ORA-04091: table CCS.T_PROCESSLOG is mutating, trigger/function may not see it

I have a problem. Here is a trigger that I'm working with.
CREATE OR REPLACE TRIGGER Trgedw_extract
AFTER INSERT OR UPDATE OF completioncode ON CCS.t_processlog
FOR EACH ROW
WHEN ( (OLD.filename = 'ACCTINFO') AND (OLD.completioncode = 1) )
BEGIN
CCS.Edwextract;
END;The t_processlog table has a field (processid) that is the primary key. However the processid wasn't setup as a sequence number directly through Oracle. It was set up as a sequence number through a trigger. (Don't ask...)
The code for the procedure that the code above call is here.
CREATE OR REPLACE PROCEDURE Edwextract AS
Jobname: Edwextract
Author: Adam Bolduc
Date: 6/18/2001
Purpose: To run the monthly jobs (ccs.populateedw92, ccs.populateedw54) to
populate the t_edw table and export the data to a flat file on the system.
This file will be sent to edw. Then drop and recreate the index on the t_edw table
to access the data faster.
EDW92 EXCEPTION;
EDW54 EXCEPTION;
PUTLINE_ERROR EXCEPTION;
FILE_OPEN_ERROR EXCEPTION;
FILE_CLOSE_ERROR EXCEPTION;
DROP_INDEX_FLAG EXCEPTION;
CREATE_INDEX_FLAG EXCEPTION;
dPid ccs.t_processlog.PROCESSID%TYPE;
szdata_rec CHAR(1436);
outfile_name VARCHAR2(50) DEFAULT 'edw.txt';
outfile_dir VARCHAR2(100) DEFAULT '/scratch/edw/';
outfile_handle UTL_FILE.file_type;
szSQLErrText VARCHAR2(250);
iRetValue PLS_INTEGER;
icursor_name INTEGER;
irows_processed INTEGER;
dtDateProcess ccs.t_processlog.PROCESSDATE%TYPE;
CURSOR edw_extract_cur IS
SELECT
ccs.t_edw.RECORDIDENTIFIER| |
ccs.t_edw.TSYSVERSIONINDICATOR| |
ccs.t_edw.TS1CREDITRATING| |
ccs.t_edw.TS1BILLINGTYPE| |
ccs.t_edw.TS1PROCESSTYPE| |
ccs.t_edw.TS1BANKNUMBER| |
ccs.t_edw.TS1AGENTBANKNUMBER| |
ccs.t_edw.PRODUCTCODE| |
ccs.t_edw.CLIENTPRODUCTCODE| |
ccs.t_edw.TRACKINGNUMBER| |
ccs.edwaccountencrypt(ccs.t_edw.ACCOUNTNUMBER)| |
' '| |
ccs.t_edw.NAMEPRIMARY| |
ccs.t_edw.NAMECOAPP| |
ccs.t_edw.ADDRESSLINE1| |
ccs.t_edw.ADDRESSLINE2| |
ccs.t_edw.CITY| |
ccs.t_edw.STATEPROVINCECODE| |
ccs.t_edw.ZIPCODE| |
ccs.edwssnencrypt(ccs.t_edw.SSN)| |
ccs.t_edw.HOMEPHONENUMBER| |
ccs.t_edw.PHOTOCARDINDICATOR| |
ccs.t_edw.ACCOUNTTYPE| |
NVL(ccs.t_edw.InsuranceType , '000' )| |
ccs.t_edw.ASSETPOOLNUMBER| |
ccs.t_edw.STATEMENTHOLDCODE| |
ccs.t_edw.BRANCHNUMBER| |
ccs.t_edw.BANKRUPTCYPREDICTORSCORE| |
ccs.t_edw.DATELASTBANKRUPTCYRESCORE| |
NVL(ccs.t_edw.DATEOPEN,'0000000')| |
ccs.t_edw.DATEEXPIRATION| |
ccs.t_edw.DATECUSTOMERBIRTH| |
ccs.t_edw.DATECLOSEDVOLUNTARY| |
ccs.t_edw.DATECLOSEDINVOLUNTARY| |
ccs.t_edw.DATELASTACTIVE| |
ccs.t_edw.DATELASTPAYMENT| |
ccs.t_edw.DATELASTPURCHASE| |
ccs.t_edw.DATECHARGEOFF| |
NVL(ccs.t_edw.DateLastStatement , '0000000' )| |
ccs.t_edw.DATEHIGHESTBALANCELTD| |
ccs.t_edw.DATELASTCREDITLIMITCHANGE| |
ccs.t_edw.STATUSCLOSED| |
ccs.t_edw.STATUSCREDITREVOKED| |
ccs.t_edw.STATUSPASTDUE| |
ccs.t_edw.STATUSCHARGEOFF| |
NVL(ccs.t_edw.StatusSkipPayment , ' ' )| |
ccs.t_edw.CHARGEOFFTYPE| |
NVL(ccs.t_edw.MinimunPaymentDue , '000000000000000' )| |
ccs.t_edw.CURRENTBALANCE| |
NVL(ccs.t_edw.PreviousStatementBalance , '000000000000000' )| |
ccs.t_edw.BALANCECHARGEDOFF| |
ccs.t_edw.CURRENTCREDITLIMIT| |
ccs.t_edw.ORIGINALCREDITLIMIT| |
NVL(ccs.t_edw.BalancePastDueCycle , '000000000000000' )| |
ccs.t_edw.HIGHESTBALANCELTD| |
NVL(ccs.t_edw.AnnualFeeCharge , '000000000000000' )| |
ccs.t_edw.AVAILABLEMONEY| |
ccs.t_edw.NUMCREDITLIMITINCREASES| |
ccs.t_edw.NUMCREDITLIMITDECREASES| |
NVL(ccs.t_edw.APRPurchases , '000000' )| |
NVL(ccs.t_edw.APRCash , '000000' )| |
NVL(ccs.t_edw.APROldPurchases , '000000' )| |
ccs.t_edw.APRBALTRANSFER1| |
NVL(ccs.t_edw.APRPromoCash , '000000' )| |
NVL(ccs.t_edw.APRPromoPurchases , '000000' )| |
ccs.t_edw.APRBALTRANSFER2| |
NVL(ccs.t_edw.RateTypePurchases , ' ' )| |
NVL(ccs.t_edw.RateTypeCash , ' ' )| |
ccs.t_edw.RATETYPEOLDPURCHASES| |
ccs.t_edw.RATETYPEBALTRANSFER1| |
ccs.t_edw.RATETYPEPROMOCASH| |
ccs.t_edw.RATETYPEPROMOPURCHASES| |
ccs.t_edw.RATETYPEBALTRANSFER2| |
