C:\Users\Administrator>echo %ORACLE_SID%

%ORACLE_SID%

C:\Users\Administrator>set ORACLE_SID=orcl

C:\Users\Administrator>sqlplus / as sysdba

SQL*Plus: Release 11.2.0.1. Production on 星期日 9月  :: 

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连接到:

Oracle Database 11g Enterprise Edition Release 11.2.0.1. - Production

With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> alter user system identified by ;