Had a few issues when trying to connect to oracle xe installed by another user Getting sqlplus to work set ORACLE_HOME=C:\oraclexe\app\oracle\product\11.2.0\server set ORACLE_SID=XE set PATH=C:\oraclexe\app\oracle\product\11.2.0\server\bin;%PATH% Connecting as sysdba to change password (ORA-01031: insufficient privileges) Type Edit local users in your start menu search bar (Select the first one in the Control panel group) Click Groups Select ORA_DBA Add your user here sqlplus / as sysdba from the command prompt with all above variables set alter user SYS identified by "newpassword";
The Incident Archive: A blog to store my knowledge on the errors that I fix on a daily basis