Optional Parameter without a value

Hi, I'm using Discoverer 10g.
Somebody knows what is passed when an optional parameter (a parameter which doesn't require a user to enter a value) is left without a value ?
I didn't understand actually if is passed NULL, 'NULL', '',' '...
I need to know it because I need to wrap this "value" in order to pass it to a function on the DB.
The user have to be the possibility to write something or leave it without a value.
Thanks
Alessandro

Hi,
While running the Discoverer Report, just leave the parameter as blank.
Discoverer passes it as NULL to execute the query.
In the function, where you are passing this parameter, use NVL() to defualt the NULL value. If you want to pass "this value" manually into function, you can still leave it as blank and NVL will take care of it.
Hope this helps!
Yogini

Similar Messages

OPTIONAL PARAMETER WITH NO VALUE SELECTED

I have an optional parameter and I want to place the selected value in the Page Header. Since the selected value is a number, I want to give it a name. The problem I am having is when I don't select a value, my naming forumula doesn't work. I tried the HasValue function, but I don't think I'm using it properly.
// This did not work
IF {?SUPPLIER}= 10001 THEN "NESTLE PRODUCTS ONLY" ELSE
IF {?SUPPLIER}= 10005 THEN "UNILEVER PRODUCTS ONLY" ELSE
"ALL PRODUCTS"
// This did not work
If (not hasvalue){?SUPPLIER} then "ALL PRODUCTS" ELSE
IF {?SUPPLIER}= 10001 THEN "NESTLE PRODUCTS ONLY" ELSE
IF {?SUPPLIER}= 10005 THEN "UNILEVER PRODUCTS ONLY" ELSE
"NESTLE AND UNILEVER PRODUCTS ONLY"
Got any suggestions?

Hi,
Well if you select multiple values in a parameter and drag the parameter or the formula containing the parameter, then it would always display the first selected value.
Here's a dirty way:
If NOT(HasValue({?SUPPLIER})) then "ALL PRODUCTS" ELSE IF
ubound({?SUPPLIER}) = 1 then
        IF {?SUPPLIER}= 10001 THEN "NESTLE PRODUCTS ONLY" ELSE
        IF {?SUPPLIER}= 10005 THEN "UNILEVER PRODUCTS ONLY" ELSE
        "NESTLE AND UNILEVER PRODUCTS ONLY"
ELSE IF
ubound({?SUPPLIER}) = 2 then
"NESTLE AND UNILEVER PRODUCTS ONLY"
Let me know how this goes!
-Abhilash

Missing Parameter Values CR2008 Optional Parameter

Hi,
I am getting "Missing Parameter Values" error
"CrystalDecisions.CrystalReports.Engine.ParameterFieldCurrentValueException: Fehlende Parameterwerte. ---> System.Runtime.InteropServices.COMException (0x8004100E)"
if I try to export a Report with an optional Parameter without setting the parametervalue.
The Report works fine with ReportViewer.
If I uncomment the "Parameterpart" and set a parametervalue it works fine, but it should works without a parametervalue too, its optional.
I have tried many for a long time and read many Websites but it does not work !
I use WinXP SP2 CR2008 with C# .NET 2.0 VS2005
CrystalDecisions.CrystalReports.Engine.dll version 12.0.2000.683 Date: 2008-03-01
CrystalDecisions.Shared.dll version 12.0.2000.683 Date: 2008-03-01
Sorry my English is very Bad !
Thanks a lot!
ExportFormatType ExportType = ExportFormatType.PortableDocFormat;
            ReportDocument RD = new ReportDocument();
            RD.Load("C:\\ParaTest01.rpt");
            string strServer = "<ServerName>";
            string strDB = "<DBName>";
            string strUser = "<UserID>";
            string strPW = "<PW>";
            RD.SetDatabaseLogon(strUser, strPW, strServer, strDB);
            //ParameterFieldDefinitions crParameterFieldDefinitions = RD.DataDefinition.ParameterFields;
            //ParameterFieldDefinition crParameter1 = crParameterFieldDefinitions[0];
            //ParameterValues crParameter1Values = crParameter1.CurrentValues;
            //ParameterDiscreteValue crDiscrete1Value = new ParameterDiscreteValue();
            //crDiscrete1Value.Value = "GER";
            //crParameter1Values.Add(crDiscrete1Value);
            //crParameter1.ApplyCurrentValues(crParameter1Values);
            RD.ExportToDisk(ExportType, "C:\\Test2.pdf");
RecordSelectionFormula in Report:
(not HasValue({?Land}) OR {tab.location_code} = {?Land}) and
{tab.sup} = "XXX" and
{tab.Accounting_Period} = "200801"

