Using a scalar user defined function in a select case statement

I have a simple select statement below and I want to have a case statement for some conditions based on the result of the udf returned value. I then want the returned value from that specific case statement to be returned where i have indicated 'DISPLAY
ZIPCODE' below.
SELECT
   CASE
         WHEN (SELECT Top 1 ZipCode FROM ufn_GetAddressByBusinessEntityIDandAddressTypeID(table1.BusinessEntityID,712) IS NOT NULL THEN 'DISPLAY ZIPCODE'
         WHEN (SELECT Top 1 ZipCode FROM ufn_GetAddressByBusinessEntityIDandAddressTypeID(table1.BusinessEntityID,714) as r) IS NOT NULL THEN 'DISPLAY ZIPCODE'
         ELSE NULL
       END as Zipcode,
FROM
table1

SELECT COALESCE(ufn_GetAddressByBusinessEntityIDandAddressTypeID(table1.BusinessEntityID,712),ufn_GetAddressByBusinessEntityIDandAddressTypeID(table1.BusinessEntityID,712)) AS Zipcode
FROM table1
Nope. This is two function calls. coalesce(a, b, c, ...) is just syntatic sugar for
CASE WHEN a IS NOT NULL THEN a
WHEN b IS NOT NULL THEN b
WHEN c IS NOT NULL THEN c
END
But if you use isnull it's a different matter. (But isnull() permits two arguments.)
Erland Sommarskog, SQL Server MVP, [email protected]

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Using a SQL user-defined function in Crystal Reports XI

Post Author: JoannKarp
CA Forum: Formula
Is it possible to use a user defined function in SQL and use this in multiple Crystal reports?
JoannKarp

SELECT COALESCE(ufn_GetAddressByBusinessEntityIDandAddressTypeID(table1.BusinessEntityID,712),ufn_GetAddressByBusinessEntityIDandAddressTypeID(table1.BusinessEntityID,712)) AS Zipcode
FROM table1
Nope. This is two function calls. coalesce(a, b, c, ...) is just syntatic sugar for
CASE WHEN a IS NOT NULL THEN a
WHEN b IS NOT NULL THEN b
WHEN c IS NOT NULL THEN c
END
But if you use isnull it's a different matter. (But isnull() permits two arguments.)
Erland Sommarskog, SQL Server MVP, [email protected]

How to use StreamTransformationException in user-defined function?

Hi,
I'm doing a DBLookup (using Java pgm in one of my Imported Java archives) for populating one of the fields in message mapping. If the DB connection fails, I want to terminate the mapping by throwing a StreamTransformationException from within a user-defined function.
I require urgent help in this regard.
Thanks in advance.
Regards,
Sridhar Rajan N

Hi,
I had the same problem. I failed to find the way how to throw a StreamTransformationException in my user-defined function. But I used another exception: NullPointerException. Yes, I know, this is not an elegant solution...
Best regards,
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Calling a user defined function in a select statement

PLS-00231: function 'F_GET_PROJECT_ID' may not be used in SQL
I am caling a user defined function 'F_GET_PROJECT_ID' in a select statement and getting the above error .
Can any one help me to resolve it.
I can not replace the function with a local variable nor can I assign the output of the function to a variable and use the variable in the sql stmt. cos, the in put parameters of the function comes from the same select statement.
Please help
Thanks in advance

