Update process issue - having two reports on a page

Question

Hello,
I have a page which contains two reports (normal SQL query). And each report have some editable field items with an update button. The thing is that the update process is not working, its giving an error when any of the reports update button is clicked. I am not able to understand the problem. I think their might be a conflict between the two update processes when a page is submitted. Below are the report source queries and update processes. I think their is a problem with the code itself. Like when I click either of the update buttons, the process is failing and is going to the exception block and printing a message "Failed to update row at step 10 with error message "
. I have given different names for the two update buttons. Can anyone please help me out with this issue.
------REPORT1 SOURCE QUERY------
T_DS||T_SCH||T_TBL -- is my Primary key column of TBL_NAME1
select
apex_item.hidden(04,T_DS||T_SCH||T_TBL,'','f04_' || ROWNUM)
|| APEX_ITEM.MD5_HIDDEN(45,ASSIGNED_DA_SID,ASSIGNED_ARCH_SID,ASSIGNED_ETL_SID,CHF_CHANGE_HISTORY)
|| APEX_ITEM.HIDDEN(01,ROWNUM,'','f01_' || ROWNUM) " ",
T_SCHEMA,
T_TABLE,
T_DATASTORE,
APEX_item.textarea(12,T_COMMENTS,4,150) COMMENTS
APEX_item.textarea(13,CHANGE_HISTORY,4,150) CHANGE_HISTORY
from Tbl_name1
WHERE T_SCH = :P0_SCHEMA AND
T_DS = :P0_DATASTORE AND
T_TBL = :P0_TABLE
order by T_DS
-------UPDATE PROCESS OF REPORT1-----------
DECLARE
l_cnt BINARY_INTEGER := 0;
l_stp number := 10;
BEGIN
FOR i IN 1 .. apex_application.g_f01.COUNT
LOOP
     IF WWV_FLOW_ITEM.MD5(     APEX_APPLICATION.G_f12 (i)
,APEX_APPLICATION.G_f13 (i)
               ) <> APEX_APPLICATION.G_F45 (i) THEN
          UPDATE TBL_NAME1
          SET T_COMMENTS = APEX_APPLICATION.G_f12 (i)
,CHANGE_HISTORY = APEX_APPLICATION.G_f13 (i) WHERE T_DS||T_SCH||T_TBL = APEX_APPLICATION.G_f04 (i);
          l_cnt := l_cnt + SQL%ROWCOUNT;
     END IF;
END LOOP;
COMMIT;
l_stp := 20;
IF l_cnt = 0 THEN
     apex_application.g_print_success_message := 'No Modifications Done !' ;
ELSE
     apex_application.g_print_success_message := 'Successfully updated ' || l_cnt || ' record(s).';
END IF;
l_stp := 30;
EXCEPTION WHEN OTHERS THEN
     ROLLBACK;
     apex_application.g_print_success_message := 'Failed to update row at step ' || l_stp || ' with error message ' ;
END;
--------REPORT2 SOURCE QUERY---------
T_DS||T_SCH||T_TBL||T_RVW_TYPE||T_RVW_DT -- is my Primary key column of TBL_NAME2
select apex_item.hidden(07,T_DS||T_SCH||T_TBL||T_RVW_TYPE||T_RVW_DT,'','f07_' || ROWNUM)
|| APEX_ITEM.MD5_HIDDEN(46,T_RVW_STATUS,T_RVW_SUMM)
|| APEX_ITEM.HIDDEN(03,ROWNUM,'','f03_' || ROWNUM) " ",
APEX_item.text(22,T_RVW_STATUS,30) RVW_STATUS,
APEX_item.textarea(23,T_RVW_SUMM,4,150) RVW_SUMMARY
from TBL_NAME2
WHERE T_SCH = :P0_SCHEMA AND
T_DS = :P0_DATASTORE AND
T_TBL = :P0_TABLE
order by T_DS
--------UPDATE PROCESS OF REPORT2-----------------------
DECLARE
l_cnt BINARY_INTEGER := 0;
l_stp number := 10;
BEGIN
FOR i IN 1 .. apex_application.g_f03.COUNT
LOOP
     IF WWV_FLOW_ITEM.MD5(     APEX_APPLICATION.G_f22 (i)
                    ,APEX_APPLICATION.G_f23 (i)
               ) <> APEX_APPLICATION.G_F46 (i) THEN
          UPDATE TBL_NAME2
          SET     T_RVW_STATUS = APEX_APPLICATION.G_f22 (i)               
,T_RVW_SUMM = APEX_APPLICATION.G_f23 (i) WHERE T_DS||T_SCH||T_TBL||T_RVW_TYPE||T_RVW_DT = APEX_APPLICATION.G_f07 (i);
          l_cnt := l_cnt + SQL%ROWCOUNT;
     END IF;
END LOOP;
COMMIT;
l_stp := 20;
IF l_cnt = 0 THEN
     apex_application.g_print_success_message := 'No Modifications Done !' ;
ELSE
     apex_application.g_print_success_message := 'Successfully updated ' || l_cnt || ' record(s).';
END IF;
l_stp := 30;
EXCEPTION WHEN OTHERS THEN
     ROLLBACK;
     apex_application.g_print_success_message := 'Failed to update row at step ' ||l_stp || ' with error message ' ;
END;
Thanks,
Orton

Answer 1

Hi Orton,
to narrow down the source of your error i recommend using a process running before your two other page processes where you write debug-message to output to check how your array's are built up.
Your no-data-found error message comes most probably from accessing one of the g_fxx arrays on a index position without data. (e.g. if you access g_f04(5) and nothing ever was assigned to index 5 in array g_f04 you'll get an no-data-found exception).
brgds,
Peter
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