备份与恢复系列 七 续 catalog中的备份脚本

常用的备份命令可以保存到本地文件上，当我们需要的时候可以直接调用。也可以保存到catalog中。下面我们看看怎样在catalog中创建和使用脚本。

1，创建一个零级别全备份

create script b_whole_inc0 {

allocate channel c1 type disk;

allocate channel c2 type disk;

backup incremental level=0 cumulative

database

format '/backup/db0_%d_%s_%p_%t'

tag='whole_inc0';

release channel c1;

release channel c2;

}

2，创建一个1级增量备份

create script b_whole_inc1 {

allocate channel c1 type disk;

allocate channel c2 type disk;

backup incremental level=1 cumulative

database

format '/backup/db1_%d_%s_%p_%t'

tag='whole_inc1';

release channel c1;

release channel c2;

}

3，归档当前的联机重做日志

create script archive_log_current{

sql "alter system archive log current";

}

4，备份最近两天内的归档日志

create script b_archive_2days{

allocate channel c1 type disk;

execute script archive_log_current;

backup archivelog

from time 'SYSDATE-2'

format '/backup/ar_%d_%s_%p_%t';

release channel c1;

}

5，备份最近两天内的归档日志，删除两天前已经备份过的归档

create script archive_delete3{

allocate channel c1 type disk;

execute script archive_log_current;

backup archivelog

from time 'SYSDATE-3' until time 'SYSDATE-2'

delete input;

release channel c1;

}

在SQLPLUS下查看脚本catalog保存的脚本，可以从rman中通过host切换

RMAN>host;

sqlplus \nolog

connect rmanadmin/rmanadmin@rcat

col SCRIPT_NAME for a20

col SCRIPT_COMMENT for a20

select * from rc_stored_script;

    DB_KEY DB_NAME  SCRIPT_NAME          SCRIPT_COMMENT

---------- -------- -------------------- --------------------

         1 PRACTICE b_whole_inc0

         1 PRACTICE b_whole_inc1

         1 PRACTICE archive_log_current

         1 PRACTICE b_archive_2days

         1 PRACTICE archive_delete3

exit

exit;

重新回到rman提示符下

查看script脚本

RMAN> print script archive_log_current;

printing stored script: archive_log_current

{sql "alter system archive log current";

}

执行并删除存储脚本

run{

execute script b_whole_inc0;

execute script b_whole_inc1;

execute script b_archive_2days;