if i am reading a file with some 50000 records and moving to
a DB2 table and suddenly the program abends in between, is
there anyway i could restart from the exact record at which
the job failed once the program restarts.
- 2 Answers
- 7769 Views
- UST, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / raja
Yes . we can restart the job by using the restart. if it
abends in the middle, we can find the record by looking
into the SQLERROD3.
| Is This Answer Correct ? | 7 Yes | 1 No |
Answer / jai ho
You can use CHECK POINT-RESTART logic.That is nothing but increasing commit frequency .
LOGIC IS LIKE THIS
CHECKPOINT/RESTART Implementation:
STEP1: Create the CHECKPOINT-COMMIT record in the working storage section, to store the data, which is needed for the next unit of recovery.
STEP2: In the procedure division MAIN para: First check the restart status flag i.e. RESTART-IND of CHECKPOINT_RESTART table. If RESTART-IND = ?N? then if any output file existsopen output file in OUTPUT mode start the normal process end If RESTART-IND = ?Y? then Move the SAVE-AREA information to CHECKPOINT-COMMIT record if any output file exists do the FILE REPOSITION: Open the output file in INPUT mode. Repeatedly Read the output record and INSERT it into GLOBAL temp table FILE_POSITION_GTT Until the last unit of recovery write count. Close the output file. Open the output file in OUTPUT mode. open a cursor for a table FILE_POSITION_GTT repeatedly fetch a cursor and write the record information into the output file until end of cursor close a cursor end If input for the program is from cursor then skip the rows until COMMIT-KEY. If input for the program is from file then skip the records until COMMIT-KEY. End. Note: For more than one output files, delete GTT after repositioning each output file.
STEP3: Make a count for each Insert?s/Update?s/Deletes in RECORDS-PROCESSED-UOR variable.
STEP4: Go thro? the logic and find out the appropriate place where COMMIT WORK can be hosted. There check the frequency of COMMITS: IF RECORDS-PROCESSED-UOR > COMMIT-FREQ KEY (input) value of the programTO COMMIT-KEY MOVE checkpoint-commit record lengthTO SAVE-AREA-LEN MOVE checkpoint-commit recordTO SAVE-AREA-TEXT Update the CHECKPOINT_RESTART table with this information END-COMMIT
STEP5: Before STOP RUN statement; reset the RESTART flag of the CHECKPOINT_RESTART table. i.e. MOVE ?N? TO RESTART-IND Update the CHECKPOINT_RESTART table with the above information.
| Is This Answer Correct ? | 1 Yes | 0 No |
which is better comp or comp-3 in terms of memory utilization?
I have a sequential file of 100 records. How do I load the records into a two dimensional array ?
tell me about examine inspect and evaluate ?
I have put two write operations in a single para for two different conditions.Will that lead to an abend or run successfully and write two records?
I have a Flat file in which certain records are present in a tabular format. I need to extract some of the records on some basis from it and copy them into a flat file...how it can be done ??
where do u use low-value and high value in cobol
In an array processing what is the thing that can be done by using subscripts but not by using index
What happens in the background of spool when we submit a job for compilation and execution... This is a recent question in ibm...Kindly help me.....
hi is there any means of deletin a record from a ps usin cobol not using jcl?eg if i am reading a record and if some condition is matched tat particular record must be deletd fom the ps
) how do u code after getting data?
I have PS flat file with 14 records. I want to read from 4th to 9th record and want to write those 6 records (4th record to 9th record) to another PS file (output file). there is no key defined in the input file. I just want read a certain Consecutive records. can any one please give me the procedure division Coding for this. I have coded the below coding but the READ-PARA is performing only 1 time even though I have 14 records in my input file (i.e FILE-1): PROCEDURE DIVISION. A000-SECTION. MOVE 0 TO I. OPEN INPUT FILE-1. IF CHECK-KEY1 > 0 DISPLAY "OPEN ERROR FOR FILE-1, CODE IS:" CHECK-KEY1 END-IF. OPEN EXTEND NEWFILE-1 IF CHECK-KEY3 > 0 DISPLAY "OPEN ERROR FOR NEWFILE-1 COD IS" CHECK-KEY3 END-IF. PERFORM READ-PARA THRU EXIT-PARA UNTIL EOF-REC = 'YES'. DISPLAY " FINALLY OUT OF LOOP" CLOSE FILE-1 CLOSE NEWFILE-1 STOP RUN. READ-PARA. ADD 1 TO I READ FILE-1 AT END MOVE 'YES' TO EOF-REC IF I > 3 AND < 10 PERFORM WRITE-PARA ELSE DISPLAY "NOT IN RANGE" END-IF. EXIT-PARA. EXIT. WRITE-PARA. WRITE NEW-REC FROM FILE1-REC.
what is level 66 means??
COBOL 
