2026-03-12 20:23:15

vdh/top_segments_io.sql

@@ -0,0 +1,49 @@
+column owner format a30
+column object_name format a30
+column subobject_name format a30
+column statistic_name format a30
+column object_type format a20
+column value format 9G999G999G999G990D00
+column name format a30 heading "(P)DB NAME"
+
+break on statistic_name skip 1
+
+select
+  statistic_name,
+  name,
+  owner,
+  object_name,
+  subobject_name,
+  object_type,
+  value
+from
+  ( select
+      segstat.statistic_name,
+      con.name,
+      segstat.owner,
+      segstat.object_name,
+      segstat.subobject_name,
+      segstat.object_type,
+      segstat.value,
+      row_number() 
+        over ( partition by statistic_name 
+               order by value desc
+             ) rn
+    from
+      v$segment_statistics    segstat
+        join v$containers     con
+          on ( segstat.con_id = con.con_id )
+    where
+      statistic_name in
+        ( 'physical writes', 'physical reads', 'physical reads direct', 'physical writes direct', 
+          'logical reads', 'segment scans'
+        )
+  )
+where
+  rn <= 5
+order by
+  statistic_name,
+  rn
+;
+
+clear breaks