What are the steps to connect to a database using sqlplus?

The steps to connect to an Oracle database are as follows:

1. Open the command prompt or terminal window.
2. The SQL*Plus command line tool.
3. username/password for sqlplus
4. Connect to the SQLPlus database using the username “scott” and password “tiger”.
5. Login to the hostname with your username and password using sqlplus.
6. Access the SQLplus using the credentials scott/tiger on the IP address 192.168.1.100.
7. Can you provide the following query in SQL language?

Please make sure that the database service is running and that you have the correct username and password when connecting to the database. If the connection fails, check if the username, password, and hostname are correct, and ensure that the database service is running properly.