Error Handling for ORA-02291

Dear all,
please help me, what exception name i must use
(like "NO_DATA_FOUND" or "DUP_VAL_ON_INDEX") for error handling
(exception) for ORA-02291 : integrity constraint(....) violated -
parent key not found.
Thank you.
Regards
Teguh Santoso

Find out the error no. Oracle returns for this error & in the
front-end (Ex:Forms) create a Pragma Exception error handler &
give ur user defined error message when the user encounters
it....
Hope this suffices.
Santhosh

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Error handler for ORA-29283 - not working

I am running Oracle 9.2.0.4 on HP-UX.
I have a stored procedure which reads a text file. I have set up an execption for error code ORA-29283 (invalid file operation). When I test my procedure (by not having the file to read) my exception handler is bypassed for a general exception error and my procedure terminates.
here's parts of my code:
Declare
file_not_found EXCEPTION;
PRAGMA EXCEPTION_INIT (file_not_found, -29283);
BEGIN
nochourly_file := UTIL_FILE.fopen('/mydirectory','myfile.txt','R');
Loop
begin
UTL_FILE.get_line(nochourly_file, sbuffer);
EXCEPTION
WHEN NO_DATA_FOUND
THEN
GOTO end_of_file;
WHEN file_not_found
THEN
DBMS_OUTPUT.put_line ('Invalid File Operation - file not found');
skip_last_hour_processed;
GOTO end_of_file;
WHEN OTHERS
THEN
err_num := SQLCODE;
err_msg := SUBSTR (SQLERRM, 1, 100);
DBMS_OUTPUT.put_line ('Error ' || TO_CHAR (err_num));
DBMS_OUTPUT.put_line (err_msg);
DBMS_OUTPUT.put_line (sbuffer);
RAISE;
EXIT;
END;
===============
When this fails I expect to see the message
"Invalid file operation - file not found"
which indicates my exception handler was processed.
Instead I see:
SQL> @$HOME/newhourly_dly
Begin processing at 20060627154321
nlasthourprocessed:20060627100000
Last Hour Processed is 20060627100000
BEGIN noc_hourly_daily_load; END;
ERROR at line 1:
ORA-29283: invalid file operation
ORA-06512: at "SYS.UTL_FILE", line 449
ORA-29283: invalid file operation
ORA-06512: at "HNS.NOC_HOURLY_DAILY_LOAD", line 374
ORA-06512: at line 1
Elapsed: 00:00:00.05
Disconnected from Oracle9i Enterprise Edition Release 9.2.0.4.0 - 64bit Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.4.0 - Production
Can you explain:
1) what generated the error message since
a. it wasn't my exception handler and
b. it wasn't the "WHEN OTHERS"
2) Why isn't my error handler working?
Please advise.
Thank you

Hello
Not sure why your exception is being ignored but usually, to be able to handle the UTL_FILE exceptions, you need to explicitly code for each exception declared in the UTL_FILE package i.e.
EXCEPTION
      WHEN utl_file.invalid_path THEN
             --Do something
      WHEN utl_file.invalid_mode THEN
             --Do something
      WHEN utl_file.invalid_filehandle THEN
             --Do something
      WHEN utl_file.invalid_operation THEN
             --Do something
      WHEN utl_file.read_error THEN
             --Do something
      WHEN utl_file.write_error THEN
             --Do something
      WHEN utl_file.internal_error THEN
             --Do something
END;HTH
David

3.2 to 4.1 Upgrade - Error Handling for Unavailable Database Links

Hi,
I'm having a 3.2 -> 4.1 upgrade issue related to error handling for failed database links.
I have a conditional Exists button on a page that has a SQL query to linked tables. However, for the 10 minutes every day where the target of the database link is getting a cold backup, the query fails. In the old 3.2 apex I simply got an error inside the region where the button is located but otherwise the page was still visible:
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However, in apex 4.1.0.00.32 I get the following unhandled error, and clicking "OK" takes me to the edit page when logged in as developer.
i.e., the page can't be run at all while the database links are failing in this one region.
Error Error processing condition.
ORA-12518: TNS:listener could not hand off client connection
Technical Info (only visible for developers):
is_internal_error: true
apex_error_code: APEX.CONDITION.UNHANDLED_ERROR
ora_sqlcode: -12518
ora_sqlerrm: ORA-12518: TNS:listener could not hand off client connection
component.type: APEX_APPLICATION_PAGE_REGIONS
component.id: 4
component.name: Current Alerts
error_backtrace:
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ORA-06512: at "APEX_040100.WWV_FLOW_DYNAMIC_EXEC", line 687
ORA-06512: at "APEX_040100.WWV_FLOW_CONDITIONS", line 272
General users see this:
Error Error processing condition.
ORA-01034: ORACLE not available ORA-02063: preceding line from MYDBLINK
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I've done a search and read the page http://www.inside-oracle-apex.com/apex-4-1-error-handling-improvements-part-1/ but the new apex error handling isn't clear to me, and I don't know if the apex_error_handling_example provided on that page would be applicable to this situation.

