34 lines
1.0 KiB
MySQL
34 lines
1.0 KiB
MySQL
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-- Copyright 2018 Tanel Poder. All rights reserved. More info at http://tanelpoder.com
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-- Licensed under the Apache License, Version 2.0. See LICENSE.txt for terms & conditions.
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BREAK ON snap_begin SKIP 1 ON snap_end ON event_name
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COL event_name FOR A40
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SELECT
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CAST(begin_interval_time AS DATE) snap_begin
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, TO_CHAR(CAST(end_interval_time AS DATE), 'HH24:MI') snap_end
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, event_name
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, wait_time_milli
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, CASE WHEN wait_count >= LAG(wait_count) OVER (PARTITION BY event_name,wait_time_milli ORDER BY CAST(begin_interval_time AS DATE)) THEN
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wait_count - LAG(wait_count) OVER (PARTITION BY event_name,wait_time_milli ORDER BY CAST(begin_interval_time AS DATE))
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ELSE
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wait_count
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END wait_count
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FROM
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dba_hist_snapshot
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NATURAL JOIN
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dba_hist_event_histogram
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WHERE
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begin_interval_time > SYSDATE - 1/24
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--AND event_name LIKE 'ASM file metadata operation'
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--AND event_name LIKE 'flashback log switch'
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-- AND event_name LIKE 'KSV master wait'
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AND wait_class = 'User I/O'
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ORDER BY
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event_name
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, snap_begin
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, wait_time_milli
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/
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