You need to be careful when using optional parameters. If you are using the optional parameter in a record selection formula you'll need to check and make sure it has a value before you use it. There is a function call HasValue() that you can use to do this.
If you have an optional parameter in the record selection formula and you don't pass a value you'll need to make sure your selection formula can be completed with out it.
This is an excerpt from our help file.
Crystal Reports supports optional parameters. An optional parameter is a prompted value that does not have to be supplied by the user.
Report designers should provide some guidance to the end user that a parameter is optional by adding this information to the prompt text.
Optional parameters are treated by Crystal Reports as optional anywhere within the report that they are used. You cannot set one instance of the parameter to optional and another to mandatory.
Note: After you set a parameter to optional, if you use the Select Expert, the system will automatically add the selection formula for you using the HasValue() function.
The Formula Workshop Editor does not automatically add the formula. Only the Select Expert automatically adds the formula for you.
If you change the parameter from optional to mandatory, the HasValue() function is not automatically removed from your formula.
Handling a parameter with no value
When the report engine evaluates any formula which references an optional parameter that does not have a value, it generates a runtime error. All formulas that reference an optional parameter should first use the HasValue() function to check if that parameter has a value before evaluating it. This includes record selection formulas and saved data formulas.
Note: The system will not automatically drop a statement from the SQL WHERE clause. It is the report designeru2019s responsibility to decide which statement to leave out based on HasValue() testing.

Crystal reports 2008 Set optional parameter value

Hi,
I'm working with .net Visual Studio 2008 C# and Crystal reports 2008 (Crystal.Decisions) and when I try to set a parameter to optional and set its value to no value, it returns the error: "Invalid parameter name", here is my code:
foreach (CrystalDecisions.Shared.ParameterField param in Report.ParameterFields)
                        if (!param.HasCurrentValue &&
                            !Report.DataDefinition.ParameterFields[param.Name].IsLinked())
                            switch (param.ParameterValueType)
                                case ParameterValueKind.NumberParameter:
                                    param.IsOptionalPrompt = true;
                                    param.CurrentValues.IsNoValue = true;
                                    break;
I'm doing this because some of the parameters can be left null, and in this case I don't want to show the parameter prompt.
In past versions of Crystal (such as Crystal Reports 11.5) we had the chance to left the parameter value null and did not showed the parameter prompt dialog, and this behavior repeats in a lot of reports.
thanks in advanced

Please don't post the same question more than once. This is a public forum so be patient.
Install SP4 and test again.
Try these samples:
http://wiki.sdn.sap.com/wiki/display/BOBJ/CrystalReportsSDKSampleApplications
Don

Optional parameter, no values

Hi,
I have an optional parameter in CR2008; I would like to print the choosen parameter values into the report header. This works great by using this function:
Join({?MyParameter},", ")
However, when no values were selected I get the error message "Parameter has no value".
So I adapted the function:
if hasvalue({?MyParameter}) then Join({?MyParameter},", ") else "All records"
The function is correct but I still get the error message (error dialog window).
How can I suppress the error message?
Thanks!

