How to change Oracle Database 18c, sql plus username and password using cmd

Command :---
sqlplus / as sysdba

ALTER USER user_name IDENTIFIED BY password;

example:-
sqlplus / as sysdba

ALTER USER system IDENTIFIED BY system;

ERROR:
ORA-01017: invalid username/password; logon denied

#softtechhelp

[yogesh]

Thanks brooo..🙏🙏
Explanation ke saath deta toh aur easy ho jata...
Aur wo password 'system' hai ye BHI bata deta 😂😂

[bandewalekeerthi]

It really worked for me.
Thank you so much 😊

[anitaojwani]

Thanku huwa 3 hour lagi thi....aap ki video se hogya 🙏

[udayrajpatil]

Bro this video is really helpful than other YouTube videos

[CatchBeforeDie]

great helpful video sir ..👌👌👌👌👌👌
thanks a lot for a helpful

[abcdeftanutanu]

Yeah guys the password is actually system and it's not seen in the video because password is not displayed actually so we people will feel like password is nothing or empty string
But password is system 😂

[ThiliphanS]

Bro In command prompt i type as it is you type but showing again enter password and username pls tell the solution:/

[debasishbisoyi]

Hi bro I'm getting
sp2-0306: invalid options error
Can you plz check once

[vishnuvardhanreddyviki]

bro my pc asking the sid alredy spcified now what i am do how to login old account plz tell me bro

[lifehacksbyharshal]

After alter user, it's showing ulta is not recognised as an internal or external command operable program or batch file
Tell me what to do in this case

[entertainment]

How to change username, password and host string?

[vinayvenkatesh]

Only password changed how to change username ????

[gizeappsofficial]

What is finaly passwords of Oracle database 18c