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    <p>I would use this stored procedure to generate the intervals you need into the temp table named <strong>time_intervals</strong>, then JOIN and aggregate your data table with the temp <strong>time_intervals</strong> table.</p> <p>The procedure can generate intervals of all the different types you see specified in it: </p> <pre><code>call make_intervals('2009-01-01 00:00:00','2009-01-10 00:00:00',1,'DAY') . select * from time_intervals . interval_start interval_end ------------------- ------------------- 2009-01-01 00:00:00 2009-01-01 23:59:59 2009-01-02 00:00:00 2009-01-02 23:59:59 2009-01-03 00:00:00 2009-01-03 23:59:59 2009-01-04 00:00:00 2009-01-04 23:59:59 2009-01-05 00:00:00 2009-01-05 23:59:59 2009-01-06 00:00:00 2009-01-06 23:59:59 2009-01-07 00:00:00 2009-01-07 23:59:59 2009-01-08 00:00:00 2009-01-08 23:59:59 2009-01-09 00:00:00 2009-01-09 23:59:59 . call make_intervals('2009-01-01 00:00:00','2009-01-01 02:00:00',10,'MINUTE') . select * from time_intervals . interval_start interval_end ------------------- ------------------- 2009-01-01 00:00:00 2009-01-01 00:09:59 2009-01-01 00:10:00 2009-01-01 00:19:59 2009-01-01 00:20:00 2009-01-01 00:29:59 2009-01-01 00:30:00 2009-01-01 00:39:59 2009-01-01 00:40:00 2009-01-01 00:49:59 2009-01-01 00:50:00 2009-01-01 00:59:59 2009-01-01 01:00:00 2009-01-01 01:09:59 2009-01-01 01:10:00 2009-01-01 01:19:59 2009-01-01 01:20:00 2009-01-01 01:29:59 2009-01-01 01:30:00 2009-01-01 01:39:59 2009-01-01 01:40:00 2009-01-01 01:49:59 2009-01-01 01:50:00 2009-01-01 01:59:59 . I specified an interval_start and interval_end so you can aggregate the data timestamps with a "between interval_start and interval_end" type of JOIN. . Code for the proc: . -- drop procedure make_intervals . CREATE PROCEDURE make_intervals(startdate timestamp, enddate timestamp, intval integer, unitval varchar(10)) BEGIN -- ************************************************************************* -- Procedure: make_intervals() -- Author: Ron Savage -- Date: 02/03/2009 -- -- Description: -- This procedure creates a temporary table named time_intervals with the -- interval_start and interval_end fields specifed from the startdate and -- enddate arguments, at intervals of intval (unitval) size. -- ************************************************************************* declare thisDate timestamp; declare nextDate timestamp; set thisDate = startdate; -- ************************************************************************* -- Drop / create the temp table -- ************************************************************************* drop temporary table if exists time_intervals; create temporary table if not exists time_intervals ( interval_start timestamp, interval_end timestamp ); -- ************************************************************************* -- Loop through the startdate adding each intval interval until enddate -- ************************************************************************* repeat select case unitval when 'MICROSECOND' then timestampadd(MICROSECOND, intval, thisDate) when 'SECOND' then timestampadd(SECOND, intval, thisDate) when 'MINUTE' then timestampadd(MINUTE, intval, thisDate) when 'HOUR' then timestampadd(HOUR, intval, thisDate) when 'DAY' then timestampadd(DAY, intval, thisDate) when 'WEEK' then timestampadd(WEEK, intval, thisDate) when 'MONTH' then timestampadd(MONTH, intval, thisDate) when 'QUARTER' then timestampadd(QUARTER, intval, thisDate) when 'YEAR' then timestampadd(YEAR, intval, thisDate) end into nextDate; insert into time_intervals select thisDate, timestampadd(MICROSECOND, -1, nextDate); set thisDate = nextDate; until thisDate &gt;= enddate end repeat; END; </code></pre> <p>Similar example data scenario at the bottom of <a href="https://stackoverflow.com/questions/373490/insert-dates-in-the-return-from-a-query-where-there-is-none/373734#373734">this post</a>, where I built a similar function for SQL Server.</p>
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    1. POGet a list of dates between two dates
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    1. COI was personally hoping for something similar to generated sequences in PostgreSQL.
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