Ian,
Tip of the day: You can show the <> signs in the forum by using & lt; and & gt;. Just remove the spaces after the &.
It also works in code blocks...
{@Field} <> 123
Jason

How to create an optional parameter in ssrs report

I have a report where I want to give the report user the option of entering a phone number as a filter if they want to pull data only for a particular phone number or pull the report without entering a phone number as a parameter, thus disregarding
the use of the filter. I have parameter for the phone number that shows as a text box where the report user can enter the number then click to run the report. A filter on the data set that uses the phone number parameter as the
value. It works fine when I enter a phone number (it returns the row associated with the phone number entered. However when I do not enter a phone number, no rows are returned. How can I get all rows to be retuned when
I do not enter a value for the parameter?
M Collier

Hello,
Did you specify the DefaultValue or ValidValue of the parameter 'parameter name1' by get values from another parameter or itself?
If there is another parameter or
cascading parameters , the error may caused by the order of parameters. When preview report, the order of the parameters in the Report Data pane determines the order in which the parameter queries appear in the report. Please verify the order
of the cascading parameters.
Whats's more, please also check the parameters name and the acceptable values of the parameters.
Regards,
Fanny Liu
Fanny Liu
TechNet Community Support

Populating select-option, parameter simultaneously

Hi All,
I have a select option and a parameter on the selection screen. The parameter is disabled for input and enabled for output. The F4 for the the select option has a numeric value and a corresponding text (comes from a standard function module). When I select a value from F4, the numeric value should go to the select-option and the text should go to the input disabled parameter.
At the moment, I am having to press an enter after choosing F4, for the text to reflect in the parameter field. I need both of them displayed at the same time, without having to press an enter.
Please guide me about how I could achieve this.
Thanks and Regards,
Vidya.

use this code in your F4 Help of Select Option after F4 Help Function Module .
DATA SCR_FIELDS LIKE DYNPREAD   OCCURS 0 WITH HEADER LINE.
SCR_FIELDS-FIELDNAME = ur parameter Name.
SCR_FIELDS-FIELDVALUE = ur parameter value(ur Text Field)
APPEND SCR_FIELDS.
CALL FUNCTION 'DYNP_VALUES_UPDATE'
    EXPORTING
      DYNAME               = PROG_name
      DYNUMB               = SY-DYNNR
    TABLES
      DYNPFIELDS           = SCR_FIELDS
    EXCEPTIONS
      INVALID_ABAPWORKAREA = 1
      INVALID_DYNPROFIELD = 2
      INVALID_DYNPRONAME   = 3
      INVALID_DYNPRONUMMER = 4
      INVALID_REQUEST      = 5
      NO_FIELDDESCRIPTION = 6
      UNDEFIND_ERROR       = 7
      OTHERS               = 8.
So you need not have to press Enter
Regards,
Alpesh
Edited by: Alpesh on Mar 14, 2009 11:44 AM

How to get a parameter without name in JSP?

hi everyone, My question is how to get a parameter without name in JSP? I have two pages, 1.html and 2.jsp.
in 1.html, I embeds some Javascript codes in HTML contents like below ( changed < to ( , > to )):
function toSubWin( obj )
window.open('test.jsp?'+obj.firstChild.toString(),'sw');
(a onClick='toSubWin(this)'style="background:green")focus(/a)
How can I get the parameter in 2.jsp?
THANK YOU IN ADVANCE!!

Does obj.firstChild.toString() evaluate to a "name=value" type of String ?
Or better what does obj.firstChild.toString(),'sw' evaluate to ? It has to end up in a name=value format, else its just gibberish appended to the url.
In the jsp, you have to obviously know the name to get the parameter. There's a getParameterNames() method which returns you a Collection of parameter names as Strings, you could probably use that to retrieve the param values.
Then there's a getParameterMap() method which returns an immutable Map containing parameter names as keys and parameter values as map values. The keys in the parameter map are of type String. The values in the parameter map are of type String array.
However to what ends you employ them in a program which doesnt know its inputs is a different story.
cheers,
ram.

