My Crusade

获得帮助信息
SQL> oradebug help
或者
SQL> oradebug help [command]
比如：
SQL> oradebug help setmypid
SETMYPID                                 Debug current process
SQL语句跟踪（SQL statement tracing）
SQL> oradebug setmypid
Statement processed.
SQL> oradebug event 10046 trace name context forever, level 4
Statement processed.
SQL> select * from v$option where parameter = ‘Real Application Clusters’;
PARAMETER                                VALUE
—————————————- —–
Real Application Clusters                TRUE
SQL> oradebug tracefile_name
/ee/oracle/rac/admin/orcldb/udump/orcldb1_ora_2011322.trc
SQL> oradebug close_trace
Statement processed.
错误堆栈转储（Error stack dumping）
SQL> oradebug setmypid
Statement processed.
SQL> oradebug event 942 [...]