Answer / ram

Check point is a DB background processor. In DB buffer
cache, there are data blocks. with in the Data blocks many
modified data will be stored. Those modified bulk datas will
be returned to HD [ sapdata's ]. This process is done when
chkpt signals..

Answer / madhu

Checkpoint is the point in time when the db process checks
for the database consistency. The point at which recovery
can be done.... to bring database in consistent state

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