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1) I installed Oracle 12c (64 bit windows)12.2.0.1.0 2) I installed sql developer and tried to connect to the database, I realized I forgot user name and password. I dont even remember if I entered one , I tried all I can remember. Nut I continue to get status - failure ora01017 invalid username and password;logon failed.

I used SID as ORCL , authentication type default , & local host & role as default. Can someone please help me ? I'm total new to Oracle. How can I check what username and password I created while installing oracle database?

Thank you so much for your help!

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    Is there a reason you don't just uninstall and start from scratch, making sure, you notate the information for the user?
    – Ramhound
    Commented Apr 17, 2019 at 20:58
  • Not sure about windows but Linux have sysdba group which allow a local user to connect to the database over the socket. 'sqlplus / as sysdba' when logged in as a user of sysdba group and environment variables are set.
    – Aroly7
    Commented Apr 17, 2019 at 21:04
  • i have no choice to do re-install and spend another hour on this.
    – user8371676
    Commented Apr 17, 2019 at 21:05
  • @user8371676 see last part
    – Aroly7
    Commented Apr 17, 2019 at 21:07

1 Answer 1

Reset to default
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You can connect using the local user as sysdba and change the sys password.

REF the last article is relevant

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