NVL(ccs.t_edw.ADBPurchases , '000000000000000' )| |
NVL(ccs.t_edw.ADBCash , '000000000000000' )| |
ccs.t_edw.ADBOLDPURCHASES| |
ccs.t_edw.ADBBALTRANSFER1| |
ccs.t_edw.ADBPROMOCASH| |
ccs.t_edw.ADBPROMOPURCHASES| |
ccs.t_edw.ADBBALTRANSFER2| |
ccs.t_edw.ASSESSEDFEEANNUAL| |
NVL(ccs.t_edw.AssessedFeeCash , '000000000000000' )| |
NVL(ccs.t_edw.AssessedFeeFinanceCharges, '000000000000000' )| |
NVL(ccs.t_edw.AssessedFeeInsurance , '000000000000000' )| |
NVL(ccs.t_edw.AssessedFeeLate , '000000000000000' )| |
NVL(ccs.t_edw.AssessedFeeOverlimit , '000000000000000' )| |
ccs.t_edw.ASSESSEDFEERETURNEDCHECK| |
NVL(ccs.t_edw.BilledTotalDollars , '000000000000000' )| |
NVL(ccs.t_edw.BilledPurchases , '000000000000000' )| |
NVL(ccs.t_edw.BilledCash , '000000000000000' )| |
ccs.t_edw.BILLEDOLDPURCHASES| |
ccs.t_edw.BILLEDBALTRANSFER1| |
ccs.t_edw.BILLEDPROMOCASH| |
ccs.t_edw.BILLEDPROMOPURCHASES| |
ccs.t_edw.BILLEDBALTRANSFER2| |
ccs.t_edw.BILLEDMISC| |
NVL(ccs.t_edw.BilledFinanceCharges , '000000000000000' )| |
NVL(ccs.t_edw.NewChargesPurchases , '000000000000000' )| |
NVL(ccs.t_edw.NewChargesCashAdvances , '000000000000000' )| |
ccs.t_edw.NEWCHARGESCONVCHECK| |
NVL(ccs.t_edw.NewChargesATM , '000000000000000' )| |
ccs.t_edw.NEWCHARGESBALXFERPURCH| |
ccs.t_edw.NEWCHARGESBALXFERCHECK| |
NVL(ccs.t_edw.NewChargesFinanceCharges , '000000000000000' )| |
NVL(ccs.t_edw.NewChargesCashFees , '000000000000000' )| |
NVL(ccs.t_edw.NewChargesInsuranceFees , '000000000000000' )| |
ccs.t_edw.NEWCHARGESRETURNEDCHECKS| |
NVL(ccs.t_edw.NewChargesOverlimitFees , '000000000000000' )| |
NVL(ccs.t_edw.NewChargesPurchaseFC , '000000000000000' )| |
NVL(ccs.t_edw.NewChargesCashFC , '000000000000000' )| |
NVL(ccs.t_edw.NewChargesAnnualFees , '000000000000000' )| |
NVL(ccs.t_edw.NewChargesLateFees , '000000000000000' )| |
NVL(ccs.t_edw.AmountOfPayments , '000000000000000' )| |
NVL(ccs.t_edw.AmountOfCredits , '000000000000000' )| |
NVL(ccs.t_edw.NumberOfPurchases , '00000' )| |
NVL(ccs.t_edw.NumberOfCashAdvances , '00000' )| |
ccs.t_edw.TS1COMPANYNUMBER| |
ccs.t_edw.COUNTRYCODE| |
' '| | -- MCIF Close code
ccs.t_edw.FILENUMBER| |
' '| |
' '| |
'00000'| |
' '| |
'000000000000000'| |
'0000000'| |
'00000'| |
' '| |
'000000000000000'| |
' '| |
' '| |
' '| |
' '| |
' '| |
' '| |
' '| |
' '| |
DECODE(ccs.t_account.prodind, 1, ' ', 'F')
FROM
ccs.t_edw,
ccs.t_account
WHERE ccs.t_edw.accountid = ccs.t_account.accountid
AND ccs.t_account.dateopen = to_date(ccs.t_edw.DATEOPEN,'yyyyddd')
AND ccs.t_account.dateopen < (add_months(dtDateProcess,1)-1);
BEGIN
SELECT max(processdate)
INTO dtDateProcess
FROM ccs.t_processlog
WHERE filename = 'ACCTINFO';
-- Create a log entry in the t_processlog
INSERT INTO ccs.t_processlog
(filename,processdate,completioncode)
VALUES
('EDWEXTRACT',dtDateProcess,9);
SELECT max(processid)
INTO dPid
FROM ccs.t_processlog
WHERE filename = 'EDWEXTRACT'
AND processdate = dtDateProcess;
iRetValue := CCS.StartPID(dPid, 0, 0);
ccs.populateedw92(1, dtDateProcess);
IF (SQLCODE != 0) THEN
iRetValue := CCS.UpdatePIDDesc(dPid, 1, 99, 'ccs.populateedw92 failed! See t_exception for error.',0);
RAISE EDW92;
END IF;
ccs.populateedw54(2, dtDateProcess);
IF (SQLCODE != 0) THEN
iRetValue := CCS.UpdatePIDDesc(dPid, 1, 99, 'ccs.populateedw54 failed! See t_exception for error.',0);
RAISE EDW54;
END IF;
OPEN edw_extract_cur;
-- Caution: UTL_FILE.FOPEN using w option! Will overwrite existing file!
outfile_handle := UTL_FILE.FOPEN(outfile_dir,outfile_name,'w',1437);
IF (SQLCODE != 0) THEN
iRetValue := CCS.UpdatePIDDesc(dPid, 1, 99, 'Problem creating data file! See t_exception for error.',0);
RAISE FILE_OPEN_ERROR;
END IF;
LOOP
FETCH edw_extract_cur INTO szdata_rec;
EXIT WHEN edw_extract_cur%NOTFOUND;
UTL_FILE.PUT_LINE(outfile_handle,szdata_rec);
IF (SQLCODE != 0) THEN
iRetValue := CCS.UpdatePIDDesc(dPid, 1, 99, 'Problem creating data file! See t_exception for error.',0);
RAISE PUTLINE_ERROR;
END IF;
END LOOP;
-- update t_processlog with status of 1 for dPid
UTL_FILE.FCLOSE (outfile_handle);
