确定在Linux的Oracle用户下crontab是否有效
在Oracle数据库中,有时会发现备份脚本可以在命令行可以执行,但在crontab不能执行。如何确定在Linux的oracle用户下crontab是否有
在Oracle数据库中,有时会发现备份脚本可以在命令行可以执行,但在crontab不能执行。
如何确定在Linux的oracle用户下crontab是否有效。
可以写一个最简单的脚本,脚本中只有date命令,,把脚本输入到一个日志文件中。如:
30 23 * * 0-6 /u01/app/rmanBackup/date.sql >>/u01/app/rmanBackup/date.log
Date.sql需要有足够的执行权限。
如果可以定时执行date命令,表示在oracle下可以使用crontab命令
Oracle的脚本不能执行,是因为在crontab中找不到oracle下的相关命令,所以需要加上export设置环境变量。没有设置export不能执行。
如:全备:
[@linuxidc rmanBackup]$ vi backupFull.sql
内容:
# script.:bakupFull.sql
# creater:mengzhaoliang
# date:2010/12/28
# desc:backup full database datafile in archive with rman
# connect database
export ORACLE_BASE=/u01/app/oracle
export ORACLE_HOME=/u01/app/oracle/product/11.2.0/dbhome_1
export ORACLE_SID=hyoms
export PATH=$ORACLE_HOME/bin:$PATH
rman target/
run{
allocate channel c1 type disk;
backup tag 'full' format '/u01/app/rmanBackup/db0_%d_%T_%s' database include current controlfile;
delete noprompt obsolete;
release channel c1;
}
# end
如:crontab
[oracle@ ~]$ crontab -e
30 23 * * 0-6 /u01/app/rmanBackup/backupFull.sql >>/u01/app/rmanBackup/backupFull.log

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