(1)備份資料庫
[[email protected] ~ 22]$db2 backup db sample online include logs Backup successful. The timestamp for this backup image is : 20051223120837 [[email protected] ~ 23]$ （2）刪除資料庫
[[email protected] ~ 5]$db2 drop db sample
SQL1035N  The database is currently in use.  SQLSTATE=57019
[[email protected] ~ 6]$db2 force application all
DB20000I  The FORCE APPLICATION command completed successfully.
DB21024I  This command is asynchronous and may not be effective immediately. [[email protected] ~ 7]$db2 drop db sample
DB20000I  The DROP DATABASE command completed successfully.
[[email protected] ~ 8]$ (3)恢復資料庫
[

[email protected] ~ 27]$db2 restore db sample taken at 20051223120837 logtarget /home/db2inst1/db2log/
DB20000I  The RESTORE DATABASE command completed successfully.
[[email protected] ~ 28]$ （4）檢視時間標記
[[email protected] ~ 28]$db2 list history backup all for db sample                     List History File for sample Number of matching file entries = 3
 Op Obj Timestamp+Sequence Type Dev Earliest Log Current Log  Backup ID
 -- --- ------------------ ---- --- ------------ ------------ --------------
  B  D  20051223120655001   F    D  S0000000.LOG S0000000.LOG
 ----------------------------------------------------------------------------
  Contains 2 tablespace(s):   00001 SYSCATSPACE
  00002 USERSPACE1
 ----------------------------------------------------------------------------
    Comment: DB2 BACKUP SAMPLE OFFLINE
 Start Time: 20051223120655
   End Time: 20051223120731
     Status: A
 ----------------------------------------------------------------------------
  EID: 1 Location: /home/db2inst1
 Op Obj Timestamp+Sequence Type Dev Earliest Log Current Log  Backup ID
 -- --- ------------------ ---- --- ------------ ------------ --------------
  B  D  20051223120837001   N    D  S0000000.LOG S0000000.LOG
 ----------------------------------------------------------------------------
  Contains 2 tablespace(s):   00001 SYSCATSPACE
  00002 USERSPACE1
 ----------------------------------------------------------------------------
    Comment: DB2 BACKUP SAMPLE ONLINE
 Start Time: 20051223120837
   End Time: 20051223120902
     Status: A
 ----------------------------------------------------------------------------
  EID: 2 Location: /home/db2inst1
 Op Obj Timestamp+Sequence Type Dev Earliest Log Current Log  Backup ID
 -- --- ------------------ ---- --- ------------ ------------ --------------
  R  D  20051223121039001   F                                 20051223120837
 ----------------------------------------------------------------------------
  Contains 2 tablespace(s):   00001 SYSCATSPACE
  00002 USERSPACE1
 ----------------------------------------------------------------------------
    Comment: RESTORE SAMPLE WITH RF
 Start Time: 20051223121039
   End Time: 20051223121113
     Status: A
 ----------------------------------------------------------------------------
  EID: 3 Location: [

[email protected] ~ 29]$
根據時間標記可以在上面列出的資訊中找出如下資訊：
Op Obj Timestamp+Sequence Type Dev Earliest Log Current Log  Backup ID
 -- --- ------------------ ---- --- ------------ ------------ --------------
  B  D  20051223120837001   N    D  S0000000.LOG S0000000.LOG
 ----------------------------------------------------------------------------
  Contains 2 tablespace(s):   00001 SYSCATSPACE
  00002 USERSPACE1
 ----------------------------------------------------------------------------
    Comment: DB2 BACKUP SAMPLE ONLINE
 Start Time: 20051223120837
   End Time: 20051223120902
     Status: A
 ----------------------------------------------------------------------------
  EID: 2 Location: /home/db2inst1
從這段資訊中可以得知備份的開始時間（Start Time: 20051223120837）和結束時間（End Time: 20051223120902）
以及進行前滾所需要的日誌（S0000000.LOG），該日誌檔案已經在/home/db2inst1/db2log/中。 其中，End Time: 20051223120902為備份的結束時間，同時它也是前滾時的最小恢復時間點（PIT），也就是說，
如果按照指定時間點恢復，最小要恢復到這個時間點，如果用提前於這個時間的時間來前滾，將會返回資訊提示：
[[email protected] ~ 31]$db2 ”rollforward db sample to 2005-12-23-12.09.00.000000 using local time and stop overflow log path(/home/db2inst1/db2log/)“
SQL1275N  The stoptime passed to roll-forward must be greater than or equal to
"2005-12-23-12.09.02.000000", because database "SAMPLE" on node(s) "0"
contains information later than the specified time.
[[email protected] ~ 32]$
所以至少要恢復到這個時間點。命令如下：
[[email protected] ~ 33]$db2 "rollforward db sample to 2005-12-23-12.09.02.000000 using local time and stop overflow log path(/home/db2inst1/db2log/)"                                  Rollforward Status  Input database alias                   = sample
 Number of nodes have returned status   = 1  Node number                            = 0
 Rollforward status                     = not pending
 Next log file to be read               =
 Log files processed                    = S0000000.LOG - S0000000.LOG
 Last committed transaction             = 2005-12-23-12.09.02.000000 DB20000I  The ROLLFORWARD command completed successfully. [[email protected] ~ 34]$db2 connect to sample    Database Connection Information  Database server        = DB2/LINUX 8.2.0
 SQL authorization ID   = DB2INST1
 Local database alias   = SAMPLE [[email protected] ~ 35]$ 此時，資料庫是可用狀態。