IF (SQLCODE != 0) THEN
iRetValue := CCS.UpdatePIDDesc(dPid, 1, 99, 'Problem closing data file! See t_exception for error.',0);
RAISE FILE_CLOSE_ERROR;
END IF;
-- Drop index on t_edw table
icursor_name := sys.dbms_sql.open_cursor;
sys.dbms_sql.parse(icursor_name,'DROP INDEX ccs.i_t_edw_accountid ', sys.dbms_sql.v7);
irows_processed := sys.dbms_sql.execute(icursor_name);
sys.dbms_sql.close_cursor(icursor_name);
IF (sqlcode != 0) THEN
RAISE DROP_INDEX_FLAG;
ELSE
COMMIT;
END IF;
-- Recreate index on t_edw table
icursor_name := sys.dbms_sql.open_cursor;
sys.dbms_sql.parse(icursor_name,'CREATE INDEX ccs.i_t_edw_accountid ON ccs.t_edw (accountid) tablespace tsindex storage (initial 30m next 30m pctincrease 0) parallel(degree 5) nologging', sys.dbms_sql.v7);
irows_processed := sys.dbms_sql.execute(icursor_name);
sys.dbms_sql.close_cursor(icursor_name);
IF (sqlcode != 0) THEN
RAISE CREATE_INDEX_FLAG;
ELSE
iRetValue := CCS.UpdatePIDDesc(dPid, 1, 1, 'EDWEXTRACT Completed successfully.',0);
COMMIT;
END IF;
EXCEPTION WHEN EDW54 THEN
szSQLErrText := SUBSTR(SQLERRM,1,250);
iRetValue := ccs.ExceptionWrite(dPid,szSQLErrText,'The populateedw54 failed! Contact support personnel.');
WHEN EDW92 THEN
szSQLErrText := SUBSTR(SQLERRM,1,250);
iRetValue := ccs.ExceptionWrite(dPid,szSQLErrText,'The populateedw92 failed! Contact support personnel.');
WHEN DROP_INDEX_FLAG THEN
szSQLErrText := SUBSTR(SQLERRM,1,250);
iRetValue := ccs.ExceptionWrite(dPid,szSQLErrText,'Failed to drop index on t_edw table! Contact support personnel.');
WHEN CREATE_INDEX_FLAG THEN
szSQLErrText := SUBSTR(SQLERRM,1,250);
iRetValue := ccs.ExceptionWrite(dPid,szSQLErrText,'Failed to create index on t_edw table! Contact support personnel.');
WHEN NO_DATA_FOUND THEN
szSQLErrText := SUBSTR(SQLERRM,1,250);
iRetValue := ccs.ExceptionWrite(dPid,szSQLErrText,'No data found! Contact support personnel.');
WHEN FILE_CLOSE_ERROR THEN
szSQLErrText := SUBSTR(SQLERRM,1,250);
iRetValue := ccs.ExceptionWrite(dPid,szSQLErrText,'Unable to close data file! Contact support personnel.');
WHEN PUTLINE_ERROR THEN
szSQLErrText := SUBSTR(SQLERRM,1,250);
iRetValue := ccs.ExceptionWrite(dPid,szSQLE rrText,'Failed to write szdata_rec to file! Contact support personnel.');
WHEN FILE_OPEN_ERROR THEN
szSQLErrText := SUBSTR(SQLERRM,1,250);
iRetValue := ccs.ExceptionWrite(dPid,szSQLErrText,'Failed to open data file! Contact support personnel.');
WHEN UTL_FILE.INVALID_PATH THEN
szSQLErrText := SUBSTR(SQLERRM,1,250);
iRetValue := ccs.ExceptionWrite(dPid,szSQLErrText,'Invalid path! Contact support personnel.');
WHEN UTL_FILE.INVALID_MODE THEN
szSQLErrText := SUBSTR(SQLERRM,1,250);
iRetValue := ccs.ExceptionWrite(dPid,szSQLErrText,'Invalid mode! Contact support personnel.');
WHEN UTL_FILE.INVALID_FILEHANDLE THEN
szSQLErrText := SUBSTR(SQLERRM,1,250);
iRetValue := ccs.ExceptionWrite(dPid,szSQLErrText,'Bad file handle! Contact support personnel.');
WHEN UTL_FILE.INVALID_OPERATION THEN
szSQLErrText := SUBSTR(SQLERRM,1,250);
iRetValue := ccs.ExceptionWrite(dPid,szSQLErrText,'Invalid operation! Contact support personnel.');
WHEN UTL_FILE.WRITE_ERROR THEN
szSQLErrText := SUBSTR(SQLERRM,1,250);
iRetValue := ccs.ExceptionWrite(dPid,szSQLErrText,'Unable to write to file, ERROR! Contact support personnel.');
WHEN UTL_FILE.INTERNAL_ERROR THEN
szSQLErrText := SUBSTR(SQLERRM,1,250);
iRetValue := ccs.ExceptionWrite(dPid,szSQLErrText,'Utl_file internal error! Contact support personnel.');
WHEN OTHERS THEN
szSQLErrText := SUBSTR(SQLERRM,1,250);
iRetValue := ccs.ExceptionWrite(dPid,szSQLErrText,'EDWEXTRACT failed due to unknown reason! Contact support personnel.');
END;
/I guess my confusion is how can I put a trigger on the t_processlog table to start a job when another finishes, and still have the job called make an entry into the t_processlog? I looked at the code for suggested work around, but I'm a little confused as to what is going on. Can anyone give me an idea for what to do in the situation? Thanks.
Adam Bolduc
null

