What is the syncpoint and its use?

Answer Posted / tej

At the beginning and end of each unit of work, you would do a
syncpoint and a commit which would marking the beginning and
end of each UoW. During the processing of a UoW, if something
wrong happens, then you would issue a ROLLBACK saying none of
the updates that have taken place in this UoW have to happen
because something has gone wrong. If everything goes fine,
then you would COMMIT the changes.
Now, for CICS to identify the beginning of each UoW, you
would issue a SYNCPOINT at which point it would take a backup
of all resources to which it can rollback in the event a
ROLLBACK command has been issued.

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