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oracle 常用命令(檢視oracle字符集)

select userenv('language') from dual;    檢視oracle字符集

alter user scott account unlock; 解鎖

select username,lock_date from dba_users where username='scott';    檢視鎖定時間

select b.owner,b.object_name,a.session_id,a.locked_mode from v$locked_object a,dba_objects b where b.object_id = a.object_id;    檢視被鎖定的表