CR 2008 - Optional parameter prompts

Hi!
I sometimes use Optional parameter prompts in Crystal Reports 2008.
The main reason is to minimise user input in Selection Criteria Screen.
I have many subreports, and not all prompts are needed for all subreports.
If the user leaves the prompt blank, then a formula will set a default value for the user.
I usually put the optional prompt at the top, so that user needs only fill prompts at the bottom.
Here is an example:
I have a parameter field called "PreferredSortOrder"
The Edit screen reads as follows:
Type: String
List of Values: Static
Value:
    Original Order
    Description
Value Options:
Show on (Viewer) Panel           : Read Only
Prompt Text                              : Preferred Sort Order [Optional]
Prompt With Description Only : True
Optional Prompt                        : True
Default Value                             :
Allow custom values                 : False
Allow multiple values                 : False
Allow discrete values                 : True
Allow range values                     : False
Min Length                                  :
Max Length                                  :
Edit Mask                                   :
Show value or Description        : Show Value
My report works perfectly, even if I leave the parameter field blank
I now add another parameter field called "WhichWarehouse"
with exactly the same values as above.
When I run the Crystal Report, I get this message;
Error running Crystal Reports
The report runs only if I type a value in the "WhichWarehouse" prompt
(The "PreferredSortOrder" prompt remains blank)
I did exactly the same as before. Why does the 2nd optional parameter not work like the first?
What has gone wrong?
Thank you
Leon Lai
JUST ADDED
I just noticed that in the Field Explorer,
(a) There is a green TICK near the parameter PreferredSortOrder
(b) But no green Tick neat the parameter "WhichWarehouse"
What does the green tick mean?
Could this be the key to the mystery?

Hi Leon,
No green tick means that the prompt has Not been used in the report.
If the report has Subreports, and if the subreport also has a 'warehouse' prompt then it could be this prompt that is causing the issue. You should link both the warehouse prompts to make sure you're only prompted once.
-Abhilash

Optional Parameter in ODSI

Hi,
I have to create a Optional Parameter in ODSI function as given following :
xquery version "1.0" encoding "UTF-8";
(::pragma xds <x:xds targetType="urn:AddressInfo" xmlns:x="urn:annotations.ld.bea.com" xmlns:urn="http://www.wcbsask.com/employeerCoverage/AddressInfo"><creationDate>2010-10-15T15:19:40</creationDate><userDefinedView/></x:xds> ::)
declare namespace wbt= "ld:Physical/CBC";
import schema namespace ns1="http://www.abc.com/employeerCoverage/AddressInfo" at "ld:Logical/AddressInfo/schemas/AddressInfo.xsd";
declare namespace tns="ld:Logical/AddressInfo/SampleOptional";
(::pragma function <f:function kind="read" visibility="public" isPrimary="true" xmlns:f="urn:annotations.ld.bea.com"/>::)
declare function tns:getSampleOptional($formNum as xs:string,$optinalInput as xs:integer?) as element(ns1:AddressInfo)?{
for $cbc in wbt:CBC()
where $formNum eq $cbc/FORM_NUM
return
<ns1:AddressInfo>
if(exists($optinalInput))then
<ns1:regNum>{fn:data($CBC/FORM_NUM)}</ns1:regNum>
else(
<ns1:cusNumber>{fn:data($optinalInput)}</ns1:cusNumber>
</ns1:AddressInfo>
when i am passing the form number as some value and OptionalInput as null(since the parameter is optional). I am getting error as
com.bea.dsp.das.exception.DASException: weblogic.xml.query.exceptions.XQueryDynamicException: {err}XP0021: "": can not cast to {http://www.w3.org/2001/XMLSchema}integer: error: decimal: Invalid decimal value: expected at least one digit
     at com.bea.dsp.das.ejb.EJBClient.invokeOperation(EJBClient.java:160)
     at com.bea.dsp.das.DataAccessServiceImpl.invokeOperation(DataAccessServiceImpl.java:171)
     at com.bea.dsp.das.DataAccessServiceImpl.invoke(DataAccessServiceImpl.java:122)
     at com.bea.dsp.ide.xquery.views.test.QueryExecutor.invokeFunctionOrProcedure(QueryExecutor.java:113)
     at com.bea.dsp.ide.xquery.views.test.XQueryTestViewContent.getFunctionExecutionResult(XQueryTestView.java:1041)
     at com.bea.dsp.ide.xquery.views.test.XQueryTestViewContent.executeFunction(XQueryTestView.java:1176)
     at com.bea.dsp.ide.xquery.views.test.XQueryTestViewContent.widgetSelectedImpl(XQueryTestView.java:1866)
     at com.bea.dsp.ide.xquery.views.test.XQueryTestViewContent.access$300(XQueryTestView.java:174)
     at com.bea.dsp.ide.xquery.views.test.XQueryTestViewContent$3.run(XQueryTestView.java:1594)
     at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:67)
     at com.bea.dsp.ide.xquery.views.test.XQueryTestViewContent.widgetSelectedBusy(XQueryTestView.java:1597)
     at com.bea.dsp.ide.xquery.views.test.XQueryTestViewContent.widgetSelected(XQueryTestView.java:1560)
     at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:227)
     at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
     at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:938)
     at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3687)
     at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3298)
     at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2389)
     at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2353)
     at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2219)
     at org.eclipse.ui.internal.Workbench$4.run(Workbench.java:466)
     at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:289)
     at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:461)
     at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
     at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:106)
     at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:169)
     at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:106)
     at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:76)
     at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:363)
     at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:176)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:597)
     at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:508)
     at org.eclipse.equinox.launcher.Main.basicRun(Main.java:447)
     at org.eclipse.equinox.launcher.Main.run(Main.java:1173)
     at org.eclipse.equinox.launcher.Main.eclipse_main(Main.java:1148)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:597)
     at com.m7.installer.util.NitroxMain$1.run(NitroxMain.java:33)
     at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:199)
     at java.awt.EventQueue.dispatchEvent(EventQueue.java:597)
     at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)
     at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)
     at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)
Kindly help in the issue.
Regards,
Tara

