急！！！现在正用的DB2数据库显示乱码了
如题，我尝试$ db2set db2codepage=819却报下面的错
DBI1306N The instance profile is not defined.
Explanation:
The instance is not defined in the target machine registry.
User response:
Specify an existing instance name or create the required instance.
备注：AIX 6.1+DB2 9.7.1
DBI1306N The instance profile is not defined.
Explanation:
The instance is not defined in the target machine registry.
User response:
Specify an existing instance name or create the required instance.
备注：AIX 6.1+DB2 9.7.1