刚接管的新系统，想查看是否设置了某些事件，方法如下。
**APPLIES TO:** Oracle Database - Enterprise Edition - Version 7.1.2.0 to 12.2.0.1 [Release 7.1.2 to 12.2] Information in this document applies to any platform. **GOAL：** There are times when we need to disable or list out the existing oracle diagnostics events set on existing application or any existing Session. This note lists out a worked out example of how to capture existing session or system level diagnostics event set and how to disable them later on after verifying them.
<roidb01:orcl:/home/oracle>$sqlplus / as sysdba sql*Plus: Release 11.2.0.4.0 Production on Sat Feb 16 15:25:43 2019 Copyright (c) 1982,2013,Oracle. All rights reserved. Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production With the Partitioning,OLAP,Data Mining and Real Application Testing options [email protected]> oradebug setmypid Statement processed. [email protected]> oradebug eventdump system Statement processed. [email protected]> alter system set events=‘10231 trace name context forever,level 10‘; System altered. [email protected]> oradebug eventdump system 10231 trace name context forever,level 10 [email protected]> alter system set events=‘10231 trace name context off‘; System altered. [email protected]> oradebug eventdump system Statement processed. [email protected]> [email protected]> alter session set events=‘10231 trace name context forever,level 10‘; Session altered. [email protected]> oradebug eventdump session 10231 trace name context forever,level 10 [email protected]> alter session set events=‘10231 trace name context off‘; Session altered. [email protected]> oradebug eventdump session Statement processed. [email protected]>
