How to Create New User & Password in Oracle 21c [2025]

I have a username = x, password = y, database = z, port = a, SID = b, and Hostname = c. So, how do I connect correctly? I used many options like ...

In a default logon, SQL*Plus typically attempts to log you in using the username OPS$name, where name is your operating system username. Note that the prefix  ...

Enter user-name: Enter your username and press Return. SQL*Plus displays the prompt Enter password:. Enter your password and press Return again. For your ...

I'm trying to connect to an Oracle XE database using sqlplus.exe with the following command: CONNECT SYSTEM/password@ Yes that's right, the '@' symbol is the ...

To authenticate with a password file, enter the following commands, and then enter the SYS password when prompted: $ sqlplus /nolog. SQL> ...

I am trying to login to my database using sqlplus command. So I passed my username(aryan) and password(12345) but it says invalid username/password.

Open SQLPlus from the command line. Type in your username and password when prompted. If needed, enter the connection string like so: username/password@hostname ...

Type the command: ALTER USER username IDENTIFIED BY new_password;; Enter the new password when prompted. Exit SQL Plus. That's all there is to ...

If you enter a slash (/) or simply enter [Return] to the prompt for username, SQL*Plus logs you in using a default logon (see / below).