2026-03-12 20:23:15

vdh/sql_history_stats2_wip.sql

@@ -0,0 +1,85 @@
+set linesize 200
+set pages 50000
+set verify off
+
+column snap_id                  format 99999999             heading "snap id"
+column begin_time               format a12                  heading "begin time"
+column end_time                 format a12                  heading "end time"
+column sql_id                   format a15                  heading "sql id"
+column executions_delta         format 999G999G999          heading "executions|delta"
+column elapsed_time_delta       format 999G999G999G999      heading "elapsed time|delta (µs)"
+column disk_reads_delta         format 999G999G999          heading "disk reads|delta"
+column buffer_gets_delta        format 999G999G999          heading "buffer gets|delta"
+column iowait_delta             format 999G999G999G999      heading "io wait|delta (µs)"
+column clwait_delta             format 999G999G999G999      heading "cluster wait|delta (µs)"
+
+prompt Enter the begindate in the format DD/MM/YYYY HH24:MI
+accept start_time prompt 'begin date: '
+
+prompt Enter the enddate in the format DD/MM/YYYY HH24:MI
+accept end_time prompt 'end date: '
+
+prompt Enter the name of the program
+accept program prompt "program: "
+
+
+break on snap_id skip 1 on begin_time on end_time
+
+compute sum of elapsed_time_delta on snap_id
+
+with 
+stat as
+  ( select
+      snap_id,
+      sql_id,
+      executions_delta,
+      elapsed_time_delta,
+      disk_reads_delta,
+      buffer_gets_delta,
+      iowait_delta,
+      clwait_delta
+    from
+      dba_hist_sqlstat
+    where
+      sql_id in
+        ( select
+            sql_id
+          from
+            v$active_session_history   ash
+          where
+            ash.program = '&program'
+            and ash.sample_time between
+              to_date('&start_time', 'DD/MM/YYYY HH24:MI')
+              and to_date('&end_time', 'DD/MM/YYYY HH24:MI')
+        )
+  )
+select
+  snap.snap_id,
+  to_char(snap.begin_interval_time, 'DD/MM HH24:MI')  begin_time,
+  to_char(snap.end_interval_time, 'DD/MM HH24:MI')   end_time,
+  stat.sql_id,
+  stat.executions_delta,
+  stat.elapsed_time_delta,
+  stat.disk_reads_delta,
+  stat.buffer_gets_delta,
+  stat.iowait_delta,
+  stat.clwait_delta
+from
+  dba_hist_snapshot    snap, 
+  stat
+where
+  snap.snap_id = stat.snap_id(+)
+  and snap.begin_interval_time between
+    to_date('&start_time', 'DD/MM/YYYY HH24:MI')
+    and to_date('&end_time', 'DD/MM/YYYY HH24:MI')
+order by
+  snap.snap_id,
+  stat.sql_id
+;
+
+clear breaks
+clear computes
+
+undefine start_time
+undefine end_time
+undefine program