Answer Posted / kamal pratap singh
A checkpoint is where all committed transactions are written
to the redo/audit logs, so puts a checkpoint in the
transaction log every. The DBA determine the frequency of
the checkpoints based on volume of transactions. Too
frequent checkpoints affect performance. Checkpoints that
are too long in between will cause a longer mean time to
recovery because more logs will have to be applied.
And check the run-time configuration options
CHECKPOINT_SEGMENTS and CHECKPOINT_TIMEOUT.
The CHECKPOINT command forces an immediate checkpoint when
the command is issued, without waiting for a scheduled
checkpoint.
A checkpoint is a point in the transaction log sequence at
which all data files have been updated to reflect the
information in the log.
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