DB2: To tail db2diag

 db2diag -f

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Oracle: To clean up WRI$_ADV_OBJECTS

 set linesize 200; select segment_name, segment_type, bytes from dba_segments where tablespace_name='SYSAUX' order by bytes asc; COL OCCUPANT_NAME FORMAT A30 SELECT OCCUPANT_NAME,SPACE_USAGE_KBYTES FROM V$SYSAUX_OCCUPANTS ORDER BY SPACE_USAGE_KBYTES DESC; COL SEGMENT_NAME FORMAT A30 COL OWNER FORMAT A10 COL TABLESPACE_NAME FORMAT A10 COL SEGMENT_TYPE FORMAT A15 SELECT * FROM (SELECT SEGMENT_NAME,OWNER,TABLESPACE_NAME,BYTES/1024/1024 "SIZE(MB)",SEGMENT_TYPE FROM DBA_SEGMENTS WHERE TABLESPACE_NAME='SYSAUX' ORDER BY BYTES DESC) WHERE ROWNUM<=10; 1.  automatic clean-up default 31 days           SELECT dbms_stats.get_stats_history_availability from Dual; 2. modify retention policy        exec  dbms_stats.alter_stats_history_retention (14); 3. a manual cleaning  exec dbms_stats.purge_stats (sysdate-14);   ALTER TABLE WRI$_ADV_OBJECTS MOVE; ALTER INDEX WRI$_ADV_OBJECTS_IDX_01 REBUILD; ALTER INDEX WRI$_ADV_OBJECTS_IDX_02 R...
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