank,
I finally got it to work!
For those with the same problem, this is what I did:
- I created a VO material_details with one parameter :sequence_num
- I created a master/detail viewlink from my materials list to the materials_details
- In the application module, I created a call to the procedure, and within this procedure, I set the sequence_num variable.
    public Number f_ltf3_adf_syf_init(String reporting_group
                                     , String username
                                     , String RAG_code
                                     , String ABC_class
                                     , String SBU_code){
       CallableStatement st = null;
       String stmt = "M_LTF3_SFM_CALC.f_ltf3_adf_syf_init('"+ reporting_group
                                                       +"','"+ username
                                                       +"','"+ RAG_code
                                                       +"','"+ ABC_class
                                                       +"','"+ SBU_code+"')";
       try {
           // prepare the statement
           st = getDBTransaction().createCallableStatement("begin ? := "+stmt+";end;",0);
           st.registerOutParameter(1,2); // register output parameter as Number
           //execute the statement
           st.executeUpdate();
           //set paramter in detail VO of master/view
           getLtfSyfRevDetails1().setNamedWhereClauseParam("session_seq", (Number)st.getObject(1));
           return (Number)st.getObject(1);
       }catch (Exception e){e.printStackTrace();}
       return null;
    }

Multiple call of update function module

Hi Everybody,
I have made implementation to the definition MB_DOCUMENT_BADI( material Document creation).
While executing this BADI I am getting short dum with this error Multiple call of update function module.
Here is the short dump--
In the FORM routine Buchen_Ausfuehren (program SAPMM07M), an error
message was issued by a Business Add-In (BAdI) or function module.
This is not permitted, because it could lead to data
inconsistencies. For this reason, the update of the material
document was also terminated with a termination message (dump).
Note that this message (M7 372) is not the responsible error
message.
Please any body suggest the way forward.
Regards,
Sandeep.

Hi Kiran,
Thanks for the reply.
I have created one implementation to the BADI MB_DOCUMENT_BADI. This badi will hit while creation of material document.I have write the code in method MB_DOCUMENT_BEFORE_UPDATE such that it will act only for certain movement types specially for t-codeMb1a and MB31.
What problem I am facing i have used a error message "MB_DOCUMENT_BEFORE_UPDATE" in this method.If we got the erroe message then we dont need to post the material dcoument,but here problem is that if the material document could not posted then it corrupt the material and when we performing 261/101 we got error message like " Inconsistency between MM and ML for material and plant"
I have used following things like-
1-while updating the customized table using " Commit Work".
2-Call function vb_change_batch for updating the batch and not in update task.
3. Dequeue the table after updating the table.
Will thos things can create any inconsistency to the MM and ML.
Please suggest me uor thoughts.
Thanks
sandeep.
Thanks ,
sandeep.

Flex services with multiple return types

Hello,
We are creating a webapplication with flex and php.
Everything is working very good, until we got to the library part of the application.
Every service so far had only 1 return type (eg: User, Group, ...)
Now for the library we want to return a ArrayCollection of different types of objects. To be more specific the LibraryService should return a ArrayCollection containing Folder and File objects.
But how to configure this in Flex (Flash Builder 4 (standard))?
So far it converts every object to the type Object, i would really like it to be Folder or File
The only solution we can think of right now is to create a new object Library that will contain 2 ArrayCollections, one of type Folder and one of type File. This could work ofcourse, but I wonder if there is a better solution for this OR that i can configure multiple return types for a service.
Any ideas/advice is greatly appreciated.

Normally if you are using Blazeds(Java stuff, i'm sure there should be something similar for php), you can map java objects to that of the AS objects, when you get the data back you are actually seeing the object which is a Folder or a File object rather than just a Object.

One script to make multiple cells call one function or vice versa

Please help.
I need one script to make multiple cells reference one function or one cell reference multiple functions.
Goal: On the enter event of cell c1, I want to make cells (this, Header.c1, Example.c1, rLabel) highlighted, and this would be for every other cell that is entered into, their corresponding column header and row header will be highlighted.
I've tried combining cells: eg
colourControls.hdfieldLoseFocus(this, HeaderRow.c1, Example.c1, rLabel);
and I've also tried combining some scripts in the function:
fieldObj.ui.oneOfChild.border.fill.color.value = "255,255,200";
HeaderRow.fieldObj.ui.oneOfChild.border.fill.color.value = "255,255,200";
ExampleRow.fieldObj.ui.oneOfChild.border.fill.color.value = "255,255,200";
But they dont work. See the link to my form.
http://www.winstonanddavid.com/example.com
I tried testing the function with the cell 'c1' but it doesnt work.
Also, I want to get rid of the multiple lines of script in every other cell.
How can I do this?

