Oracle 数据库查看具有sysdba系统权限用户，设置、重置sys用户密码

C:\Users\Administrator>sqlplus / as sysdba
SQL*Plus: Release 11.2.0.3.0 Production on 星期二 11月 24 13:58:34 2020
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连接到:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> show user
USER 为 "SYS"
SQL> alter user sys identified by 1;
用户已更改。