ORA-29913-Error executing call, after migrating the database to Exadata - oracle

Question

I have a scheduler job which calls the procedure PR_DELETE_AUDIT_LOG. This code was working fine until the Oracle database was migrated to Exadata. Now whenever the job is executed we get the following errors as shown below.
ORA-29913: Error executing call
ORA-06512: in "ABC.PR_DELETE_AL_IMPORTLOG", AT LINE 49
ORA-06512: in "ABC.PR_DELETE_AL_IMPORTLOG", AT LINE 34
ORA-06512: in "ABC.PR_DELETE_AL_IMPORTLOG", AT LINE 34
The code for the job and the procedures are as follows.
DELETE_AL_IMPORTLOG_JOB
BEGIN
DBMS_SCHEDULER.CREATE_JOB (
job_name => 'ABC.DELETE_AL_IMPORTLOG_JOB',
job_type => 'STORED_PROCEDURE',
job_action => 'ABC.PR_DELETE_AL_IMPORTLOG',
number_of_arguments => 0,
start_date => NULL,
repeat_interval => 'FREQ=DAILY;BYTIME=000000',
end_date => NULL,
enabled => FALSE,
auto_drop => FALSE,
comments => '');
DBMS_SCHEDULER.SET_ATTRIBUTE(
name => 'ABC.DELETE_AL_IMPORTLOG_JOB',
attribute => 'store_output', value => TRUE);
DBMS_SCHEDULER.SET_ATTRIBUTE(
name => 'ABC.DELETE_AL_IMPORTLOG_JOB',
attribute => 'logging_level', value => DBMS_SCHEDULER.LOGGING_OFF);
DBMS_SCHEDULER.enable(
name => 'ABC.DELETE_AL_IMPORTLOG_JOB');
END;
/
PR_DELETE_AL_IMPORTLOG
CREATE OR REPLACE EDITIONABLE PROCEDURE "ABC"."PR_DELETE_AL_IMPORTLOG"
AS
V_DELETION_DATE DATE;
CURSOR CUR_OLD_FILES
IS SELECT FNAME
FROM EXT_TAB_AL_IMPORTLOG_FILE_LIST
WHERE REGEXP_LIKE(FNAME,'AL_\d{2}-\d{2}-\d{2}_\d{8}_\d{6}.txt')
AND TO_DATE(SUBSTR(FNAME, -19,15),'YYYYMMDD_HH24MISS') < V_DELETION_DATE;
BEGIN
SELECT ADD_MONTHS
( TRUNC
( SYSDATE
, DECODE( STARTZEITPUNKTABF
, 1 ,'DD'
, 2 ,'MM'
, 3 ,'Q'
, 4 ,'YY'
,'DD'
)
)
, DECODE(PERIODEABF,2,-DAUERABF,3,-DAUERABF*12,0)) - DECODE(PERIODEABF,1,DAUERABF,0)
INTO V_DELETION_DATE
FROM LOESCHREGEL
WHERE VERWENDUNGSZWECK_ID = 'CLALL';
FOR REC_OLD_FILES IN CUR_OLD_FILES
LOOP
UTL_FILE.FREMOVE('ABC_AL_IMPORTLOG', REC_OLD_FILES.FNAME);
dbms_output.put_line('Deleted file '||REC_OLD_FILES.FNAME);
END LOOP;
EXCEPTION
WHEN OTHERS
THEN
DECLARE
V_PROCEDURE_NAME VARCHAR2(30) := $$PLSQL_UNIT;
V_SUBJECT VARCHAR2(255) := 'Error on DB procedure '||V_PROCEDURE_NAME||' on '||to_char(sysdate,'dd.mm.yyyy hh24:mi:ss');
V_BODY VARCHAR2(10000) := 'Hi all,'||chr(10)||chr(10)||'Procedure '||V_PROCEDURE_NAME||' returned the following error:'||chr(10)||SQLERRM;
BEGIN
SEND_MAIL ( 'GENERIC_DB_ERROR', V_SUBJECT,V_BODY);
RAISE;
END;
END PR_DELETE_AL_IMPORTLOG;
/
DDL for Table EXT_TAB_AL_IMPORTLOG_FILE_LIST
CREATE TABLE ABC.EXT_TAB_AL_IMPORTLOG_FILE_LIST
( FNAME VARCHAR2(255 CHAR )
)
ORGANIZATION EXTERNAL
( TYPE ORACLE_LOADER
DEFAULT DIRECTORY COLEIN_AUDITLOG
ACCESS PARAMETERS
( RECORDS DELIMITED BY NEWLINE
PREPROCESSOR COLEIN_PROCESS:'AL_ImportLog_list_files.sh'
noLOGFILE
nobadfile
nodiscardfile
FIELDS TERMINATED BY WHITESPACE
)
LOCATION
( 'lsOutput.log'
)
)
REJECT LIMIT UNLIMITED ;
where is the problem?

Answer 1

The error seems to come from a value of ext_tab_al_importlog_file_list.fname that doesn't match the expected filename format. You might want to check the values to see which one is invalid and how it got there.
If you are using Oracle 12.2 or later, change the cursor to use an on conversion error clause:
select fname
from ext_tab_al_importlog_file_list
where regexp_like(fname, 'AL_\d{2}-\d{2}-\d{2}_\d{8}_\d{6}.txt')
and to_date(substr(fname, -19, 15) default null on conversion error, 'YYYYMMDD_HH24MISS') < v_deletion_date;
If not, you could try adding some more filters:
select fname
from ext_tab_al_importlog_file_list
where regexp_like(fname, 'AL_\d{2}-\d{2}-\d{2}_\d{8}_\d{6}.txt')
and to_date(substr(fname, -19, 15), 'YYYYMMDD_HH24MISS') < v_deletion_date
and to_number(substr(fname,-10,2)) < 24
and to_number(substr(fname,-8,2)) < 60
and to_number(substr(fname,-6,2)) < 60;
This worked in my quick test, but combining filters with a conversion function is risky because there is no guarantee that Oracle will apply the filtering conditions in any particular order.
You can find the invalid values using either of the following:
select fname
from ext_tab_al_importlog_file_list
where regexp_like(fname, 'AL_\d{2}-\d{2}-\d{2}_\d{8}_\d{6}.txt')
and to_date(substr(fname, -19, 15) default null on conversion error, 'YYYYMMDD_HH24MISS') is null;
select fname
from ext_tab_al_importlog_file_list
where regexp_like(fname, 'AL_\d{2}-\d{2}-\d{2}_\d{8}_\d{6}.txt')
and ( to_number(substr(fname,-10,2)) >= 24
or to_number(substr(fname,-8,2)) >= 60
or to_number(substr(fname,-6,2)) >= 60 );