Dosis de tecnología a la vena

Un problema común que siempre se encuentra en la administracion de BD, son los problemas de performance en donde por lo general se encuentran sesiones bloqueadas, desde Oracle-Base podemos utilizar este script para poder detectar este tipo de problemas


-- File Name : http://www.oracle-base.com/dba/monitoring/locked_objects.sql
-- Author : DR Timothy S Hall
-- Description : Lists all locked objects for whole RAC.
-- Requirements : Access to the V$ views.
-- Call Syntax : @locked_objects
-- Last Modified: 15/07/2000



SET LINESIZE 500
SET PAGESIZE 1000
SET VERIFY OFF
COLUMN owner FORMAT A15
COLUMN username FORMAT A20
COLUMN object_owner FORMAT A15
COLUMN object_name FORMAT A25
COLUMN locked_mode FORMAT A15
SELECT b.inst_id AS id,
b.session_id AS sid,
NVL(b.oracle_username, '(oracle)') AS username,
a.owner AS object_owner,
a.object_name,
Decode(b.locked_mode, 0, 'None',
1, 'Null (NULL)',
2, 'Row-S (SS)',
3, 'Row-X (SX)',
4, 'Share (S)',
5, 'S/Row-X (SSX)',
6, 'Exclusive (X)',
b.locked_mode) locked_mode,
b.os_user_name
FROM dba_objects a,
gv$locked_object b
WHERE a.object_id = b.object_id
ORDER BY 1, 2, 3, 4;
SET PAGESIZE 14
SET VERIFY ON