Can you provide your function code? Using a function like that is possible from the below example. I suspect something in your function code.
SQL> create or replace function sample_func(p_sal number)
2 return number
3 is
4 v_sal number;
5 begin
6     v_sal := p_sal+100;
7     return v_sal;
8 end;
9 /
Function created.
SQL>
SQL> select empno, ename, sal, sample_func(sal)
2 from emp
3 /
     EMPNO ENAME             SAL SAMPLE_FUNC(SAL)
      7839 KING             5000             5100
      7698 BLAKE            2850             2950
      7782 CLARK            2450             2550
      7566 JONES            2975             3075
      7654 MARTIN           1250             1350
      7499 ALLEN            1600             1700
      7844 TURNER           1500             1600
      7900 JAMES             950             1050
      7521 WARD             1250             1350
      7902 FORD             3000             3100
      7369 SMITH             800              900
      7788 SCOTT            3000             3100
      7876 ADAMS            1100             1200
      7934 MILLER           1300             1400
14 rows selected.
SQL>And yeah... your formatted code is this.
cursor c1 is
   SELECT t.upi_nbr upi_nbr,
          f_get_project_id(l.pay_type_code,
                           l.charge_type_nme,
                           l.charge_code) project_id,
          LAST_DAY(TO_DATE(SUBSTR(t.Year_Month, 5, 2)||'/'||'01'||'/'||SUBSTR(t.Year_Month,1,4),
                           'MM/DD/YYYY'))reporting_period_end_date,
          SUM (c.hours_worked_qty) reported_hrs
   from trs.trs_timesheet@oraprod5 T,
        trs.trs_line@oraprod5 L,
        trs.trs_cell@oraprod5 C
where T.upi_nbr=L.upi_nbr
and T.year_month=L.year_month
and L.row_nbr=C.row_nbr
and L.upi_nbr=C.upi_nbr
and L.year_month = C.year_month
and L.invalid_activity_ind = 'V'
and rtrim(L.charge_code) is not null
AND L.Pay_Type_Code<>'REQ'
and C.Hours_Worked_Qty > 0
GROUP BY t.upi_nbr,
         t.year_month,
         t.oui_nbr,
         l.charge_code,
         l.activity_detail_code,
         l.charge_type_nme,
         l.pay_type_code;Cheers
Sarma.

Error while using user defined function in reports

Hi,
When I use the below user defined function in oracle reports I got the wrong number of arguments error
select test_function(id,a_number,v_date-14,b_number) from dual;
If I remove -14 from the argument it works. But iIneed to subtract 14 days from the date.
Thanks for your help.

select test_function(id,a_number,v_date-14,b_number) from dual;
you have to give the command like this to_date(v_date,'dd-mon-yyyy')-14
because the v_Date you choose in the parameter form is not having the corrent date format
the format dd-mon-yyyy is the format in which v_date is passed by the user.

Using Xquery predefined functions in User defined functions

Hi All,
I have a requirement of calling a user defined function in osb xquery file.In that function i have to use osb predefined string functions but they are not working it shows error message in xquery file.Can you please suggest how to use them in user defined functions.
Thanks,
Srinivas.

Hi Eric,
I have a Proxy service it reads mfl data and transform to some other schema.In this Transformation one element data is taken and we have to manipulate that data
based on the incoming value and return .For this process i took one function and i have to check weather it contains some symbols like ^,~ so i used contains function of
String with and with out prefix with if else condition it gives error "Unexpected token if"
declare function insp:buildReferenceRange($inRange as xs:string)
as xs:string
let $low:=""
l
if(contains($inRange,"^")) //"Unexpected token if"
name space and prefix are defined in the top of file.
Thanks,
Srinivas.

User defined function in PI 7.1 compilation error "Recompile with -Xlint"

Hi All,
I have a user defined function in PI 7.1 .,which is throwing the following error.
Do i need to add any import statements like "import java.lang.String" in the beginning.
It is unable to recognize the String methods used in the user defined function.
E:\usr\sap\PID\DVEBMGS30\j2ee\cluster\server0\.\temp\classpath_resolver\Map02580a102a0911deb2b20019990eddfd\source\com\sap\xi\tf\_MM_C_to_Goods_.java:276:
cannot find symbol
symbol : method trim()
location: class java.lang.Object
if(container.getParameter("AdjustmentQuantity").trim().startsWith("-")){ ^
Note: E:\usr\sap\PID\DVEBMGS30\j2ee\cluster\server0\.\temp\classpath_resolver\Map02580a102a0911deb2b20019990eddfd\source\com\sap\xi\tf\_MM_C_to_Goods_.java
uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: E:\usr\sap\PID\DVEBMGS30\j2ee\cluster\server0\.\temp\classpath_resolver\Map02580a102a0911deb2b20019990eddfd\source\com\sap\xi\tf\_MM_C_to_Goods_.java
uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
Any Help greatly appreciated..
Collins

container.getParameter() returns Object, not String.
try following:
String aq = (String) container.getParameter("AdjustmentQuantity");
if(aq.trim().startsWith("-"))
Regards
Stefan

User defined function in a cursor

Hi All,
I need to use a user defined function(which returns a value based on my Procedure's input parameter) in my explicit cursor. Something like
create or replace procedure test(pi_input number)
cursor c1
is
select col1,
           col2,
          func(pi_input),
          col4
from table;
begin
end;
Is this possible? I

Hi,
User-defined functions can appear in SQL statements, including cursors, if they follow certain rules (e.g., all arguments are IN arguments, in one of the SQL data types).
You really need to post your code. You don't need to post the compete code; a simplified version that gets the same error would serve just as well (actually better). Include CREATE TABLE and INSERT statements for any tables used, the function code, the code that calls the function, and the results you want from that code, given the sample data you posted.
Explain, using specific examples, how you get those results from that data.
Always say what version of Oracle you're using (e.g. 11.2.0.2.0).
See the forum FAQ: https://forums.oracle.com/message/9362002
Does your function work the way you want when it is not in a cursor?

