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ORA-00074: no process has been specified while using oradebug


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while suing oradebug raises error ORA-00074

SQL> oradebug eventdump system;
ORA-00074: no process has been specified
Solution
setmypid , and issue the oradebug statement again

SQL>  oradebug setmypid
Statement processed.
SQL> oradebug eventdump session;
3171 trace name errorstack level 3

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