前面介绍了Oracle的基本参数,从这节开始讲其他的参数,参数从v$parameter中提取
基本参数请看如下链接: http://www.zhaibibei.cn/oralce/oracle-parameter/
如无特殊说明数据库版本为11.2
event
该参数一般给Oracle Support用来做特殊用途使用的
如10053事件 10046事件等
他可以开启更多的trace或排错功能
可以使用如下命令在参数文件中设定
EVENT="<event 1>:<event 2>: <event 3>: <event n>"
也可以换行指定
EVENT="\
10210 trace name context forever, level 10:\
10211 trace name context forever, level 10:\
10231 trace name context forever, level 10:\
10232 trace name context forever, level 10"\
生效需重新启动数据库
一些事件我们可以在session级别指定
一些常用的事件event
In order to trace a MAX_CURSORS exceeded error:
event="1000 trace name ERRORSTACK level 3"
To get an error stack related to a SQLNET ORA-03120 error:
event="3120 trace name error stack"
To dump the control file:
alter session set events 'immediate trace name CONTROLF level 10'
To dump the file headers:
alter session set events 'immediate trace name FILE_HDRS level 10'
To dump redo log headers:
alter session set events 'immediate trace name REDOHDR level 10'
To dump the system state:
alter session set events 'immediate trace name SYSTEMSTATE level 10'
To dump the optimizer statistics whenever a SQL statement is parsed:
alter session set events '10053 trace name context forever'
To enable the maximum level of SQL performance monitoring:
event = "10046 trace name context forever, level 12"
更多event可参考下面链接
实际截图:
参考连接
http://www.dba-oracle.com/int_event_initialization_parameters.htm
下期参数
shared_pool_size