ORA-65096: invalid common user or role name on oracle12c 오라클12c 를 설치하고 계정을 생성하다 보니 이런 에러가 발생하면서 실패;;;;;; 구문이 맞는지 확인했으나.. 너무 간단하기도 하고 틀린것 같지도 않아서 찾아보니.. http://docs.oracle.com/database/121/ERRMG/e60000.htm ORA-65096: invalid common user or role name Cause: An attempt was made to create a common user or role with a name that was not valid for common users or roles. In addition to the usual rules for user and role names, common user and role names must start with C## or c## and consist only of ASCII characters. Action: Specify a valid common user or role name. 이렇댄다.. 아무리 공식적인 거라도 그렇지.. 그럼 세상에 뭔 ”C##”을 계정을 생성할때마다 써줘야 하는건가… 했더니만.. 세상 어디에든 젖과 꿀은 있게 마련인갑다… http://www.dba-oracle.com/t_ora_65096_create_user_12c_without_c_prefix.htm connect system/manager as sysdba alter session set “_ORACLE_SCRIPT”=true; create user fred identified by flintstone; grant dba to [ more… ]