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SQL> conn sys as sysdba;
SQL> select username,account_status from dba_users;
SQL> alter user sysman account unlock;
SQL>alter user xxx identified by xxx;
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1.view ÏÞÖÆ
create or replace view my_view01
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with check option
/
2.synonym ͬÒå´Ê
create synonym dept for scott.dept;
select * from dept;
3.sysdba ¹«¹²
drop synonym dept;
create public synonym dept for scott.dept;
desc dba_synonyms
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emctl stop dbconsole
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