select owner,object_name from dba_objects where object_type='DATABASE LINK';#查询出dba用户下的dblink
select * from user_objects t where t.object_type='DATABASE LINK' #查询当前用户下的dblink
select owner,object_name from dba_objects where object_type='DATABASE LINK';#查询出dba用户下的dblink
select * from user_objects t where t.object_type='DATABASE LINK' #查询当前用户下的dblink
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