oracle啓動報錯oracle initialization or shutdown in progress

昨天在linux命令行直接刪除了/data/oradbs/cqna_rdm.dbf文件，今天發現Oracle連接報錯

用plsql連接報錯提示oracle initialization or shutdown in progress

於是進入Oracle服務器查看原因，調整步驟如下：

第一步：sqlplus /NOLOG

第二步：SQL> connect sys/change_on_install as sysdba;
Connected.

第三步：SQL> shutdown normal
ORA-01109: database not open


Database dismounted.
ORACLE instance shut down.
第四步：SQL> startup mount
ORACLE instance started.

Total System Global Area 2505338880 bytes
Fixed Size		    2230952 bytes
Variable Size		 1728054616 bytes
Database Buffers	  754974720 bytes
Redo Buffers		   20078592 bytes
Database mounted.
第五步：SQL> alter database open;
alter database open
*
ERROR at line 1:
ORA-01157: cannot identify/lock data file 45 - see DBWR trace file
ORA-01110: data file 45: '/data/oradbs/cqna_rdm.dbf'


第六步：
SQL> alter database datafile '/data/oradbs/cqna_rdm.dbf' offline drop; 

Database altered.

第七步：
SQL> shutdown normal
ORA-01109: database not open


Database dismounted.
ORACLE instance shut down.
第八步：
SQL> startup mount
ORACLE instance started.

Total System Global Area 2505338880 bytes
Fixed Size		    2230952 bytes
Variable Size		 1728054616 bytes
Database Buffers	  754974720 bytes
Redo Buffers		   20078592 bytes
Database mounted.
第九步：
SQL> alter database open;

Database altered.