"when i am passing ... and OptionalInput as null"
What does that mean exactly? From the exception, it looks like you are just leaving the text box blank. For 'null' you have to check the 'null' check-box beside it.

How to set no_value to Optional parameter in XI 3.0 by OpenDoc URL linking

I found in "BusinessObjects XI 3.0 Viewing reports and documents using URLs Howto.doc"
"You can remove an optional parameter from the prompt by setting it to no_value in the OpenDocument query string."
I tested: response.sendRedirect("/OpenDocument/opendoc/openDocument.jsp?sIDType=CUID&iDocID=AaVxpKuKNBxKnHUJCqwuRi0&lsSCountry=""no_value""&token=" + logonToken);
But it will filter no data, because no country call "no_value". I still need to delete the value, and click Apply, to get all data.
I wonder how to achieve optional parameter via opendocument linking, to get a report with "full data set".
Any one can help?
Thanks in advance!
Jennie

Hi Jennie,
I'm wondering if "1203675 - Cannot specify an empty string for an optional string parameter through the refresh prompts page which displays "no value" unlike the parameter panel" is related to this.
Instead of using no value or empty string, how about if you use ALL value for the parameter to bring full data? Check "1218621 - Option "All" in list of values for a dynamic prompt in XI"
Hitomi

Optional Parameter - Oracle Package Throws an Error

Hi there,
I have an Oracle Package & it has a stored procedure with optional parameter. The calling code is in ColdFusion.
When I run my webpage the Oracle throws below error.
" [Macromedia][Oracle JDBC Driver][Oracle]ORA-06550: line 1, column 7: PLS-00306: wrong number or types of arguments in call to 'GET_CONTRACT_BY_DYN_SQL' ORA-06550: line 1, column 7: PL/SQL: Statement ignored "
Calling Code (ColdFusion)
<cfstoredproc procedure="CONTRACTS_PKG.GET_CONTRACT_BY_DYN_SQL" datasource="#REQUEST.dsn#">
<cfprocparam cfsqltype="CF_SQL_INTEGER" type="in" value="1" variable="P_CONTRACTID">
<cfprocresult name="qDataDynSQL" resultset="1">
</cfstoredproc>
<br>Dynamic SQL Query:
<cfdump var="#qDataDynSQL#" label="Dynamic SQL Query">
Oracle Package
create or replace
PACKAGE CONTRACTS_PKG AS
TYPE T_CURSOR IS REF CURSOR;
PROCEDURE GET_CONTRACT_BY_DYN_SQL(P_CONTRACTID IN NUMBER, P_COLS IN VARCHAR2 DEFAULT '*', IO_CURSOR IN OUT T_CURSOR);
END CONTRACTS_PKG;
create or replace
PACKAGE BODY CONTRACTS_PKG AS
-- Get Contract Using Dynamic SQL
PROCEDURE GET_CONTRACT_BY_DYN_SQL(P_CONTRACTID IN NUMBER, P_COLS IN VARCHAR2 DEFAULT '*', IO_CURSOR IN OUT T_CURSOR)
IS
V_CURSOR T_CURSOR;
V_SQL VARCHAR2(200);
BEGIN
IF p_contractid > 0 THEN
V_SQL := 'SELECT '|| P_COLS || ' FROM CONTRACTS WHERE contract_id = ' || P_CONTRACTID ;
ELSE
V_SQL := 'SELECT '|| P_COLS || ' FROM CONTRACTS';
END IF;
OPEN V_CURSOR FOR V_SQL;
IO_CURSOR := V_CURSOR;
END GET_CONTRACT_BY_DYN_SQL;
END CONTRACTS_PKG;
Does anyone knows why it throws an error? As you can see in the package header & body the parameter P_COLS has the default value as '*'.
Looking forward to hear from someone.
Thanks,
Hitesh Patel

