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我的oracle使用的时候经常有出现这样的错误提示:
ERROR:
ORA-12541: TNS:no listener
不知道这个是什么原因导致的...
另外有个问题请教:
我原先有个表空间mytest01.dbf,后来我将它删除了,现在进sqplplus就出现下面的问题:
SQL> startup open orcl;
ORACLE instance started.
Total System Global Area 167772160 bytes
Fixed Size 1218316 bytes
Variable Size 71305460 bytes
Database Buffers 92274688 bytes
Redo Buffers 2973696 bytes
Database mounted.
ORA-01157: cannot identify/lock data file 6 - see DBWR trace file
ORA-01110: data file 6: '/u01/app/oracle/oradata/mytest01.dbf'
SQL> conn system/oracle@orcl as sysdba;
ERROR:
ORA-12541: TNS:no listener
Warning: You are no longer connected to ORACLE.
SQL>
不知道如何解决? |
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