I didn't see your coding but i think you are selecting the same table through the procedure, on which you have written the db trigger.
In that case it will alway gives you mutating error.
Sanjeev

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ORA-04091: table ... is mutating, trigger/function may not see it

Hi,
I keep getting this error message for my trigger when performing an
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CREATE OR REPLACE TRIGGER MYTABLE_BEF_INS_CHECK
BEFORE INSERT ON MYTABLE
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v_o_id number(10);
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SELECT 1
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The thing is the trigger works fine for a standard insert like:
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thx.

Hi,
OK OK !!!! This was a copy/paste error. FOR EACH ROW was just not pasted here. Full trigger again:
CREATE OR REPLACE TRIGGER MYTABLE_BEF_INS_CHECK
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DECLARE
v_o_id number(10);
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ORA-04091 table string.string is mutating, trigger/function may not see it

When I am tending to delete something from my table I received this message.
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ERROR at line 1:
ORA-04091: table POINT$_TABLE is mutating, trigger/functio
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ORA-04091: table ...is mutating, trigger/function may

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ORA-04088: error during execution of trigger 'MICRODEV.TG_DEL_T086_LIEN_INSC'
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CREATE OR REPLACE TRIGGER "MICRODEV"."TG_DEL_T086_LIEN_INSC"
BEFORE
DELETE ON "MICRODEV"."T086_LIEN_INSC" FOR EACH ROW DECLARE lNbRows NUMBER(1);
BEGIN
IF :OLD.CO_PART_DNOM_SOC = 'DS' THEN
SELECT 1 INTO lNbRows
FROM T086_LIEN_INSC
WHERE NO_SEQ_LIEN_DNOM = :OLD.NO_SEQ_LIEN_INSC
AND NO_INSC = :OLD.NO_INSC
AND CO_PART_DNOM_SOC <> 'PA';
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FROM T086_LIEN_INSC
WHERE NO_SEQ_LIEN_DNOM = :OLD.NO_SEQ_LIEN_INSC
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AND CO_PART_DNOM_SOC = 'PA';
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ORA-04091: table MICRODEV.T086_LIEN_INSC is mutating, trigger/function may not see it
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ORA-04088: error during execution of trigger 'MICRODEV.TG_DEL_T086_LIEN_INSC'
How Can I workaround it
CREATE OR REPLACE TRIGGER "MICRODEV"."TG_DEL_T086_LIEN_INSC"
BEFORE
DELETE ON "MICRODEV"."T086_LIEN_INSC" FOR EACH ROW DECLARE lNbRows NUMBER(1);
BEGIN
IF :OLD.CO_PART_DNOM_SOC = 'DS' THEN
SELECT 1 INTO lNbRows
FROM T086_LIEN_INSC
WHERE NO_SEQ_LIEN_DNOM = :OLD.NO_SEQ_LIEN_INSC
AND NO_INSC = :OLD.NO_INSC
AND CO_PART_DNOM_SOC <> 'PA';
IF lNbRows = 1 THEN
raise_application_error(-20100, 'TRIGGER On Delete (T086_LIEN_INSC)');
END IF;
SELECT 2 INTO lNbRows
FROM T086_LIEN_INSC
WHERE NO_SEQ_LIEN_DNOM = :OLD.NO_SEQ_LIEN_INSC
AND NO_INSC = :OLD.NO_INSC
AND CO_PART_DNOM_SOC = 'PA';
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END IF;
END IF;
END;

ORA-04091: table blah is mutating, trigger/function may not see it

ORA-04091: table blah is mutating, trigger/function may not see it
ORA-06512: at "AOLALERE.CHK_FOR_POST", line 7
ORA-06512: at "AOLALERE.CHK_FOR_POST", line 20
ORA-06512: at "AOLALERE.PREPRODDTA_F41021_AFTER_UPDATE", line 14
ORA-04088: error during execution of trigger 'AOLALERE.PREPRODDTA_F41021_AFTER_UPDATE'
TRIGGER preproddta_f41021_after_update
after insert or update
on preproddta.f41021
for each row
declare
--nothing to declare
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     l_lipqoh preproddta.f41021.lipqoh%type;
     l_lipcom preproddta.f41021.lipcom%type;
     l_lihcom preproddta.f41021.lihcom%type;
     l_lilots preproddta.f41021.lilots%type;
     l_lilocn preproddta.f41021.lilots%type;
     l_lilotn preproddta.f41021.lilots%type;
l_quantity_avail f41021_audit.quantity_avail%type;
     l_rec_chk f41021_audit.liitm%type;
begin
--chk_for_post(:new.limcu,:new.liitm);
--if :old.limcu <> '      GBD001' then return; end if;
if :old.lipqoh = :new.lipqoh then
l_lipqoh := :old.lipqoh;
else
l_lipqoh := :new.lipqoh;
end if;
if :old.lipcom = :new.lipcom then
l_lipcom := :old.lipcom;
else
l_lipcom := :new.lipcom;
end if;
if :old.lihcom = :new.lihcom then
l_lihcom := :old.lihcom;
else
l_lihcom := :new.lihcom;
end if;
if :old.lilots = :new.lilots then
l_lilots := :old.lilots;
else
l_lilots := :new.lilots;
end if;
if l_lilots <> ' ' then
l_quantity_avail := - (l_lipcom - l_lihcom);
else
l_quantity_avail := l_lipqoh - (l_lipcom + l_lihcom);
end if;
l_rec_chk := rec_chk(:old.limcu,:old.liitm,l_lilots);
if l_rec_chk is not null then
     begin
update f41021_audit
     set lipqoh = l_lipqoh,
     lipcom = l_lipcom,
lihcom = l_lihcom,
          quantity_avail = l_quantity_avail
     where limcu = :old.limcu
     and liitm = :old.liitm
     and lilotn = :old.lilotn
     and lilocn = :old.lilocn
     and lilots = l_lilots;
     end;
else
-- insert record into audit table
begin
insert into f41021_audit
(limcu,
                    liitm,
                              lipqoh,
                              lipcom,
                              lihcom,
                              lilots,
                                   lilotn,
                                   lilocn,
                                   quantity_avail)
values
(:old.limcu,
:old.liitm,
l_lipqoh,
                              l_lipcom,
                              l_lihcom,
                              l_lilots,
                                   :old.lilotn,
                                   :old.lilocn,
                                   l_quantity_avail);
     end;
end if;
end;
create or replace procedure chk_for_post(p_limcu in varchar2,
p_liitm in number)
is
cursor get_bra_qa(p_limcu in varchar2,
p_liitm in number)is
select liitm,
     (sum(lipqoh) - sum(lipcom + lihcom)) qual_avail
from preproddta.f41021 a, preproddta.f4101 b
where limcu = p_limcu
and liitm = imitm
and liitm = p_liitm
group by liitm,imdsc1;
l_bra_qa get_bra_qa%rowtype;
l_itm_bran_qa t_f41021_itm_bran_qa := t_f41021_itm_bran_qa.initialize(p_liitm);
begin
open get_bra_qa(p_limcu,p_liitm);
fetch get_bra_qa into l_bra_qa;
close get_bra_qa;
if l_itm_bran_qa.quantity_avail is null then ---This indicate that there is no record for
---quantity available for the item based on the branch .
l_itm_bran_qa := new t_f41021_itm_bran_qa(p_liitm);
     begin
     l_itm_bran_qa.liitm := p_liitm;
     l_itm_bran_qa.limcu := p_limcu;
     l_itm_bran_qa.quantity_avail := l_bra_qa.qual_avail;
     l_itm_bran_qa.add_it;
     commit;
     end;
else
l_itm_bran_qa := t_f41021_itm_bran_qa.initialize(p_liitm);
     if l_itm_bran_qa.quantity_avail = l_bra_qa.qual_avail then
     null; return;
     else
     begin
     l_itm_bran_qa.liitm := p_liitm;
     l_itm_bran_qa.limcu := p_limcu;
     l_itm_bran_qa.quantity_avail := l_bra_qa.qual_avail;
     l_itm_bran_qa.send_to_DB;
     commit;
     end;
     end if;
end if;
end;

