我先用shutdown normal關閉了數據庫，可是它很慢，幾十分鐘過去了紋絲不動，又打不開，後來用shutdown abort解決的。
C:\>sqlplus/nolog
SQL> conn sys/ as sysdba
輸入口令:
已連接到空閒例程。
SQL> startup
ORA-10997: another startup/shutdown operation of this instance inprogress
ORA-09968: unable to lock file
SQL> shutdown immediate
ORA-24324: 未初始化服務句柄
ORA-24323: 不允許此值
ORA-01090: shutdown in progress - connection is not permitted
SQL> startup nomount
ORA-10997: another startup/shutdown operation of this instance inprogress
SQL> startup mount
ORA-10997: another startup/shutdown operation of this instance inprogress
SQL> shutdown abort
ORACLE 例程已經關閉。
SQL> startup
ORACLE 例程已經啓動。
Total System Global Area 167772160 bytes
Fixed Size 1247900 bytes
Variable Size 79693156 bytes
Database Buffers 83886080 bytes
Redo Buffers 2945024 bytes
數據庫裝載完畢。
數據庫已經打開。
SQL>