Log in to the database server via Sqlplus

Click "Run", enter "Sqlplus", pop

，

Enter the account again. Scott, password Tiger

Or, click "Run", enter "Sqlplus/nolog", this time only to open the login, log in and connect to the remote server need to enter the Operation command

Where the @ server name, the server name can write their own, (do not fill in the default connection localhost),

Join your own creation, connect via Net Manager,

, click on the upper left corner of the green "+", appear,

Here I fill in here the server name is written as "pc200" (random),

，

Select the TCP protocol, next,

The host name here is

The IP or computer name of the computer to which the connection is connected,

This is the default here,

，

At this point, you can see that the SYS administrator privilege is larger than the system

, to restart the server database,

, even if the random input, you can also connect, because the problem of window,

，

After double-clicking,

Administrator become an administrator, so the operation on the login will be assumed to be the operation of Administor, and after deletion, it will not be able to operate.

Log in to the database server via Sqlplus