更改Oracle 11g系统密码

我想在11G Oracle中更改系统密码

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在Cmd中输入命令时

C:\Users\ranvi>sqlplus "/as sysdba"

SQL*Plus: Release 11.2.0.1.0 Production on Tue Oct 8 20:59:06 2019

Copyright (c) 1982, 2010, Oracle.  All rights reserved.

ERROR:
ORA-01031: insufficient privileges

Enter user-name:

我就是这样做的：

c:\Temp>sqlplus system

SQL*Plus: Release 11.2.0.2.0 Production on Uto Lis 8 20:38:05 2019

Copyright (c) 1982, 2014, Oracle.  All rights reserved.

Enter password:

Connected to:
Oracle Database 11g Express Edition Release 11.2.0.2.0 - 64bit Production

SQL>

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系统

不必像

sysdba

那样连接（但

sys

需要）：

因此：

“/as sysdba”语法指示操作系统身份验证。为了成功，您的用户需要是Windows组“ORA_DBA”的成员

c:\Temp>sqlplus sys

SQL*Plus: Release 11.2.0.2.0 Production on Uto Lis 8 20:38:49 2019

Copyright (c) 1982, 2014, Oracle.  All rights reserved.

Enter password:
ERROR:
ORA-28009: connection as SYS should be as SYSDBA or SYSOPER


Enter user-name:

c:\Temp>sqlplus sys as sysdba

SQL*Plus: Release 11.2.0.2.0 Production on Uto Lis 8 20:39:17 2019

Copyright (c) 1982, 2014, Oracle.  All rights reserved.

Enter password:

Connected to:
Oracle Database 11g Express Edition Release 11.2.0.2.0 - 64bit Production

SQL>