oracle几个关键后台进程的官方解释
oracle几个关键后台进程的官方解释
参看：https://docs.oracle.com/en/database/oracle/oracle-database/19/cncpt/process-architecture.html#GUID-B5CA9579-53DB-442C-A85F-F21FD334833A
Checkpoint Process (CKPT)
The checkpoint process (CKPT) updates the control file and data file headers with checkpoint information and signals DBW to write blocks to disk. Checkpoint information includes the checkpoint position, SCN, and location in online redo log to begin recovery.
As shown in Figure 15-4, CKPT does not write data blocks to data files or redo blocks to online redo log files.
