Oracle, RMAN restores database data to the specified time, RMAN does not fully restore the shell script
RMAN backup configuration, see the shell script: https://blog.csdn.net/weixin_43614067/article/details/109647639
su - oracle
sqlplus / as sysdba
#设置时间格式
SQL> ALTER SESSION SET NLS_DATE_FORMAT='YYYY-MM-DD HH24:MI:SS';
#查看数据库原型（当前原型为2）
SQL> SELECT INCARNATION#,STATUS,RESETLOGS_TIME FROM V$DATABASE_INCARNATION;
INCARNATION# STATUS RESETLOGS_TIME
------------ ------- -------------------
1 PARENT 2009-08-15 00:16:43
2 CURRENT 2020-10-22 10:13:52
3 ORPHAN 2020-11-13 09:31:38
4 ORPHAN 2020-11-16 17:09:12
5 ORPHAN 2020-11-16 17:11:07
6 ORPHAN 2020-11-16 17:25:57
7 ORPHAN 2020-11-16 17:29:44
8 ORPHAN 2020-11-16 17:34:25
9 ORPHAN 2020-11-16 17:39:11
10 ORPHAN 2020-11-16 17:51:56
11 ORPHAN 2020-11-16 17:54:40
INCARNATION# STATUS RESETLOGS_TIME
------------ ------- -------------------
12 ORPHAN 2020-11-16 17:57:59
12 rows selected.
#另起会话窗口
su - oracle
rman target/
#切换数据库原型至11（需在mount状态）
#强制关闭数据库
#SQL>shutdown abort;
#将数据库以mount方式启动
#SQL>startup mount;
RMAN> reset database to incarnation 11;
using target database control file instead of recovery catalog
database reset to incarnation 11
#在rman查看当前的数据库原型（当前数据库原型为11）
#orcl为数据库名
RMAN> list incarnation of database "orcl";
List of Database Incarnations
DB Key Inc Key DB Name DB ID STATUS Reset SCN Reset Time
------- ------- -------- ---------------- --- ---------- ----------
1 1 ORCL 1582243166 PARENT 1 15-AUG-09
2 2 ORCL 1582243166 PARENT 945184 22-OCT-20
3 3 ORCL 1582243166 PARENT 2659636 13-NOV-20
4 4 ORCL 1582243166 PARENT 2858078 16-NOV-20
5 5 ORCL 1582243166 ORPHAN 2858279 16-NOV-20
6 6 ORCL 1582243166 PARENT 2858279 16-NOV-20
7 7 ORCL 1582243166 ORPHAN 2858501 16-NOV-20
10 10 ORCL 1582243166 ORPHAN 2858501 16-NOV-20
8 8 ORCL 1582243166 ORPHAN 2858569 16-NOV-20
11 11 ORCL 1582243166 CURRENT 2858575 16-NOV-20
12 12 ORCL 1582243166 ORPHAN 2858575 16-NOV-20
9 9 ORCL 1582243166 ORPHAN 2878961 16-NOV-20
Restore database data to the specified time
#恢复数据库数据至指定时间
#在第一步中查到数据库原型11的具体日期 11 ORPHAN 2020-11-16 17:54:40
#切换数据库原型至11后 11 CURRENT 2020-11-16 17:54:40;
#注意：下面命令中time='2020-11-16 17:55:00'只能在当前数据库原型时间之后。
#若在当前时间前，会报UNTIL TIME or RECOVERY WINDOW is before RESETLOGS time。
#举个栗子:time='2020-11-16 17:53:00'时间在11号原型时间2020-11-16 17:54:40之前，
#就会报UNTIL TIME or RECOVERY WINDOW is before RESETLOGS time
RMAN>run {
shutdown abort;
startup mount;
allocate channel ch1 type disk;
allocate channel ch2 type disk;
sql 'alter session set nls_date_format="yyyy-mm-dd hh24:mi:ss"';
set until time='2020-11-16 17:55:00';
restore database;
recover database;
alter database open resetlogs;
}
rman does not fully restore shell scripts
#!/bin/bash
rmanbakDir=/u01/rmanbak
#日志输出路径
logDir=$rmanbakDir/log
recoverdata(){
echo "恢复数据到日期:${1}"
su - oracle -c "
rman target / <<EOF
run{
shutdown abort;
startup mount;
allocate channel ch1 type disk;
allocate channel ch2 type disk;
sql 'alter session set nls_date_format=\"yyyy-mm-dd hh24:mi:ss\"';
set until time='${1}';
restore database;
recover database;
alter database open resetlogs;
}
exit;
EOF"
opendatabase
}
startRecover(){
read -p "请输入恢复到的日期（如2020-11-16 17:55:00）:" inputdate
if [ -z '$inputdate' ]
then
echo "输入日期为空，请重新输入！"
startRecover
else
echo "输入参数为：$inputdate"
date -d "$inputdate" +%Y-%m-%d\ %H:%M:%S
if test $? -eq 0
then
echo "输入的日期格式合法!"
recoverdata "${inputdate}" | log
else
echo "输入的日期格式不合法，请重新输入!"
startRecover
fi
fi
}
opendatabase(){
if test $? -ne 0
then
echo "rman恢复非正常运行，重新打开数据库!"
su - oracle -c "
sqlplus / as sysdba <<EOF
alter database open;
exit;
EOF"
else
echo "rman恢复正常运行，数据库已启动!"
fi;
}
log(){
tee -a $logDir/rmanrecover_$backtime.log
}
isDirectory(){
if test -d $1
then
echo "日志目录：$1目录已存在!"
else
echo "日志目录：$1目录不存在!,创建目录!"
mkdir -p $1
fi
}
isDirectory $logDir | log
startRecover | log