Determine Element maxLenght in User-Defined Function

Hi,
I have the problem, that I have to fill up several fields with leading 0. I wrote a User-Defined Function for this. But the function doesn't know how long this element is, so I have to give the function the length of the element.
Is it possible to determine the length of the current element in an extended User-Defined Function
Yours
Thomas

Hi,
>use a simple user defined function with the desired
>source element as input and give the following code...
>int k = a.length();
>String len = Integer.toString(k);
>return len;
That function will only give me the actual lenght of the input element, what I need is the max lenght of the target element...
>You can also use the built-in FormatNumber function to
>insert leading 0s.
How can I use this function to add leading zeros?
"'000'#" ? But there I have to do this for every element
>I think an easy solution for this is, just have a
>simple function with two arguments. The first is the
>element, the second is a constant, where you put the
>length.
Well I have this function. But I am looking for way to the safe the second argument ;o)
Thank you all for your help
Thomas

How many types of user defined functions are there?

how many types of user defined functions are there?

Hi Ramakrishna,
A user-defined function is only visible in the message mapping in which you created it. You can insert the function in the data-flow editor as a standard function by using the User-Defined function category.
You can use the following user-defined functions:
1.Simple functions, which can process individual field input values for each function call. Simple functions therefore expect strings as input values and return a string.
2.Advanced functions, which can process several field input values for each function call. You can import either all field values of a context or the whole queue for the field in an array before calling the function. For more information, see Advanced User-Defined Functions.
    go through :
http://help.sap.com/saphelp_erp2004/helpdata/en/22/e127f28b572243b4324879c6bf05a0/content.htm
     Advanced user-defined functions, which can process more than just individual field values.Instead, you can import a complete context or an entire queue for a field as an array before your function is called
    go through :
http://help.sap.com/saphelp_erp2004/helpdata/en/f8/2857cbc374da48993c8eb7d3c8c87a/content.htm
*Pls: Reward points if helpful*
Regards,
Jyoti

Advanced User Defined Function

Dear All,
I have a target structure as follows:
<Item>
   <Record10>
      <RecordType>
      <BankCode>
      <AccountID>
      <Amount>
   </Record10>
   <Record50>
      <RecordType>
      <Segment1>
      <segment2>
      <segment3>
   </Record50>
</Item>
I want to fill the elements in the Record50 in a special way by using some logic. Sometimes I may have to create multiple Record50 structures. So I'm using an advanced user defined function to do this.
My mapping is as follows:
Source Structure -> myFunction()->Record50
And in myFunction() I wrote the following piece of code:
result.addValue("50");
result.addValue("PayRef1");
result.addValue("Address");
result.addValue("Nil");
I expect the output to be:
   <Record50>
      <RecordType>50</RecordType>
      <Segment1>PayRef1</Segment1>
      <segment2>Address</segment2>
      <segment3>Nil</segment3>
   </Record50>
But the output is like this:
<Record50>50</<Record50>
<Record50>PayRef1</<Record50>
<Record50>Address</<Record50>
<Record50>Nil</<Record50>
Can somebody tell me how to proceed? I tried to insert a context change in the beginning, but then the Record50 itself is not appearing.
Thanks,
Sandeep

Hi,
Advanced UDF will not create you like you expected.
You need to do like this
Source>myFunction1()-><RecordType>
And in myFunction() you do code:
result.addValue("50");
Source>myFunction2()-><Segment1>
And in myFunction2() you do code:
result.addValue("PayRef1");
so on..
Thanks,
Prakash

User Defined Function in MV

Hello All,
Can we have user defined function in the select clause of a materializied view.
I am aware that we cannot have subquery in the select clause of MV.
Regards,
Kumar.

