ORACLE表空间的备份与恢复
1、切换服务器归档模式,如果已经是归档模式可跳过此步: %sqlplus /nolog (启动sqlplus) SQL> conn / as sysdba (以DBA身份连接数据库) SQL> shutdown immediate; (立即关闭数据库) SQL> startup mount (启动实例并加载数据库,但不打开) SQL> alter database archivelog; (更改数据库为归档模式) SQL> alter database open; (打开数据库) SQL> alter system archive log start; (启用自动归档) SQL> exit (退出)2、连接rmanrmanor/data/app/oracle/product/11.2.0/dbhome_1/bin/rmanRMAN> connecttarget sys/system@orcl --连接到目标数据库3、备份表空间 tpmRMAN>backup tablespace tpm plus archivelog delete input;4、恢复表空间SQL>alter tablespace tpmoffline for recover;//使tpm offlineRMAN>restore tablespacetpmRMAN>recover tablespacetpmRMAN>alter tablespace tpm online; //tpm online5、表空间的增量备份第一天的增量基本备份: RMAN> backup incremental level=0 tablespace tpm plus archivelog delete input; 第二天的增量差异备份: RMAN> backup incremental level=2 tablespace tpm plus archivelog delete input; 第三天的增量差异备份: RMAN> backup incremental level=2 tablespace tpm plus archivelog delete input; 第四天的增量差异备份: RMAN> backup incremental level=1 tablespace tpm plus archivelog delete input; 第五天的增量差异备份: RMAN> backup incremental level=2 tablespace tpm plus archivelog delete input; 第六天的增量差异备份: RMAN> backup incremental level=2 tablespace tpm plus archivelog delete input; 第七天的增量差异备份: RMAN> backup incremental level=0 tablespace tpm plus archivelog delete input; 注:需要用linux crontab 来每天自动运行上面的代码附:创建rman 目录表空间和用户1、 create tablespace rman_ts datafile '/data/app/oracle/oradata/rman/rman_ts.dbf' size 20M;2、 create user rman identified by rman default tablespace rman_ts temporary tablespace temp quota unlimited on rman_ts;3、 grant recovery_catalog_owner to rman;4、 grant connect, resource to rman谢谢楼主的分享! 我是初学者,有点看不懂,谢谢分享!
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