帮忙解决ORA-01157的问题
帮忙解决ORA-01157的问题信息如下：
SQL> startup
ORACLE instance started.
Total System Global Area784998400 bytes
Fixed Size 2163800 bytes
Variable Size 239078312 bytes
Database Buffers 536870912 bytes
Redo Buffers 6885376 bytes
Database mounted.
ORA-01157: cannot identify/lock data file 7 - see DBWR trace file
ORA-01110: data file 7: '/dev/vg_index/rsdp_dls_dlscidx_data_0001'
然后：
SQL> alter database datafile '/dev g_data/rsdp_dls_dlsc_data_0001' offline drop;
Database altered.
但是还是提示问题存在：
SQL> alter database open;
alter database open
*
ERROR at line 1:
ORA-01157: cannot identify/lock data file 7 - see DBWR trace file
ORA-01110: data file 7: '/dev g_index/rsdp_dls_dlscidx_data_0001'
文件：
rsdp_dls_dlsc_data_0001 -> /dev/raw/raw21
请问怎么解决该问题？
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