Converting Oracle database connection mode from Dedicated mode to Shared mode within Oracle Database 19c using DBCA.
Step 1: Configure an existing database.
Step 2: Choose the database.
Step 3: I have specified 30 process as shared servers.
Step 4: The database need Reboot.
Step 5: Check Oracle Parameter:
SQL> show parameter shared_servers
NAME TYPE VALUE
max_shared_servers integer
shared_servers integer 30