I played around with the ExtendScript Toolkit and cutted and pasted the previous script from here until I managed to get a script that actually works like I was thinking. I then added a code from the CS4 Reference Manual to move Layer1 to the top (just to see if it worked).
I have no idea yet if the the code includes something that does not belong, but at least I get no errors. The current code is like this now:
//Apply to myDoc the active document
var layerName = LayerOrderType;
var myDoc = app.activeDocument;
//define first character and how many layers do you need
var layerName
var numberOfLayers=0;
//Create the layers
for(var i=0; i<=numberOfLayers; i++)
{ var layerName = "Background"; var myLayer = myDoc.layers.add(); myLayer.name = layerName; }
{ var layerName = "Picture"; var myLayer = myDoc.layers.add(); myLayer.name = layerName; }
{ var layerName = "Text"; var myLayer = myDoc.layers.add(); myLayer.name = layerName; }
{ var layerName = "Guides"; var myLayer = myDoc.layers.add(); myLayer.name = layerName; }
// Moves the bottom layer to become the topmost layer
if (documents.length > 0) {
countOfLayers = activeDocument.layers.length;
if (countOfLayers > 1) {
bottomLayer = activeDocument.layers[countOfLayers-1];
bottomLayer.zOrder(ZOrderMethod.BRINGTOFRONT);
else {
alert("The active document only has only 1 layer")

Advice on Multiple Returns and Unanchored Frames

Hello everyone--
I'm hoping to get some guidance on how to approach a problem I'm facing. I have been tasked with updating a series of documents totalling around 5,000 pages to incorporate our new corporate fonts and colors. The new fonts are slightly larger than the fonts used in those documents. Upon review of the documents, my heart fell as I saw how the indd files were initially built.
Here are the lovely challenges:
The original designers didn't anchor a single image in any of the documents.
They rarely used text wrap; instead they would use carriage returns and baseline shifts to create the spacing they wanted.
Some of the documents have threaded stories that run 60-70 frames long.
I was hoping to update the paragraph styles and adjust the layouts as needed based on text flow. (These are training manuals). Nonetheless, as you can imagine, this causes the document to get messy really quick, as text flows to other pages while the associated graphics stay in their original location.
Due to the number of documents I need to update, some sort of automated solution would be great. Ideally, I would be able to anchor graphics to the text and remove the extraneous returns so that when the paragraph styles are updated, I can at least maintain the integrity of the content as i work through the other aspects of the layout that I need to update.
Some ideas:
Is there maybe a way to see if there is a graphic in the same general location as the multiple returns? Maybe using the some calculation of the offset properties on the first and last return, and then comparing it with the bounds of any graphics on the page?
I'm also thinking of splitting the stories and updating each page's styles separately, but the document contains a lot of numbered lists. Splitting the stories would mean I'd need to figure out how to keep all of those lists in the right numbering scheme.
I'm not asking for anyone to script this for me. (first of all these may be dumb ideas). Rather, I would love advice on how to go about scripting something like this (or if it is even possible). If faced with these challenges, how would you approach them?
Thank you in advance for your time and effort!

as per my view u have to create tree diffrent tables, because if tree diff. table then multi join can be done

