How to use user defined function in select query using Toplink

Hi Friends
I am little bit of new in Toplink stuff... so please help me...
I have to database functions 1. encrypt and 2. decrypt.
I want to exceute the following sql query using toplink
select port, database, user_name, decrypt(encrypt('String which is to be encrypt ','password'),'password') from CONFIGURATION
can anyone tell me , how to write code in toplink which will give the about sql output.
thanks .....

The "Specifying a Custom SQL String in a DatabaseQuery" section in the TopLink Developer's Guide may help...

Similar Messages

  • Using User Defined Function is SQL

    I did the following test to see how expensive it is to use user defined functions in SQL queries, and found that it is really expensive.
    Calling SQRT in SQL costs less than calling a dummy function that just returns
    the parameter value; this has to do with context switchings, but how can we have
    a decent performance compared to Oracle provided functions?
    Any comments are welcome, specially regarding the performance of UDF in sql
    and for solutions.
    create or replace function f(i in number) return number is
      return i;
      l_start   number;
      l_elapsed number;
      n number;
      select to_char(sysdate, 'sssssss')
        into l_start
        from dual;
      for i in 1 .. 20 loop
        select max(rownum)
          into n
          from t_tdz12_a0090;
      end loop;
      select to_char(sysdate, 'sssssss') - l_start
        into l_elapsed
        from dual;
      dbms_output.put_line('first: '||l_elapsed);
      select to_char(sysdate, 'sssssss')
        into l_start
        from dual;
      for i in 1 .. 20 loop
        select max(sqrt(rownum))
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          from t_tdz12_a0090;
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        into l_elapsed
        from dual;
      dbms_output.put_line('second: '||l_elapsed);
      select to_char(sysdate, 'sssssss')
        into l_start
        from dual;
      for i in 1 .. 20 loop
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          from t_tdz12_a0090;
      end loop;
      select to_char(sysdate, 'sssssss') - l_start
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       first: 303
       second: 1051
       third: 1515
    Kind regards

    I find that inline SQL is bad for performance but
    good to simplify SQL. I keep thinking that it should
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    performance but have never seen that happen.inline SQL is only bad for performance if the database design (table structure, indexes etc.) is poor or the way the SQL is written is poor.
    Context switching between SQL and PL/SQL for a User defined function is definitely a way to slow down performance.
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    There are a few things you can do to improve function
    performance, shaving microseconds off execution time.
    Consider using the NOCOPY hints for your parameters
    to use pointers instead of copying values. NOCOPY
    is a hint rather than a directive so it may or may
    not work. Optimize any SQL in the called function.
    Don't do anything in loops that does not have to be
    done inside a loop.Well, yes, but it's even better to keep all processing in SQL where possible and only resort to PL/SQL when absolutely necessary.
    The on-line documentation has suggested that using a
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    have not been able to demonstrate this and there are
    notes in Metalink suggesting that this does not
    happen. My experience is that DETERMINISTIC
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    You can use DBMS_PROFILER to get run-time statistics
    for each line of your function as it is executed to
    help tune it.Or code it as SQL. ;)

  • How to Developed user defined functions to call function modules in SAP R/3

    •     how to Develope user defined functions to call function modules in SAP R/3 system

    Hello Raja,
    Go through this V.imp Link...
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    On That u specify
    Function Group Name..............
    Short Text..............................
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    Specify the Function Module Name: Eg: Z_Bapi_Materialmaster
    Short Text.......
    Next Go to Attributes..
    Select Radio button : Remote enabled model
    Go to Parameters..
    Click Import...
    Give Parameter Type Associate type S.t
    next Click Export...
    Give Parameter Type Associate type S.t
    Next Click Tables Button..
    Specify tables..
    Next click source code button..
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    Re: User Defined Functions Tutorials
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  • Multi mapping question using user defined function

    I have a message with multiple occuring nodes (i.e. one message with multiple orders (header + detail)) that I need to map to a idoc. I need to filter out of the source based on order type (in header) from creating an idoc.. How do I do it using user defined function + message mappping ?

    All - Thanks much.. Here is my requirement that is no solved by regular mapping
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  • How to create user defined functions in xi.

    how to create user defined functions in xi.
    can anyone give info with screen shots.

    Please follow the  steps mentioned in below link
    also refer below links to know more about UDF
    Edited by: Swarup Sawant on Mar 3, 2008 3:59 PM

  • How 2 Develope user defined functions to call function modules in R/3 syst

    How to Develope user defined functions to call function modules in SAP R/3 xi

    If those function modules are RFC enabled then we can call those function module from user defined functions. Please see below link
    Reward points if helpful.
    Vijay Kumar T,

  • How to resolve the error while using user defined function.

    EPN Assembly file
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         <wlevs:processor id="processor">
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              <wlevs:function function-name="sum_fxn" exec-method="execute">
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              <wlevs:listener ref="bean" />
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         public int getNum_1() {
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    import com.bea.wlevs.ede.api.RunnableBean;
    import com.bea.wlevs.ede.api.StreamSender;
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    public InputAdapter() {
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    package com.bea.wlevs.example.FunctionCEP;
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    import com.bea.wlevs.event.example.FunctionCEP.TestEvent;
    import com.bea.wlevs.util.Service;
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              System.out.println("Num_2 is :: " +event1.getNum_2());
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                   <query id="q1">
                             select from v2[now] as num_2*     // Showing error while accessing the view also               ]]>
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    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.

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

  • How to add user defined functions in Menu bar of a Selection Screen?

    Can anybody please suggest me that how can I add user defined functions in the menu bar of a Selection Screen?
    [email protected]

    Dear Amit,
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      gv_okcode = sy-ucomm.
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      CASE gv_okcode.
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        IF datub >= datuv.                              
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  • Error while using user defined function in reports

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  • How to migrate User Define Function to another mapping in other namespace

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  • Error in conditional map using User Defined Function

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