Thanks,
I comment it out cos it was causing the problem this is the code:
The following error has occurred:
ORA-04091: table PREPRODDTA.F41021 is mutating, trigger/function may not see it
ORA-06512: at "AOLALERE.CHK_FOR_POST", line 7
ORA-06512: at "AOLALERE.CHK_FOR_POST", line 20
ORA-06512: at "AOLALERE.PREPRODDTA_F41021_AFTER_UPDATE", line 98
ORA-04088: error during execution of trigger 'AOLALERE.PREPRODDTA_F41021_AFTER_UPDATE'
TRIGGER preproddta_f41021_after_update
after insert or update
on preproddta.f41021
for each row
declare
--nothing to declare
     --pragma autonomous_transaction;
     l_lipqoh preproddta.f41021.lipqoh%type;
     l_lipcom preproddta.f41021.lipcom%type;
     l_lihcom preproddta.f41021.lihcom%type;
     l_lilots preproddta.f41021.lilots%type;
     l_lilocn preproddta.f41021.lilots%type;
     l_lilotn preproddta.f41021.lilots%type;
l_quantity_avail f41021_audit.quantity_avail%type;
     l_rec_chk f41021_audit.liitm%type;
begin
--if :old.limcu <> '      GBD001' then return; end if;
if :old.lipqoh = :new.lipqoh then
l_lipqoh := :old.lipqoh;
else
l_lipqoh := :new.lipqoh;
end if;
if :old.lipcom = :new.lipcom then
l_lipcom := :old.lipcom;
else
l_lipcom := :new.lipcom;
end if;
if :old.lihcom = :new.lihcom then
l_lihcom := :old.lihcom;
else
l_lihcom := :new.lihcom;
end if;
if :old.lilots = :new.lilots then
l_lilots := :old.lilots;
else
l_lilots := :new.lilots;
end if;
if l_lilots <> ' ' then
l_quantity_avail := - (l_lipcom - l_lihcom);
else
l_quantity_avail := l_lipqoh - (l_lipcom + l_lihcom);
end if;
l_rec_chk := rec_chk(:old.limcu,:old.liitm,l_lilots);
if l_rec_chk is not null then
     begin
update f41021_audit
     set lipqoh = l_lipqoh,
     lipcom = l_lipcom,
lihcom = l_lihcom,
          quantity_avail = l_quantity_avail
     where limcu = :old.limcu
     and liitm = :old.liitm
     and lilotn = :old.lilotn
     and lilocn = :old.lilocn
     and lilots = l_lilots;
     end;
else
-- insert record into audit table
begin
insert into f41021_audit
(limcu,
                    liitm,
                              lipqoh,
                              lipcom,
                              lihcom,
                              lilots,
                                   lilotn,
                                   lilocn,
                                   quantity_avail)
values
(:old.limcu,
:old.liitm,
l_lipqoh,
                              l_lipcom,
                              l_lihcom,
                              l_lilots,
                                   :old.lilotn,
                                   :old.lilocn,
                                   l_quantity_avail);
     end;
end if;
chk_for_post(:new.limcu,:new.liitm);
return;
end;
create or replace procedure chk_for_post(p_limcu in varchar2,
p_liitm in number)
is
cursor get_bra_qa(p_limcu in varchar2,
p_liitm in number)is
select liitm,
(sum(lipqoh) - sum(lipcom + lihcom)) qual_avail
from preproddta.f41021 a, preproddta.f4101 b
where limcu = p_limcu
and liitm = imitm
and liitm = p_liitm
group by liitm,imdsc1;
l_bra_qa get_bra_qa%rowtype;
l_itm_bran_qa t_f41021_itm_bran_qa := t_f41021_itm_bran_qa.initialize(p_liitm);
begin
open get_bra_qa(p_limcu,p_liitm);
fetch get_bra_qa into l_bra_qa;
close get_bra_qa;
if l_itm_bran_qa.quantity_avail is null then ---This indicate that there is no record for
---quantity available for the item based on the branch .
l_itm_bran_qa := new t_f41021_itm_bran_qa(p_liitm);
begin
l_itm_bran_qa.liitm := p_liitm;
l_itm_bran_qa.limcu := p_limcu;
l_itm_bran_qa.quantity_avail := l_bra_qa.qual_avail;
l_itm_bran_qa.add_it;
commit;
end;
else
l_itm_bran_qa := t_f41021_itm_bran_qa.initialize(p_liitm);
if l_itm_bran_qa.quantity_avail = l_bra_qa.qual_avail then
null; return;
else
begin
l_itm_bran_qa.liitm := p_liitm;
l_itm_bran_qa.limcu := p_limcu;
l_itm_bran_qa.quantity_avail := l_bra_qa.qual_avail;
l_itm_bran_qa.send_to_DB;
commit;
end;
end if;
end if;
end;
Please sugesst any work around. I need to call calculate changes based on the insert or updates

ORA-04091: is mutating, trigger/function may not see

I am getting this error
ORA-04091: table SATURN.SARQUAN is mutating, trigger/function may not see it
ORA-06512: at "BANINST1.F_GETSARQUANSEQNO", line 24
ORA-06512: at "BANINST1.F_GETSARQUANSEQNO", line 30
I am trying to do this insert
INSERT INTO sarquan
                        (sarquan_pidm,sarquan_term_code_entry,sarquan_seqno,
                         sarquan_appl_no, sarquan_question,
                         sarquan_answer, sarquan_activity_date,
                         sarquan_user_id
                SELECT spriden_pidm,'201090',BANINST1.F_GETSARQUANSEQNO(spriden_pidm,'201090','1'),'1',
                 'Would you prefer September admission?',
                DECODE (szcasup_sept_adm, 'Y', 'Yes', 'N', 'No'),sysdate,'rmanoei'
           FROM saturn_midd.szcasup, saturn.spriden
          WHERE spriden_id = szcasup_common_appl_id
            AND spriden_ntyp_code = 'CAPP'
            AND (   szcasup_sept_adm IS NOT NULL
                 OR szcasup_feb_adm IS NOT NULL
                 OR szcasup_interview IS NOT NULL
            AND NOT EXISTS (
                   SELECT *
                     FROM sarquan
                    WHERE sarquan_pidm = spriden_pidm
                      AND spriden_ntyp_code = 'CAPP'
                      AND sarquan_term_code_entry = '201090');
                      I got data when I ran just the select statement, none of the records have data in the sarquan table.
I got data when I select from this function
,BANINST1.F_GETSARQUANSEQNO(spriden_pidm,'201090','1'),'1'
Any ideas?
Edited by: peace4all on Aug 12, 2009 4:49 PM

