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SQL> create user "cole" identified by "123456";
User created
SQL> grant dba to "cole";
Grant succeeded
SQL> grant connect to "cole";
Grant succeeded
SQL> commit;
Commit complete
1,那些是系统表 你可以不用管它 $这个是系统表的特殊标记
2、要了解权限的话可以上网查
conn "cole"/123456;