這個問題說明數據庫沒有Mount
最好先將系統日志一並清空,避免以下報錯信息:
ERROR:
ORA-28056: Writing audit records to Windows Event Log failed
OSD-246729112: Message 246729112 not found; product=RDBMS; facility=SOSD
O/S-Error: (OS 1502) The event log file is full.
ORA-01075: you are currently logged on
通過命令 sqlplus /nolog 進入
SQL> connect system/root as sysdba;
SQL> startup force;
出現這個界面，說明數據庫已經打開了，然后在鏈接數據庫就可以連上了