v1

Author: tanelpoder

ash/sqlid_dbtime_buckets.sql

@@ -0,0 +1,64 @@
+-- Copyright 2018 Tanel Poder. All rights reserved. More info at https://tanelpoder.com
+-- Licensed under the Apache License, Version 2.0. See LICENSE.txt for terms & conditions.
+
+
+COL approx_elapsed_time FOR A30
+
+WITH ash AS (
+    SELECT
+        sql_id
+      , session_id
+      , sample_time
+      , sample_time - CAST(MIN(sql_exec_start) 
+          OVER(PARTITION BY session_id,session_serial#,sql_exec_start,sql_exec_id)
+          AS TIMESTAMP) elapsed_time
+      , sql_exec_start
+      , sql_exec_id
+      , session_state
+      , event
+      , machine
+      , module
+    FROM
+        v$active_session_history
+    WHERE
+        sql_id = '&1'
+    AND &2
+    AND sample_time BETWEEN &3 AND &4
+    GROUP BY
+        sql_id
+      , session_id
+      , session_serial#
+      , sample_time
+      , sql_exec_start
+      , sql_exec_id
+      , session_state
+      , event
+      , machine
+      , module
+),
+longrunning AS (
+SELECT * FROM ash
+WHERE
+    elapsed_time > INTERVAL '1' SECOND
+)
+SELECT
+    sql_id
+  , sql_exec_start
+    -- an earlier analytic function already does the "partition by session_id,session_serial#"
+  , MAX(elapsed_time) approx_elapsed_time
+  , session_state
+  , event
+  , COUNT(*) seconds
+  , COUNT(DISTINCT session_id) sesssions
+FROM longrunning
+GROUP BY
+    sql_id
+  , sql_exec_start
+  , session_state
+  , event
+ORDER BY
+    sql_id
+  , sql_exec_start
+  , COUNT(*) DESC
+/
+