I can not drop the trigger, I don't own the trigger, it is in production, SARQUAN is a production table
Now I am getting this error ORA-04091: table SATURN.SARQUAN is mutating, trigger/function may not see it
ORA-06512: at "BANINST1.F_GETSARQUANSEQNO", line 24
ORA-06512: at "BANINST1.F_GETSARQUANSEQNO", line 30
ORA-06512: at "SATURN.ST_SARQUAN_INSERT_ROW", line 2
ORA-04088: error during execution of trigger 'SATURN.ST_SARQUAN_INSERT_ROW'
when I do the following
I know that this pidm does not have any records in the table SARQUAN
spriden_pidm = 2287953
So I try to do a simple insert, not using the function, now I am hardcoding the seq, I know it needs to be 1 since there are not records in that table yet,
the sequence go by pidm
INSERT INTO saturn.sarquan
                 sarquan_pidm,
                 sarquan_seqno,
                 sarquan_term_code_entry,
                 sarquan_appl_no,
                  sarquan_question,
                 sarquan_answer,
                 sarquan_activity_date,
                 sarquan_user_id
SELECT spriden_pidm,'1',
'201090','1',
                 'Would you prefer September admission?',
                DECODE (szcasup_sept_adm, 'Y', 'Yes', 'N', 'No'),sysdate,'recheverri'
           FROM saturn_midd.szcasup, saturn.spriden
          WHERE spriden_id = szcasup_common_appl_id
            AND spriden_ntyp_code = 'CAPP'
             and spriden_pidm = 2287953
            AND (   szcasup_sept_adm IS NOT NULL
                 OR szcasup_feb_adm IS NOT NULL
                 OR szcasup_interview IS NOT NULL
            AND NOT EXISTS (
                   SELECT *
                     FROM saturn.sarquan
                    WHERE sarquan_pidm = spriden_pidm
                      AND spriden_ntyp_code = 'CAPP'
                      AND sarquan_term_code_entry = '201090');
                      Edited by: peace4all on Aug 13, 2009 5:35 AM

ORA-04091: table AM is mutating, trigger/function may not see it

I create this trigger:
CREATE OR REPLACE TRIGGER pr_test
after insert ON AM
FOR EACH ROW
declare
appo_pr varchar2(64):= null;
BEGIN
select name
into appo_pr
from AS
where AS_ID=:new.AS_ID;
insert into AM (name) values (appo_pr);
END pr_test;
I insert before a new AS_ID and name in tab AS but when I insert a new record in tab AM I get this error:
ORA-04091: table AM is mutating, trigger/function may not see it
ORA-06512: at PR_TEST", line 11
ORA-04088: error during execution of trigger PR_TEST'
I'd like to create a trigger that when I insert a new record in AM It verify the value in col name of AS and insert this value in col name of AM.
What I wrong in this trigger??
How can I modify it??
Thanks
Raf

Try this:
CREATE OR REPLACE TRIGGER pr_test
before insert ON AM
FOR EACH ROW
declare
appo_pr AS.name%TYPE;
BEGIN
select name
into appo_pr
from AS
where AS_ID = :new.AS_ID;
:new.name = appo_pr;
END pr_test;

ORA-04091:table XYZ is mutating,trigger/function may not see it ORA-06512

Hi everybody
i am facing mutating problem during data deletion fron XYZ table as
ORA-04091:table XYZ is mutating,trigger/function may not see it ORA-06512 at "user.procdure_name",line 39 ORA-065
i have table XYZ and have database trigger on this table
and also have procedure "user.abc" in this procedure m selecting data from xyz table

You didn't post the actual code. I was more interested in seeing table name and the trigger body.
Anyways, mutation problem comes when you refer the same table on the trigger, on which it is based for some data manipulation on that table.
For e.g, If inside your trigger body, you are doing INSERT on the same table, then it'll definitely result in mutation problem because this trigger will be fired endlessly (as it is after insert trigger).
Please mark answer as helpful / correct, if it helps you
Navnit

ORA-04091: table ACCESSLOG is mutating, trigger/function may not see it

Hi
Got the following error
ORA-04091: table ACCESSLOG is mutating, trigger/function may not see it
i searched the error found that the problem is with FOR EACH ROW
how can i handel this specifically with the following code:
CREATE OR REPLACE TRIGGER EMP_ACCESS
AFTER INSERT
ON ACCESSLOG
REFERENCING NEW AS NEW OLD AS OLD
FOR EACH ROW
DECLARE
tmpVar NUMBER;
BEGIN
IF ( :NEW.INOUT = 'OUT' ) THEN
SELECT 'X'
INTO tmpVar
FROM ACCESSLOG
WHERE EMPLOYEEID = :NEW.EMPLOYEEID
AND LOGDATE = :NEW.LOGDATE
AND INOUT ='IN' ;
IF tmpVar IS NULL THEN
INSERT INTO Emp_All_Moves_Absent (
EMP_NO,
ATT_DATE,
ATT_FLAG,
ATT_TIME_IN,
ATT_TIME_OUT,
VAC_COD,
MIS_CODE,
DAY_FLAG ,
POSTEDFLAG,
ATT_TIME_IN_PLANNED,ATT_TIME_OUT_PLANNED)
VALUES
(to_number(to_char(:NEW.employeeid,99999)),
TO_DATE(:NEW.LOGDATE,'DD/MM/YYYY'),
'ABS' ,
to_date(:NEW.LOGTIME,'HH24:MI:SS'),
to_date(:NEW.LOGTIME,'HH24:MI:SS'),
NULL,
NULL,
'WORK',
0,
NULL,NULL);
END IF;
ELSIF ( :NEW.INOUT = 'IN' ) THEN
SELECT 'X'
INTO tmpVar
FROM ACCESSLOG
WHERE EMPLOYEEID = :NEW.EMPLOYEEID
AND LOGDATE = :NEW.LOGDATE-1
AND INOUT ='IN' ;
IF tmpVar IS NULL THEN
INSERT INTO Emp_All_Moves_Absent (
EMP_NO,
ATT_DATE,
ATT_FLAG,
ATT_TIME_IN,
ATT_TIME_OUT,
VAC_COD,
MIS_CODE,
DAY_FLAG ,
POSTEDFLAG,
ATT_TIME_IN_PLANNED,ATT_TIME_OUT_PLANNED)
VALUES
(to_number(to_char(:NEW.employeeid,99999)),
TO_DATE(:NEW.LOGDATE-1,'DD/MM/YYYY'),
'ABS' ,
to_date(:NEW.LOGTIME,'HH24:MI:SS'),
to_date(:NEW.LOGTIME,'HH24:MI:SS'),
NULL,
NULL,
'WORK',
0,
NULL,NULL);
END IF;
END IF;
EXCEPTION
WHEN OTHERS THEN
-- Consider logging the error and then re-raise
RAISE;
END EMP_ACCESS_LOG_OUT;
Urgent help is highly appreciated..
Regards,
Abdetu..

