Oracle Conn/as SYSDBA After the display garbled "??? "And ORA-01081:

First, Conn/as sysdba display garbled "??? “

1. Sqlplus/nolog

2. Conn/as SYSDBA Display???

3. Workaround:

   To view the database language:

   Sql> SELECT * from props$ where name = ' Nls_language ';

   Setting Language:

   Sql>update props$ SET value$= ' Simplified Chinese ' WHERE name= ' nls_language ';

   If it is still garbled, run the following statement.

   sql> $set nls_language = american_america.us7ascii

Ii. display ORA-01081 When starting an Oracle instance:????????? oracle-??????

In fact, the Oracle instance has started, so ORA-01081: Unable to start Oracle that is already running.

Shutdown immediate close and proceed

Startup Nomount can be turned on again.