In this post, you’ll learn more about the Oracle ErrorORA-14450: attempt to access a transactional temp table already in use with the details on why you receive this error and the possible solution to fix it.
Oracle Error Description
ORA-14450: attempt to access a transactional temp table already in use
Reason for the Error ORA-14450: attempt to access a transactional temp table already in use
An attempt was made to access a transactional temporary table that has been already populated by a concurrent transaction of the same session.
How to fix the Error ORA-14450: attempt to access a transactional temp table already in use ?
You can fix this error in Oracle by following the below steps
do not attempt to access the temporary table until the concurrent transaction has committed or aborted.