Thanks Jens Petersen for reply
now i want to make sure of one thing that i have to follow the steps but the last one i will replace it with my trigger NO?
SQL> create or replace package state_pkg
2 as
3 type ridArray is table of rowid index by binary_integer;
4
4 newRows ridArray;
5 empty ridArray;
6 end;
7 /
Package created.
SQL> create or replace trigger parent_bi
2 before insert or update on parent
3 begin
4 state_pkg.newRows := state_pkg.empty;
5 end;
6 /
Trigger created.
SQL> create or replace trigger parent_aifer
2 after insert or update of status on parent for each row
3 begin
4 state_pkg.newRows( state_pkg.newRows.count+1 ) := :new.rowid;
5 end;
6 /
Trigger created.
---------------------now come my trigger instead of the following one ??---------------
SQL> create or replace trigger parent_ai
2 after insert or update of status on parent
3 begin
4 for i in 1 .. state_pkg.newRows.count loop
5 insert into log_table
6 select theKey, status, effDate
7 from parent where rowid = state_pkg.newRows(i);
8 end loop;
9 end;
10 /
Trigger created.
Regards,
Abdetu..

ORA-04091: table name is mutating, trigger/function may not see it

Hi,
I have a row level before update trigger written on a table A which calls a procedure to undergo some processing. Procedure has some select queries against table A and it inturn causes the following error.
ORA-04091: table name is mutating, trigger/function may not see it
To overcome this I have used a combination of PL/SQL collection types (nested tables based on the following definition TYPE t_table_a is table of A.colname%TYPE index by binary_integer;), a row level before update trigger and statement level after update trigger. The mutating problem is fixed, but to update one row of data it took around 3 min and I am wondering if its the problem with PL/SQL tables I have used.
In before update trigger I am storing the unique id's which needs to be updated into the PL/SQL table and in the after update trigger I am looping through the PL/SQL table and peforming the rest of the processing by calling in the procedure.
Can anyone help how to minimize the run time of this process or if any other better solution exists?
Thanks for the help

Triggers raise the mutating table issue, because else they could be used to create endless loops. If you work around the mutating table issue, then you should make sure not to create an endless loop yourself. This would be possible.
You description also seems to imply something like this.
Without code it is impossible to say something specific.
- Do you initialize your collection in a before statement trigger?
- Is your looping mechanism somehow broken?
- Do you update the same table again and again and again?

ORA-04091: table is mutating, trigger/function may not see

Hello All,
I am not an expert in oracle and I have been facing a problem where I get a message as follows :
ORA-04091: table <table> is mutating, trigger/function may not see it
I have a table tab1 which has ID, name, and some other columns. the rows in this table form a parent-child type relationship based on some columns within that table. I have created another table called relationship table. The relationship table has 2 columns ID and parentID. I keep this table up to date using triggers. For example if a new record is inserted or upadted in tab1 which affects the parent - child relationship, i update the relationship table accordingly using an insert / update trigger and it works fine.
I created another trigger as follows
create or replace trigger MY_DELETE_TRIGGER
after delete on tab1
for each row
BEGIN
update relationships a set a.parentID = null where a.parentID = :OLD.ID;
delete from relationships a where a.id = :OLD.ID;
END MY_DELETE_TRIGGER;
Basically what I am doing is, the record once deleted, if it was parent of anybody else, i am setting the parent as null and the record itself, if it was in the relationships as a child, I am removing that row.
This is when I get the table is mutating error, and I don't know how to fix it.
Can anybody please help me,
Thanks in advance

Could you provide more details?
SQL> select * from tab1;
        ID NAME
         1 test1
         2 test2
SQL> select * from relationships;
        ID   PARENTID
         1          1
         2          1
SQL> create or replace trigger MY_DELETE_TRIGGER
2 after delete on tab1
3 for each row
4 BEGIN
5 update relationships a set a.parentID = null where a.parentID = :OLD.ID;
6 delete from relationships a where a.id = :OLD.ID;
7 END MY_DELETE_TRIGGER;
8 /
Trigger created.
SQL> delete from tab1
2 where id = 1;
1 row deleted.
SQL> select * from relationships;
        ID   PARENTID
         2
SQL> rollback;
Rollback complete.
SQL> insert into relationships values(1,1);
1 row created.
SQL> select * from relationships;
        ID   PARENTID
         1          1
         2          1
         1          1
SQL> delete from tab1
2 where id = 1;
1 row deleted.
SQL> select * from relationships;
        ID   PARENTID
         2
SQL> disconnect
Disconnected from Oracle9i Enterprise Edition Release 9.2.0.3.0 - 64bit Production
With the Partitioning option
JServer Release 9.2.0.3.0 - Production

Table is mutating, trigger/function may not see it

Hi,
I have been trying to get a trigger to execute a stored procedure when an update is made to a row in a table.
The procedure works when ran manually and the trigger compiles but when the trigger is fired I get a "table is mutating, trigger/function may not see it" error.
Here's a bit more background:
I have a product table where the cost of a product is calculate based on costs in other tables (e.g. cost of raw materials is in the suppliesrawmat table).
I have written a procedure (called proc_costcalc) which takes in a productID and updates that product's cost in the product table.
I want a trigger to do this for every affected product when a rawmaterial cost is changed.
The code of my trigger is:
CREATE OR REPLACE trigger trig_rawcostupdate
AFTER INSERT OR UPDATE ON suppliesrawmat FOR EACH ROW
DECLARE
     cursor c1 is
     SELECT p.prodid
     FROM process p,
          (SELECT s.processid
          FROM stage s,
               (SELECT stageno
               FROM stagerawmat
               WHERE prodid = :new.prodid) subquery0
          WHERE s.stageno = subquery0.stageno) subquery1
     WHERE p.processid = subquery1.processid;
BEGIN
     FOR tuple in c1
     LOOP
          proc_costcalc(tuple.prodid);
     END LOOP;
END;
The query for the cursor generates a list of productIDs which I need to run through the proc_costcalc procedure.
Can anyone show me where I am going wrong? How can I fix this?
Thanks
Keith