Exception in Holder for Multiple Return Types

Hi,
I am implementing multiple return types as mentioned at url: -
http://e-docs.bea.com/wls/docs70/webserv/implement.html#1058020
I have a "Ticket" object and its holder "TicketHolder".
I have built the service successfully which has the following method with its
built files: -
public String serviceMethod(String arg,TicketHolder out) {
Ticket tc = new Ticket();
tc.setticketId("001");
out = new TicketHolder();
out.value = tc;
System.out.println("got it man");
return arg;
But when i try to invoke this method from its "http://localhost:8088/WebServices/RegisterTickets"
link (note - RegisterTickets is the service name here), it gives me the following
exception at server side as well as client side: -
javax.xml.rpc.JAXRPCException: Failed to invoke the target:test.MyService@630693
operation name:serviceMethod method:public java.lang.String test.MyService.serviceMethod(java.lang.String,test.TicketHolder)
args:[Ljava.lang.Object;@3d51e3arg.length:2 Due to exception:java.lang.IllegalArgumentException:
argument type mismatch
                           at weblogic.webservice.component.javaclass.JavaClassInvocationHandler.invoke(JavaClassInvocationHandler.java:97)
                                               at weblogic.webservice.core.handler.InvokeHandler.handleRequest(InvokeHandler.java:78)
                                                                         at weblogic.webservice.core.HandlerChain.handleRequest(HandlerChain.java:131)
    at weblogic.webservice.core.DefaultOperation.process(DefaultOperation.java:539)
at weblogic.webservice.core.DefaultWebService.invoke(DefaultWebService.java:264)
Can someone help me in resolving this exception?
Any help would be appreciated...
thanks in advance,
Rajesh


apart from it getting ugly with more than twoparameters
What? How is this ugly? ;-)
public String, int, String, Color, String, String
getStateInfo(String abbrev) {
return name, population, stateFlower, stateColor,
or, stateAnimal, governorsName;
there no indication on what the return valuesrepresent.
Well, I guees the API docs would have to speak for
themselves. Or better method naming... In that
sense, it's no different then now. I could write a
method "getStateName()" and return totally different.
public String, int getStateNameAndPopulation(String
abbrev) {...
I used to like "tuples" when I studied The Tom Programming Language (that's how he calls them), as every CS student is a bit of a "featurist"... Now that I came to develop 40 hours a week and to love Java's simple and powerful expressiveness, I tend to find such constructs overly ugly to be avoided as possible... a matter of personal taste, too, I suppose...

Return multiple values from a function to a SELECT statement

I hope I've provided enough information here. If not, just let me know what I'm missing.
I am creating a view that will combine information from a few tables. Most of it is fairly straightforward, but there are a couple of columns in the view that I need to get by running a function within a package. Even this is fairly straightforward (I have a function named action_date in a package called rp, for instance, which I can use to return the date I need via SELECT rp.action_date(sequence_number).
Here's the issue: I actually need to return several bits of information from the same record (not just action_date, but also action_office, action_value, etc.) - a join of the tables won't work here as I'll explain below. I can, of course, run a separate function for each statement but that is obviously inefficient. Within the confines of the view select statement however, I'm not sure how to return each of the values I need.
For instance, right now, I have:
Table1:
sequence_number NUMBER(10),
name VARCHAR(30),
Table2:
Table1_seq NUMBER(10),
action_seq NUMBER(10),
action_date DATE,
action_office VARCHAR(3),
action_value VARCHAR(60),
I can't simply join Table1 and Table2 because I have to do some processing in order to determine which of the matching returned rows I actually need to select. So the package opens a cursor and processes each row until it finds the one that I need.
The following works but is inefficient since all of the calls to the package will return columns from the same record. I just don't know how to return all the values I need into the SELECT statement.
CREATE VIEW all_this_stuff AS
SELECT sequence_number, name,
rp.action_date(sequence_number) action_date,
rp.action_office(sequence_number) action_office,
rp.action_value(sequence_number) action_value
FROM table1
Is there a way to return multiple values into my SELECT statement or am I going about this all wrong?
Any suggestions?
Thanks so much!

