select * from v$locked_object
select * from v$lock
select spid from v$process p where p.addr='9F2B64FC'
select * from v$session
select * from v$lock where kaddr='9F2B64FC'
select * from v$process
select * from v$waitstat
select * from dba_objects where object_id='154624';
select * from yKEHR.b_employees where CHNNAME='?撤?'
select object_id,object_name from user_objects where object_name='EMP';
select * from dba_profiles
select * from dba_users
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