Thanks Patrick.
The PL/SQL Function Body returning boolean condition with:
begin
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      SELECT 1
       FROM myview@MYDBLINK
      WHERE ... ) loop
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    end loop;
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exception when others then
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end; Resulted in a similar issue:
Error Error processing condition.
ORA-04052: error occurred when looking up remote object MYLINKUSER.myview@MYDBLINK
ORA-00604: error occurred at recursive SQL level 3
ORA-01033: ORACLE initialization or shutdown in progress
ORA-02063: preceding line from MYDBLINK
Technical Info (only visible for developers)
is_internal_error: true
apex_error_code: APEX.CONDITION.UNHANDLED_ERROR
ora_sqlcode: -4052
ora_sqlerrm: ORA-04052: error occurred when looking up remote object MYLINKUSER.myview@MYDBLINK
ORA-00604: error occurred at recursive SQL level 3
ORA-01033: ORACLE initialization or shutdown in progress
ORA-02063: preceding line from MYDBLINK
component.type: APEX_APPLICATION_PAGE_REGIONS
component.id: 4
component.name: Current Alerts
error_backtrace:
ORA-06512: at "SYS.WWV_DBMS_SQL", line 904
ORA-06512: at "APEX_040100.WWV_FLOW_DYNAMIC_EXEC", line 588
ORA-06512: at "APEX_040100.WWV_FLOW_CONDITIONS", line 148However, I created a view with the same query:
CREATE OR REPLACE VIEW v_localview (ALERT_1)
AS
SELECT 1
FROM myview@MYDBLINK ...then change the condition to look at the local view:
begin
    for l_check in (
      select alert_1 from v_localview ) loop
        return true;
    end loop;
    return false;
exception when others then
    sys.htp.p('Invalid exists/not exists condition: ' || sys.htf.escape_sc(sqlerrm));
    return false;
end;As a view is simply a query I'm surprised this should make any difference but it now looks similar to the 3.2 error, inside the region, when the linked database gets its morning cold backup, and this is fine:
Invalid exists/not exists condition: ORA-12518: TNS:listener could not hand off client connection

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Error handling for RGB values

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I need to trigger a mail to SAP inbox whenever a outbound idoc fails for any reason.
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Do you want decide the recipient of the mail dynamically? am asking because if you give the USER NAME in the partner profile and when ever a IDOC fails a mail will automatically reach the user inbox automatically
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BillC,
Interesting that I was looking around for the same thing after seeing a Foreign Key violation in my application.
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Error handling function: ORA-20001: get_dbms_sql_cursor error:ORA-00942: table or view does not exist is not trapped. Why?

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hello
i m having a problem
i have two tables for my project with one of em master and the other a detail one
i m using developer 2000 for frontend
when i try inserting data in the forms developed i encounter an error frm-40508 which says "unable to insert record" the corresponding ora error is ora-02291 which says "integrity constraint violated - parent key not found"
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Hi,
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/The program reads 10 sets of catalogue data from the Mydata.txt file
//it prompts the user to use one of the 5 menu options displayed on the screen
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import java.lang.*;
import java .io.*;
import java.util.StringTokenizer;
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I think the problem is the "\M" in "C:\Mydata.txt". It is trying to make that into an escape character. Use "C:\\Mydata.txt" or "C:/Mydata.txt" instead.
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Hello,
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<removed by moderator>
Thanks&Regards,
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Edited by: Thomas Zloch on Feb 2, 2012

Hi Dear,
Your answer is very helpful, thanks..!!
But when i am testing with the EIKPF structure, neither error is populating in EIKPF nor the records are posting in MI10. Could you please guess what would be the problem?
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Damuan.

Error Handling for ORA-02291

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