在逻辑备份数据库时,用户可能会希望在dmp文件中加入日期变量,以区分不同日期的备份文件,并且可以防止意外的覆盖。参考了eagle
在逻辑备份数据库时,用户可能会希望在dmp文件中加入日期变量,以区分不同日期的备份文件,并且可以防止意外的覆盖。参考了eagle的一书《循序渐近Oracle》,并且试验了一些脚本如下:
1.Linux或者unix上的脚本
包括一个脚本:
exp rman/rman file='date +%y%m%d'.dmp log='date +%y%m%d'.log
2.在windows上的脚本
包括两个脚本,该脚本可以实现生成当天的dmp文件,并且删掉前天的dmp文件。
脚本一:exp_seagull.bat
echo off
sqlplus rman/rman@vm10 @exp_seagull.sql
脚本二:exp_seagull.sql
column jintian new_val jt
select to_char(sysdate,'YYYYMMDD') jintian from dual;
host exp userid=rman/rman@vm10 file=exp_seagull_&jt..dmp log=exp_seagull_&jt..log
column qiantian new_val qt
select to_char(sysdate-2,'YYYYMMDD') qiantian from dual;
host del exp_seagull_&qt..dmp
exit

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