That's not hard to test ...
SQL> create function f return varchar2
2 is
3 begin
4    return 'I''m from function f';
5 end;
6 /
Functie is aangemaakt.
SQL> create materialized view my_mv
2 as
3 select empno
4       , ename
5       , f
6    from emp
7 /
Gematerialiseerde view is aangemaakt.
SQL> column f format a30
SQL> select * from my_mv
2 /
     EMPNO ENAME      F
      7369 SMITH      I'm from function f
      7499 ALLEN      I'm from function f
      7521 WARD       I'm from function f
      7566 JONES      I'm from function f
      7654 MARTIN     I'm from function f
      7698 BLAKE      I'm from function f
      7782 CLARK      I'm from function f
      7788 SCOTT      I'm from function f
      7839 KING       I'm from function f
      7844 TURNER     I'm from function f
      7876 ADAMS      I'm from function f
      7900 JAMES      I'm from function f
      7902 FORD       I'm from function f
      7934 MILLER     I'm from function f
14 rijen zijn geselecteerd.If you want the materialized view to be fast refreshable, then the answer is no.
Regards,
Rob.

Error in conditional map using User Defined Function

All,
In my mapping I basically have a user defined function that returns the filename of my inbound file from the adapter-specific message attributes (file adapter). I know this is coded properly because if I simply assign this function to my destination field I can see the filename in the payload XML.
However if I conditionally check that returned value using if,then,else I get an error message stating:
"During the application mapping com/sap/xi/tf/_MaterialData2ZcustProdMastMulti_ a com.sap.aii.utilxi.misc.api.BaseRuntimeException was thrown: RuntimeException in Message-Mapping transformation"
Essentially in my if I'm checking if the value returned by my user defined function is equal to the constant "SOMECONSTANT" then I'm setting my destination field to some other constant value. Otherwise it's equal to a different constant value.
Any thoughts?

Claus,
Thanks for the help. I actually had figured the problem out on my own. Sorry for not updating the thread sooner. What happened was this (as I suspected it wasn't related to my user defined function). For the newbies out there (of which I'm one) the problem was I was comparing strings in the graphical mapping tool using the Boolean "EQUALS" rather than the Text "EQUALSS".
Can you give yourself points for solving

How can I use Seeburger java functions on SAP XI's user defined functions?

Hi All,
As my title implies; how can I use Seeburger java functions on SAP XI's user defined functions? I've tried searching over the net in tutorials regarding this topic but I failed to find one; can someone provide me information regarding my question? thanks very much.
best regards,
Mike

Hi Mike !
You should check your documentation about which java classes you need to reference in the "import" section of your UDF. And also deploy the java classes into the java stack or include them as a imported archive in integration repository...it should be stated in the seeburger documentation.
What kind of functions are you trying to use?
Regards,
Matias.

How to resolve the error while using user defined function.

