Question

How do I connect to Oracle via sqlplus

Answer 1

open a command prompt.

enter something like this:

sqlplus ml/ml@EMR

 

explained:

sqlplus username/password@schema

Comments

SQLPLUS can also be launched from a shortcut.  In this case when it asks for the user-name remember to specify the schema the user is linked to.  Example:
  Enter user-name: ml@EMR
Then enter ml as the password when prompted