? Resetlogs scn: 0x0000.00080634 Resetlogs Timestamp? 02/19/2014 14:20:23
? Prior resetlogs scn: 0x0000.00000001 Prior resetlogs Timestamp? 10/22/2005 21:44:08
? Redo Version: compatible=0xa200100
? #Data files = 6, #Online files = 6
?Database checkpoint: Thread=1 scn: 0x0000.00091eb4
? Threads: #Enabled=1, #Open=0, Head=0, Tail=0
?......
? Max log members = 3, Max data members = 1
? Arch list: Head=2, Tail=2, Force scn: 0x0000.00091e72scn: 0x0000.00091e88
? Activation ID: 1367751332
? Controlfile Checkpointed at scn:? 0x0000.00091e88 04/16/2014 13:54:24
? thread:0 rba:(0x0.0.0)
?......
粗体加红表示的数据库检查点SCN号。
b).存储在控制文件中的数据文件检查点次数、SCN号和停止SCN号：
***************************************************************************
DATA FILE RECORDS
?***************************************************************************
? (size = 428, compat size = 428, section max = 100, section in-use = 6,
? last-recid= 9, old-recno = 0, last-recno = 0)
? (extent = 1, blkno = 11, numrecs = 100)
?DATA FILE #1:
? (name #7) /u01/app/oracle1/oradata/orcl/system01.dbf
?creation size=0 block size=8192 status=0xe head=7 tail=7 dup=1
? tablespace 0, index=1 krfil=1 prev_file=0
? unrecoverable scn: 0x0000.00000000 01/01/1988 00:00:00
? Checkpoint cnt:183 scn: 0x0000.00091eb4 04/16/2014 13:54:27
? Stop scn: 0x0000.00091eb4 04/16/2014 13:54:27
? Creation Checkpointed at scn:? 0x0000.00000008 10/22/2005 21:44:31
? thread:0 rba:(0x0.0.0)
?cnt表示的是检查点次数，scn表示的是数据文件检查点SCN，Stop scn表示的是数据文件停止SCN。
DATA FILE #2:
? (name #6) /u01/app/oracle1/oradata/orcl/undotbs01.dbf
?creation size=0 block size=8192 status=0xe head=6 tail=6 dup=1
? tablespace 1, index=2 krfil=2 prev_file=0
? unrecoverable scn: 0x0000.00000000 01/01/1988 00:00:00
?Checkpoint cnt:145 scn: 0x0000.00091eb4 04/16/2014 13:54:27
?Stop scn: 0x0000.00091eb4 04/16/2014 13:54:27
? Creation Checkpointed at scn:? 0x0000.0007fd42 10/22/2005 22:24:27
? thread:0 rba:(0x0.0.0)
?DATA FILE #3:
? (name #5) /u01/app/oracle1/oradata/orcl/sysaux01.dbf
?creation size=0 block size=8192 status=0xe head=5 tail=5 dup=1
? tablespace 2, index=3 krfil=3 prev_file=0
? unrecoverable scn: 0x0000.00000000 01/01/1988 00:00:00
?Checkpoint cnt:183 scn: 0x0000.00091eb4 04/16/2014 13:54:27
?Stop scn: 0x0000.00091eb4 04/16/2014 13:54:27
? Creation Checkpointed at scn:? 0x0000.00001896 10/22/2005 21:44:46
? thread:0 rba:(0x0.0.0)
?DATA FILE #4:
? (name #4) /u01/app/oracle1/oradata/orcl/users01.dbf
?creation size=0 block size=8192 status=0xe head=4 tail=4 dup=1
? tablespace 4, index=4 krfil=4 prev_file=0
? unrecoverable scn: 0x0000.00000000 01/01/1988 00:00:00
?Checkpoint cnt:182 scn: 0x0000.00091eb4 04/16/2014 13:54:27
?Stop scn: 0x0000.00091eb4 04/16/2014 13:54:27
? Creation Checkpointed at scn:? 0x0000.000027b9 10/22/2005 21:45:00
? thread:0 rba:(0x0.0.0)
?DATA FILE #5:
? (name #9) /u01/app/oracle1/oradata/orcl/gguser.dbf
?creation size=128000 block size=8192 status=0xe head=9 tail=9 dup=1
? tablespace 6, index=6 krfil=5 prev_file=0
? unrecoverable scn: 0x0000.00000000 01/01/1988 00:00:00
?Checkpoint cnt:135 scn: 0x0000.00091eb4 04/16/2014 13:54:27
?Stop scn: 0x0000.00091eb4 04/16/2014 13:54:27
? Creation Checkpointed at scn:? 0x0000.00083314 02/19/2014 14:33:57
? thread:1 rba:(0x2.c04b.10)
?DATA FILE #6:
? (name #10) /u01/app/oracle1/oradata/orcl/ogg2.dbf
?creation size=640 block size=8192 status=0x86 head=10 tail=10 dup=1
? tablespace 7, index=