931198 wrote:
I have an Oracle Package & it has a stored procedure with optional parameter. The calling code is in ColdFusion.
When I run my webpage the Oracle throws below error.Never mind the error - your approach is most definitely a candidate for Oracle WTF.
Nothing sane about this approach. Especially the decision not to use bind variables and slowing down cursor processing significantly by burning a lot more CPU cycles on hard parsing and fragmenting the SQL Shared Pool in the process.
Why not used MS Access instead? It is far more suited as a mickey mouse database for a goofy application?
Why am I badmouthing your approach to Oracle? Because that is exactly the primary cause, the #1 reason, for poor Oracle performance and run-time problems dealing with Shared Pool fragmentation. It is something that many Oracle experts blog about, talk about, write about. It is addressed in numerous books, Oracle documentation, and even Oracle Support Notes.
And despite the amount of information available on how to get the basics rights in using Oracle... this approach you are pursuing still refuses to die. So it deserves to be beaten with a lead pipe when it rears its ugly head here in this forum..

Optional Parameter in Crystal Report XI designer

Hi,
Is there a way to have parameter as optional in Crystal Reports XI ?
I am okay to have the parameter shown but I dont want it to be mandatory.

In CR XI the only way to make a parameter optional is to assign it a default value.
For example:
If it is a date range parameter then give the date range parameter a default value say '1900-01-01'. Set this by editing the parameter and clicking on 'Default Value' in the options section.
Then, in your selection criteria have logic similar to this.
If minimum({?date parameter}) = date(1900,01,01)
and minimum({?date parameter}) = maximum({?date parameter}) then
{database.date} = {database.date}
else
{database.date} in {?date parameter};
If the users do not change the default value for the date range then it will pick up all records otherwise limited to the date range.
If it is a numeric parameter then assign a value of zero and for string perhaps 'z' (make sure the default value will never be equal to a DB value) and then in the selection criteria use:
If {?parameter} = 'z' then {database.field} = {database.field}
else
{database.field} = {?parameter};

Passing optional parameter to subreport

Hi,
I am having a CR 2008 report based on BW query. The query has optional parameter (the value can be set to NULL). When I try to use this report as subreport in my main report, I am unable to pass Null(equivalent to set to NULL) to my subreport using subreport link. I tried blank and "" in a formula field and try to link it to the subreport parameter but it doesn't work. Kindly guide me in this regard.
Thanks and Regards,
Subbu S

Hi Subbu,
Try to create a formula and pass the formula value to your sub report parameter and in sub report record selection based on main report formula value try to filter the records.
Ex: Main report create the following formula :
Whileprintingrecords;
Shared Stringvar x;
If not hasvalue({?Optional}) then
x:='No Value'
else
x:={?Optional}
Now link this to your sub report parameter
In sub report record selection
If {?parameter} = 'No Value ' then true else {?Parameter} = FieldValue.
Thanks,
Sastry

Optional parameter

hi
if anybody knows how to use optional parameter in oracle stored procedure,
pls help me
regards
joshy

Take a look to Default Values for Subprogram Parameters
Nicolas.

Optional Parameter without a value

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