After database instance creation, you can change
the value of the open_cursors parameter by running
the following SQL command using the SYSDBA role "alter system set
open_cursors = [number of open cursors] scope=both;"
and restarting the database instance.
For more information about the open_cursors
parameter, see the Oracle documentation https://docs.oracle.com/en/database/oracle/oracle-database/19/refrn/OPEN_CURSORS.html#GUID-FAFD1247-06E5-4E64-917F-AEBD4703CF40