EPN Assembly file
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:osgi="http://www.springframework.org/schema/osgi"
xmlns:wlevs="http://www.bea.com/ns/wlevs/spring"
xmlns:jdbc="http://www.oracle.com/ns/ocep/jdbc"
xmlns:spatial="http://www.oracle.com/ns/ocep/spatial"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/osgi
http://www.springframework.org/schema/osgi/spring-osgi.xsd
http://www.bea.com/ns/wlevs/spring
http://www.bea.com/ns/wlevs/spring/spring-wlevs-v11_1_1_3.xsd
http://www.oracle.com/ns/ocep/jdbc
http://www.oracle.com/ns/ocep/jdbc/ocep-jdbc.xsd
http://www.oracle.com/ns/ocep/spatial
http://www.oracle.com/ns/ocep/spatial/ocep-spatial.xsd">
     <wlevs:event-type-repository>
          <wlevs:event-type type-name="TestEvent">
               <wlevs:class>com.bea.wlevs.event.example.FunctionCEP.TestEvent</wlevs:class>
          </wlevs:event-type>
     </wlevs:event-type-repository>
     <wlevs:adapter id="InputAdapter"
          class="com.bea.wlevs.adapter.example.FunctionCEP.InputAdapter">
          <wlevs:listener ref="inputStream" />
     </wlevs:adapter>
     <wlevs:channel id="inputStream" event-type="TestEvent">
          <wlevs:listener ref="processor" />
     </wlevs:channel>
     <wlevs:processor id="processor">
          <wlevs:listener ref="outputStream" />
          <wlevs:function function-name="sum_fxn" exec-method="execute">
          <bean>com.bea.wlevs.example.FunctionCEP.TestFunction</bean>
          </wlevs:function>
     </wlevs:processor>
     <wlevs:channel id="outputStream" event-type="TestEvent">
          <wlevs:listener ref="bean" />
     </wlevs:channel>
     <bean id="bean" class="com.bea.wlevs.example.FunctionCEP.OutputBean">
     </bean>
</beans>
Event class
package com.bea.wlevs.event.example.FunctionCEP;
public class TestEvent {
     private int num_1;
     private int num_2;
     private int sum_num;
     public int getSum_num() {
          return sum_num;
     public void setSum_num(int sumNum) {
          sum_num = sumNum;
     public int getNum_1() {
          return num_1;
     public void setNum_1(int num_1) {
          this.num_1 = num_1;
     public int getNum_2() {
          return num_2;
     public void setNum_2(int num_2) {
          this.num_2 = num_2;
Adapter class
package com.bea.wlevs.adapter.example.FunctionCEP;
import com.bea.wlevs.ede.api.RunnableBean;
import com.bea.wlevs.ede.api.StreamSender;
import com.bea.wlevs.ede.api.StreamSource;
import com.bea.wlevs.event.example.FunctionCEP.TestEvent;
public class InputAdapter implements RunnableBean, StreamSource {
private StreamSender eventSender;
public InputAdapter() {
super();
public void run() {
     generateMessage();
private void generateMessage() {
     TestEvent event = new TestEvent();
     event.setNum_1(10);
     event.setNum_2(20);
     eventSender.sendInsertEvent(event);
public void setEventSender(StreamSender sender) {
eventSender = sender;
public synchronized void suspend() {
Output Bean class
package com.bea.wlevs.example.FunctionCEP;
import com.bea.wlevs.ede.api.StreamSink;
import com.bea.wlevs.event.example.FunctionCEP.TestEvent;
import com.bea.wlevs.util.Service;
public class OutputBean implements StreamSink {
     public void onInsertEvent(Object event) {
          System.out.println("In Output Bean");
          TestEvent event1 = new TestEvent();
          System.out.println("Num_1 is :: " + event1.getNum_1());
          System.out.println("Num_2 is :: " +event1.getNum_2());
          System.out.println("Sum of the numbers is :: " +event1.getSum_num());
Function Class
package com.bea.wlevs.example.FunctionCEP;
public class TestFunction {
     public Object execute(int num_1, int num_2)
          return (num_1 + num_2);
config.xml file
<?xml version="1.0" encoding="UTF-8"?>
<wlevs:config xmlns:wlevs="http://www.bea.com/ns/wlevs/config/application"
xmlns:jdbc="http://www.oracle.com/ns/ocep/config/jdbc">
     <processor>
          <name>processor</name>
               <rules>
               <view id="v1" schema="num_1 num_2">
                    <![CDATA[
                         select num_1, num_2 from inputStream
                    ]]>
               </view>
               <view id="v2" schema="num_1 num_2">
               <![CDATA[
               select sum_fxn(num_1,num_2), num_2 from inputStream // I am getting error when i am trying to call this function
               ]]>
               </view>
               <query id="q1">
                    <![CDATA[
                         select from v2[now] as num_2*     // Showing error while accessing the view also               ]]>
               </query>
          </rules>
     </processor>
</wlevs:config>
Error I am getting is :
Invalid statement: "select >>sum_fxn<<(num_1,num_2),age from inputStream"
Description: Invalid call to function or constructor: sum_fxn
Cause: Probable causes are: Function name sum_fxn(int,int) provided is invalid, or arguments are of
the wrong type., or Error while handling member access to complex type. Constructor sum_fxn of type
sum_fxn not found. or Probable causes are: Function name sum_fxn(int,int) provided is invalid, or
arguments are of the wrong type., or Error while handling member access to complex type.
Constructor sum_fxn of type sum_fxn not found.
Action: Verify function or constructor for complex type exists, is not ambiguous, and has the correct
number of parameters.
I have made a user defined function in a java class and configured this function in the EPN assembly file under the processor tag.
But when i am trying to access the function in the config.xml file , it is giving me an error in the query.
Please provide urgent help that how to write the exact query.

Hi,
In the EPN Assembly file use
<bean class="com.bea.wlevs.example.FunctionCEP.TestFunction"/>
instead of
<bean>com.bea.wlevs.example.FunctionCEP.TestFunction</bean>
Best Regards,
Sandeep

Using a scalar user defined function in a select case statement

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