Environment variable ORACLE_UNQNAME not defined

C:\Users\Administrator>emctl status dbconsole

Environment variable ORACLE_UNQNAME not defined. Please set ORACLE_UNQNAME to database uniquename.

C:\Users\Administrator>emctl stop dbconsole

Environment variable ORACLE_UNQNAME not defined. Please set ORACLE_UNQNAME to database uniquename.

C:\Users\Administrator>set oracle_unqname=$orcl

C:\Users\Administrator>emctl status dbconsole

OC4J Configuration issue. E:\app\CQ\product\11.2.0\dbhome_1/oc4j/j2ee/OC4J_DBConsole_CQ-PC_$orcl not found.

C:\Users\Administrator>set oracle_unqname=orcl

C:\Users\Administrator>emctl status dbconsole

Oracle Enterprise Manager 11g Database Control Release 11.2.0.1.0

Copyright (c) 1996, 2010 Oracle Corporation. All rights reserved.

https://localhost:1158/em/console/aboutApplication

Oracle Enterprise Manager 11g is running.

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Logs are generated in directory E:\app\Administrator\product\11.2.0\dbhome_1/Administrator_orcl/sysman/log

总之，一句话，set oracle_unqname=orcl。注：orcl是SID。