In this post, you’ll learn more about the Oracle ErrorORA-24398: connection pool already exists with the details on why you receive this error and the possible solution to fix it.
Oracle Error Description
ORA-24398: connection pool already exists
Reason for the Error ORA-24398: connection pool already exists
A connection pool has already been created for the specified pool handle.
How to fix the Error ORA-24398: connection pool already exists ?
You can fix this error in Oracle by following the below steps
1) Specify a different pool handle to create a new connection pool. 2) If you wish to modify the pool parameters, call OCIConnectionPoolCreate in OCI_CPOOL_REINITIALIZE mode.