Ldap problem, ORA-06521: PL/SQL: Error mapping function

I am getting this error(s)
ORA-06521: PL/SQL: Error mapping function
ORA-06512: at "SYS.DBMS_LDAP_API_FFI", line 0
ORA-06512: at "SYS.DBMS_LDAP", line 1338
ORA-06512: at "SYS.DBMS_LDAP", line 1273
ORA-06512: at "SYS.DBMS_LDAP", line 529
ORA-06512: at line 127
after binding and searching an ldap directory.
Line 127 is:
my_dn := DBMS_LDAP.get_dn(my_session, my_entry);
Both of the 'my_xx' parameters have been successfully set earlier in the script I believe as they produce no errors and DBMS_LDAP.count_entries(my_session, my_message) returns = 1.
I am following the example at:
http://download-west.oracle.com/docs/cd/B10501_01/network.920/a96577/smplcode.htm#636994
In fact any of the functions used in the 'while loop' in the above example give a similar error.
Apparently SYS.DBMS_LDAP_API_FFI is a call to an external C program, but this would be a standard Oracle one, not one I have written.
I am connecting to a non-Oracle ldap server, and have tried several (OpenLDAP 2.X, & Windows 2000 AD), with same results.
Any suggestions gratefully received.
Cheers
KIM

Scott,
Thanks for your concern. I should have explained. I am working in HTMLdb, successfully using ldap to authenticate, but now need to get the logged-in user's name and other details. All my attemps to use the wwv_flow_ldap functions have failed, and I am no resorting to DBMS_LDAP to get what I want. I am hoping thatsome helpful person can shed some light on this problem
Cheers
KIM

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  • ORA-06502 PL/SQL Error

    Hi All
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    I have already gone through all packages and procedure used in my application .
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    I also checked all NLS Setting of my DB .but still in vague about this error
    Can some help me......
    Thanks & Regards
    Shrirang
    Message was edited by:
    user528219

    As you said
    Main Problem is that some time data is save properly even if error is occurred
    and some time it not saving data in to the DB. and the same error we are trying to
    reproduce on development server but it is not reproducing ...
    I also checked all NLS Setting of my DB .but still in vague about this error
    Can some help me......
    Hi Khurram ,
    Thanks for reply
    the problem is not related any perticular code its big package which we call
    to load , modify and save data . i have checked all code . my filed size is 4 time
    more then specified size by user for a perticular field.
    can you plz. suggest me any other way to solve this
    SQL> CREATE OR REPLACE PACKAGE error_06502 AS
      2  FUNCTION  a RETURN VARCHAR2;
      3  END error_06502;
      4  .
    SQL> /
    Package created.
    SQL> CREATE OR REPLACE PACKAGE BODY error_06502 AS
      2    v1   NUMBER:='A';<----------------Damn it is an headache
      3    FUNCTION a RETURN VARCHAR2 AS
      4      BEGIN
      5       RETURN 'No Error';
      6    END a;
      7    BEGIN
      8      DBMS_OUTPUT.PUT_LINE ('Error is going to trapped for assigining variable v1..');
      9      EXCEPTION WHEN OTHERS THEN
    10      DBMS_OUTPUT.PUT_LINE ('Now error is handled..');
    11  END error_06502;
    12  .
    SQL> /
    Package body created.
    First time
    SQL> EXEC DBMS_OUTPUT.PUT_LINE(error_06502.a);
    BEGIN DBMS_OUTPUT.PUT_LINE(error_06502.a); END;
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    ORA-06502: PL/SQL: numeric or value error: character to number conversion error
    ORA-06512: at "SCOTT.ERROR_06502", line 2
    ORA-06512: at line 1
    Now see here
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    No Error
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    First Time
    Whenever you execute the package first time it initiliased once for each
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    SQL> DISCONNECT
    Disconnected from Oracle9i Enterprise Edition Release 9.2.0.1.0 - Production
    With the Partitioning, OLAP and Oracle Data Mining options
    JServer Release 9.2.0.1.0 - Production
    SQL> CONN scott/tiger
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    ORA-06502: PL/SQL: numeric or value error: character to number conversion error
    ORA-06512: at "SCOTT.ERROR_06502", line 2
    ORA-06512: at line 1.
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    SQL> EXEC DBMS_OUTPUT.PUT_LINE(error_06502.a);
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    properly,you had better to make assignment default value in the executable
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      2      v1   NUMBER;
      3    FUNCTION a RETURN VARCHAR2 AS
      4      BEGIN
      5       RETURN 'No Error';
      6    END a;
      7    BEGIN
      8       DBMS_OUTPUT.PUT_LINE ('Error is going to trapped for assigining variable v1..');
      9       v1:='A';
    10      EXCEPTION WHEN OTHERS THEN
    11      DBMS_OUTPUT.PUT_LINE ('Now error is handled..');
    12  END error_06502;
    13  .
    SQL> /
    Package body created.
    SQL> EXEC DBMS_OUTPUT.PUT_LINE(error_06502.a);
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    Now error is handled..
    No Error
    PL/SQL procedure successfully completed.----------------------------------------------------------------------------------------------------------------
    In my last post there would be another reason for this error i would code it here again..
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      3  BEGIN
      4  a:='1';
      5  END;
      6  .
    SQL> /
    PL/SQL procedure successfully completed.
    SQL> DECLARE
      2  a   NUMBER(6);
      3  BEGIN
      4  a:='1a';
      5  END;
      6  .
    SQL> /
    DECLARE
    ERROR at line 1:
    ORA-06502: PL/SQL: numeric or value error: character to number conversion error
    ORA-06512: at line 4If none of these reason which i had mentioned please let us know to share yours
    workaround.
    Khurram

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