BLOCKING SESSION

BLOCKING SESSION
==================
set pages 1000 lines 1000
col owner for a20
col object_name for a34
col osuser for a15
col machine for a25
col object_type for a10
col inst_id for a5
select c.owner,c.object_name,c.object_type,b.sid,b.serial#, b.status, b.osuser, b.machine,b.inst_id
from gv$locked_object a ,gv$session b,dba_objects c
where b.sid = a.session_id and a.object_id = c.object_id;select s.blocking_session,s.sid,s.serial#,s.seconds_in_wait from gv$session s
where blocking_session is not null;
select SID,SESS_SERIAL#,BLOCKER_SID,BLOCKER_SESS_SERIAL#,BLOCKER_INSTANCE_ID from gV$SESSION_BLOCKERS;

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