发布时间:2013-05-24 11:19:15
Oracle 11g 补丁在$ORACLE_HOME/dbs目录下创建pfile文件修改参数文件和控制文件中指定的文件[root@data dev]# df -Th[root@data ~]# df -ThFilesystem Type Size Used Avail Use% Mounted on/dev/sda3 ext3 27G 15G 11G 59% //dev/sda1 ext3 99M 22M 72M 24% /boottmpfs .........【阅读全文】
发布时间:2013-05-21 15:30:40
用oracle用户连接数据库,[oracle@data /]$ env |grep ORAORACLE_SID=undosqlORACLE_BASE=/u01/app/oracleORACLE_HOME=/u01/app/oracle/product/11.2.0/dbhome_1[oracle@data /]$ sqlplus / as sysdbaSQL> archive log list;Database log mode.........【阅读全文】
发布时间:2013-05-21 14:28:31
System alteredSQL> select event,total_waits,time_waited,average_wait fromv$session_event where sid=1 order bytotal_waits desc; EVENT  .........【阅读全文】
发布时间:2013-05-14 15:36:57
For decades the enterprise softwareindustry has grown fat on outsized, upfront license fees coupled with ongoing,high-margin maintenance streams. Cracks in the model have threatened to dismantle the system for years, asreported by The Wall Street Journal back in 2009, with CIOs chafing at.........【阅读全文】
发布时间:2013-05-09 10:29:40
Sql代码 SELECTemp_name, dept_name FORM Employee, Department WHERE Employee.emp_deptid(+) = Department.deptid 此SQL文使用了右连接,即“(+)”所在位置的另一侧为连接的方向,右连接说明等号右侧的所有记录均会被显示,无论其在左侧是否得到匹配,也就是说上例中无论会不会出.........【阅读全文】