“植物大战僵尸”版中秋国庆假期表-------有意思!
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重建UNDO表空间
1)建立临时UNDO表空间 CREATE UNDO TABLESPACE undotbs001 DATAFILE '/home/oracle/oradata/jw/undo001.dbf' SIZE 500M ; 2)将系统UNDO表空间修改为前面新建的临时UNDO表空间 alter system set undo_tablespace=undotbs001 scope=both; 3)删除undo表空间及其数据文件 drop tablespace undotbs including contents and datafiles; 4)重建临时表空间 CREATE UNDO TABLESPACE undotbs DATAFILE '/home/oracle/oradata/jw/undo02.dbf' SIZE 300M ; 5)重新将系统UNDO表空间修改为undotbs alter system set undo_tablespace=un
oracle DBA 角色重建
一哥们由于误操作,在pl/sql developer中直接将公司测试数据库服务器中DBA 角色给删除了,导致system用户建立普通用户的权限丢失,只好协助其重建,通过晚上查看资料,过程如下:-- Create the role create role DBA;-- Grant/Revoke object privileges grant execute on DBMS_DBVERIFY to DBA;grant execute on DBMS_DEFER_QUERY to DBA;grant execute on DBMS_DEFER_SYS to DBA;grant execute on DBMS_FEATURE_USAGE to DBA;grant execute on DBMS_FLASHBACK to DBA;grant execute on DBMS_MONITOR to DBA;grant execute on DBMS_RESUMA
oralce uptime bug
某学校的业务系统在寒假结束后使用的时候发现sqlplus不能连接数据库,服务器上产生的现象如下:[root@yjsgl ~]# su - oracle[oracle@yjsgl ~]$ sqlplus "/as sysdba"然后数据库hang住了。客户数据库环境:as5+oracle 10.2.0.1[root@yjsgl ~]# uptime 16:26:54 up 334 days, 48 min, 2 users, load average: 0.02, 0.23, 14.68[oracle@yjsgl databak]$ toptop - 15:41:08 up 334 days, 2 min, 3 users, load average: 169.09, 168.61, 167.71Tasks: 780 total, 170 running, 609 sleeping, 1 stopped, 0 zombieCpu(s): 3