I'm afraid I'm still not getting this.
Suppose I have 4 tables (product, madefrom, rawmat and suppliesrawmat).
Product (productid, cost)
Madefrom (productid, rawmatid)
Rawmat (rawmatid)
Suppliesrawmat (supplierid, rawmatid, cost)
The cost of a product should be the sum cost of all rawmaterials it is made from where the cheapest supply cost of that material is used.
What I want to do is update the cost of a product when the cost of a raw material used in its production changes.
My earlier attempt was to have a procedure which when given a productid updates the price of that product. However, when trying to call this procedure from an update on the suppliesrawmat table I recieved the table is mutating error. I now understand why (thanks to everyone for that) but I still don't really know how to rectify the problem.
How should I be doing this?
Thanks again
Keith

ORA-04091: table POSTAL_ADDRESS is mutating, trigger/function may not see it

First off, there are NO TRIGGERS defined on the table in question in our database.
The process we need to accomplish is as follows:
1. Load addresses from the table.
2. Send the addresses through a standardization routine.
3. Multi-Insert any address that was successfully standardized and is not already present.
So how do I tell ODI 12c to create a temporary table before doing the multi-insert? So far everything I've tried gets "flattened" and results in the same error.
OR
Is there a different solution?
Thanks for your help,
Scott

I fixed this by creating a second Physical+Logical+Model to the same database (not sure if I needed all three but did it this way to make sure). This caused ODI to generate a SOURCE_GROUP and TARGET_GROUP instead of just a TARGET_GROUP in the physical view. Then all I had to do is on the properties of the first item in the target, set the properties on the LKM Oracle to Oracle Pull (DB Link).GLOBAL to whichever option I wanted (USE_STAGE_TABLE or SELECT_FROM_SOURCE_VIEW). One thing to do is put the database's own SID in the SOURCE_ACCESS_DB_LINK so it doesn't create an unnecessary DB Link.
Hope that helps someone else!

How to get around ora-ORA-04091: table SSBOSS.SSTRMAST is mutating, trigger

hi,
Does anyone know how one would get around this problem please ?
Here is my dbase trig:
CREATE OR REPLACE TRIGGER SSBOSS.new_not_greater_than_net
BEFORE INSERT OR UPDATE OF newrent ON SSBOSS.SSTRMAST
REFERENCING NEW AS new OLD AS old
FOR each row
DECLARE
not_permitted EXCEPTION;
vnum number := ssboss.nik_f;
BEGIN
IF :new.NEWRENT > vnum then
--AND :old.DELETED = 'N' THEN
RAISE not_permitted;
END IF;
EXCEPTION
WHEN not_permitted THEN
RAISE_APPLICATION_ERROR
(-20001, 'NEWRENT:'||:new.newrent||' '||'OLDRENT:'||' '||:old.netrent||'Action not permitted. Contribution (sstrmast.newrent) value '
||:new.NEWRENT
||' exceeds GROSS rental value (sstrmast.netrent) ');
END;
Here is my problem:
SQL> update sstrmast set newrent = 11;
update sstrmast set newrent = 11
ERROR at line 1:
ORA-04091: table SSBOSS.SSTRMAST is mutating, trigger/function may not see it
ORA-06512: at "SSBOSS.NIK_F", line 4
ORA-06512: at "SSBOSS.NEW_NOT_GREATER_THAN_NET", line 4
ORA-04088: error during execution of trigger 'SSBOSS.NEW_NOT_GREATER_THAN_NET'
I understand why but not how to correct?
Thanks,
nikolia.

Hello,
This problem as you might be knowing occurs when you try to select the data from the same table on which the trigger is written. Also this problem is only with the row level trigger and not with the statement level trigger. However the limitation of the statement level trigger is it can not refer to :NEW or :OLD. So now the solution is to capture the value of :NEW or :OLD in the row level trigger (no select statement here) and store it in some global variable. And how do you get the global variable? Using package specification ! a variable declared in a package specification is global in nature. Then use the value so stored in the statement level trigger in the select statement. It will work. Other solution is to use pragma autonomous transaction. Try and let us know. All the best.
Regards

ORA-04091 (table string.string is mutating) and Function-Based Index

I've encountered a problem with DELETEing from a table when that table has a function-based index on it. The following demonstrates this:
SQL> CREATE OR REPLACE FUNCTION get_employee_location(p_empno IN number)
2 RETURN varchar2
3 DETERMINISTIC
4 IS
5 l_return_value   varchar2(20);
6 BEGIN
7 SELECT loc
8 INTO   l_return_value
9 FROM   dept
10 WHERE deptno = (SELECT
11                   e.deptno
12                   FROM emp e
13                   WHERE empno = p_empno);
14 return l_return_value;
15 end;
16 /
Function created.
SQL> create index location_idx on emp (get_employee_location(empno));
Index created.
SQL> delete from emp;
delete from emp
ERROR at line 1:
ORA-04091: table SCOTT.EMP is mutating, trigger/function may not see it
ORA-06512: at "SCOTT.GET_EMPLOYEE_LOCATION", line 7------------------------------------------------
The question is: How can I successfully DELETE FROM emp but keep my function-based index in place?
Thanks
Andy

'Being able to' is 'being able to', but
it is dangerous to declare "DETERMINISTIC" for non-deterministic function.
The following problem happens on non-deterministic function index.
SQL> update dept set loc = 'NEWYORK' where deptno=10;
1 row updated.
SQL> commit;
Commit complete.
SQL> select * from emp where get_employee_location(deptno)='NEWYORK';
no rows selected
SQL> select * from dept;
    DEPTNO DNAME          LOC
        10 ACCOUNTING     NEWYORK
        20 RESEARCH       DALLAS
        30 SALES          CHICAGO
        40 OPERATIONS     BOSTON
SQL> select empno,ename from emp where get_employee_location(deptno)='NEW YORK';
     EMPNO ENAME
      7782 CLARK
      7839 KING
      7934 MILLER
SQL> select empno,ename,get_employee_location(deptno) from emp where deptno=10;
     EMPNO ENAME      GET_EMPLOYEE_LOCATION(DEPTNO)
      7782 CLARK
      7839 KING
      7934 MILLER
SQL> select empno,ename,get_employee_location(deptno) from emp where get_employee_location(deptno)='NEW YORK';
     EMPNO ENAME      GET_EMPLOYEE_LOCATION(DEPTNO)
      7782 CLARK      NEW YORK
      7839 KING       NEW YORK
      7934 MILLER     NEW YORK
SQL> drop index location_idx ;
Index dropped.
SQL> select empno,ename from emp where get_employee_location(deptno)='NEW YORK';
no rows selected

ORA-04091: table CCS.T_PROCESSLOG is mutating, trigger/function may not see it

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