Create users and assign permissions

- [Instructor] Oracle comes built-in…with a super user called Sys.…Connecting to Sys from SQL Plus requires either…adding as sysdba to the postfix,…such as sqlplus…sys/ the password,…which is oracle in my case,…and as sysdba.…This will open a connection to the Oracle instance…as the most powerful sys or sysdba user.…

Alternatively, we can just type…sqlplus, quotation marks, as sysdba,…and be connected to the instance…with the sys, sysdba user.…We don't need to supply a password…specifically for the sys user,…only because we are physically logged on…to the same server where the Oracle instance is running.…And, we are running SQL Plus from the Oracle Linux user,…which is the user that started the Oracle instance.…

That is the only reason why we can skip the password…for such a powerful user when logging on to the database.…A connection with sys from any other machine…in our network to our database,…would have required us to supply the password.…Creating additional users in Oracle is also extremely easy.…In order to create users, we'll need to first log on…