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additional events

Cursor tracing

to find the hash_value of the parent cursor for adress
select sql_text, hash_value
from v$sqlarea where sql_id='<sql_id>’;

turn on tracing:
alter session set events ‘immediate trace name cursortrace level 99172,  address <hash_value>’;

turn off tracing
alter system set events ‘immediate trace name cursortrace level 2147483648, address 1’;

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