Connect to the Oracle Database with SYS user through SQLPLUS
SQL> show parameter open_cursors;
NAME TYPE VALUE
———— —- ——–
open_cursors integer 300
SQL> alter system set open_cursors = 1000 scope = both;
Changed system.
SQL> alter system set open_cursors = 1000 scope = spfile;
Changed system.
SQL> show parameter open_cursors;
NAME TYPE VALUE
———— —- ——–
open_cursors integer 1000