2026-03-12 20:23:15

vdh/top_optstat_durations.sql

@@ -0,0 +1,44 @@
+/* list the top 10 cbo stats gathering durations
+*/
+
+set linesize 300
+set pages 50000
+
+column target format a64
+column target_type format a25
+column nbr_blocks format 9G999G999G999
+column start_time_str format a30
+column end_time_str format a30
+column status format a15
+column duration format a15
+column estimated_cost format 999G999
+column notes_xml format a220
+
+
+with stat_tasks
+as
+( select
+    target,
+    target_type,
+    target_size nbr_blocks,
+    to_char(start_time, 'DD/MM/YYYY HH24:MI:SS TZH:TZM') start_time_str,
+    to_char(end_time, 'DD/MM/YYYY HH24:MI:SS TZH:TZM') end_time_str,
+    cast ((end_time - start_time) as interval day(2) to second(0)) duration,
+    status,
+    estimated_cost
+  from
+    dba_optstat_operation_tasks
+)
+select
+  *
+from
+  ( select
+      *
+    from
+      stat_tasks
+    order by
+      duration desc
+  )
+where
+  rownum <= 10
+;