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What are two reasons to run the DB Batch backout utility?
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Answer / mahesh vasudevan
When the DL/I job abends then it might leave an update that
could be partial...and hence it requires a backout to the
last commit point. To undo the partial update the batch
backout utility is run so that you get a valid checkpoint
from which the job can be restarted with proper parameters
and log tapes.
| Is This Answer Correct ? | 2 Yes | 1 No |
Answer / jak
1)The utility is used to recover databases to a point before
a program was initiated, or to a checkpoint or sync point.
2)It backs out all updates for all DL/1 data sets performed
in that time period.
That why for batch backout utility we need the job name,PSB.
It is run as a normal IMS batch job and uses the program
specification block (PSB) of the program whose
updates are to be backed out.
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / jak
1)The utility is used to recover databases to a point before
a program was initiated, or to a checkpoint or sync point.
2)It backs out all updates for all DL/1 data sets performed
in that time period.
That why for batch backout utility we need the job name,PSB.
It is run as a normal IMS batch job and uses the program
specification block (PSB) of the program whose
updates are to be backed out.
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / s
To backout the changes made by the failed job, DBRC=Y
To backout the changed made by a successful job, DBRC=C
| Is This Answer Correct ? | 2 Yes | 2 No |
Hi all..., Nowadays many of the companies asking for IMS/DB , actually i hav learned mainframes but i dont have any knowledge on IMS/DB. it will be a great help if any one suggest me whr i can learn it ( in any institute).
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Write the format of program starting from identification division for checkpoint restart logic.
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