Hi,
What you want is a Top-N Query , which you can do using the analytic ROW_NUMBER function in a sub-query, like this:
WITH     got_rnum     AS
     SELECT     action_seq, action_dt, action_office, action_type, action_value
     ,     ROW_NUMBER () OVER ( ORDER BY action_date
                               ,            action_seq
                         ,            action_serial
                       ) AS rnum
     FROM     table2
     WHERE     action_code     = 'AB'
     AND     action_office     LIKE 'E'     -- Is this right?
SELECT     action_seq, action_dt, action_office, action_type, action_value
FROM     got_rnum
WHERE     rnum     = 1
;As written, this will return (at most) one row.
I suspect you'll really want to get one row for each group , where a group is defined by some value in a table to which you're joining.
In that case, add a PARTITION BY clause to the ROW_NUMBER function.
If you'd post a little sample data (CREATE TABLE and INSERT statements), I could show you exactly how.
Since I don't have your tables, I'll show you using tables in the scott schema.
Here's a view that has data from the scott.dept table and also from scott.emp, but only for the most senior employee in each department (that is, the employee with the earliest hiredate). If there happens to be a tie for the earliest hiredate, then the contender with the lowest empno is chosen.
CREATE OR REPLACE VIEW     senior_emp
AS
WITH     got_rnum     AS
     SELECT     d.deptno
     ,     d.dname
     ,     e.empno
     ,     e.ename
     ,     e.hiredate
     ,     ROW_NUMBER () OVER ( PARTITION BY d.deptno
                               ORDER BY         e.hiredate
                         ,                e.empno
                       ) AS rnum
     FROM     scott.dept     d
     JOIN     scott.emp     e     ON     d.deptno     = e.deptno
SELECT     deptno
,     dname
,     empno
,     ename
,     hiredate
FROM     got_rnum
WHERE     rnum     = 1
SELECT     *
FROM     senior_emp
;Output:
.    DEPTNO DNAME               EMPNO ENAME      HIREDATE
        10 ACCOUNTING           7782 CLARK      09-JUN-81
        20 RESEARCH             7369 SMITH      17-DEC-80
        30 SALES                7499 ALLEN      20-FEB-81
By the way, one of the conditions in the query you posted was
action_office     LIKE 'E'which is equivalent to
action_office     = 'E'(LIKE is always equivalent to = if the string after LIKE doesn't contain any wildcards.)
Did you mean to say that, or did you mean something like this:
action_office     LIKE 'E%'instead?

Returning multiple values from a function

Hello everyone,
I am pretty new to actionscript and flex and one thing i am not entirly sure it is done is how to get the value in actionscript when returning multple values.
for example i have the following function:
public function sayhello():string
     var hello:String="hello World";
     return hello
var myvalue:String=sayhello();
trace(myvalue);
How do go about getting the values of two returns:
public function sayhello():string
     var strhello:String="hello";
      var strWorld:String="World";
     return strhello,strWorld;
var myvalue1:String=?????
var myvalue2:String=???

To solve this problem you must use a object for storing complex return value.
You can do it using inline anonymous object:
public function sayhello():Object
     return {strHello: "hello";strWorld: "World"}
and accesing result as:
var obj:Object = sayhello();
var strHello:String = obj.strHello;
You may also create a custom class
class HelloWorldResult{
     public var strHello:String;
     public var strWorld:String;
and return a new instance of this class from your method:
public function sayhello():HelloWorldResult
     var hwr:HelloWorldResult = new HelloWorldResult();
     hwr.strHello = "Hello";
     hwr.strWorld = "World";
     return hwr;

Using lookup function but to show multiple returns?

Okay so I have been talked through how to use a lookup function to show which student in my class has scored the highest grade. The formula used displays there name in one column and the score they achieved in another column which I have set up in a small seperate table. However as suggested in my intial lookup function search it was suggested that I would encounter a problem if two students both achieved the same highest score. However in the results table I have created it only shows one student. Is it possible to have a function or formula that will simply show the top scores and the students that scored it when they are tied?
Thanks
Marcus

The easiest way to accomplish this, Marcus, is by simply sorting all rows by grade. Sure, you can click on the column tab and hit "sort ascending", but I'm guessing you want something a little more dynamic than that.
So I've set up a class of 20 students and gave them all random grades btwn 40 - 99. (That's how it was done when I was in high school. ) I added a third column which takes that grade, multiplies it by 1000, and adds the row number of the student. This creates a unique identifier based on a possibly-non-unique grade:
Now it's simply a matter of using the LARGE function to rank these new identifiers, and then using LOOKUP to get the actual grade and name for that identifier. (Note that the grades changed; changing the focus from one cell to another creates new random values for the grades.)
The formula for columns b and c for this Ranking table are standard Lookup functions:
=LOOKUP($A1,Grades :: $C,Grades :: $B) to get the grades ($A2 for 2nd column, etc.), and
=LOOKUP($A1,Grades :: $C,Grades :: $A) to get the names.
I'd suggest hiding these identifier columns.
Now, to limit this display to the "X" highest grades, I'm going to continue this into another reply.
Vince

Multiple returns in a function

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