The air quality data we recently began to measure has been expanded to include statistics for this month, this year and all-time. This data is now available on the this month and year and all-time record pages.
In the short period that we have been measuring air quality the air is exceptionally clean. For the vast majority of the time the particulates and air quality index values have been extremely low (good) and have been elevated to a slight degree only for fairly short periods of time.
To include these new statistics changes were required to be made to our database. Since the recording of air quality began from 26 December 2020, a routine is ran at the start of each day to fetch the data from the previous day to insert a new row into a database table for that day. However generally only the averages and maximums were shown, without the earliest time of the occurrence. With these improvements now the averages, minimum and maximums are measured for each day along with the time of minimums and maximums.
However, it should noted that these additions began from 7 February 2021, because we only retain the real-time data for 7 days (for data storage reasons). Therefore the time of occurrence will not be shown for statistics before this date. Also we collecting a vast range of daily parameters, most of which haven’t been published to a great deal on the web site, but is being collected for completeness and for future analysis.
To provide a bit more information about how this works a MySQL database procedure (as shown below) is scheduled to run at the start of each day to insert the previous day data into a table of daily air quality averages and extremes. This uses the ROW_NUMBER window function to calculate the earliest time for each individual minimum and maximum for each day. A query for each of one of these calculations are then joined to a query that essentially merges these calculations into one table. Because these calculations are rather expensive a variable retrieves the latest date of data already inserted into the data to limit the quantity of data that is calculated to only the data not already captured in the daily table.
These queries are both performed on the real-time table (every 10 seconds) and an 5 minute interval logged data table, with the results inserted into temporary tables. These two temporary tables are then used to determine the greatest value of each of these data sources to insert the data for each column of data. This is so that the data is suitably captured due any possible network outages that may affect the currency of data. The SQL COALESCE function is used to return the first non- null value from these data sources, with preference provided to the Real-time table.
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DELIMITER $$ CREATE DEFINER=`root`@`localhost` PROCEDURE `PopulateDailyAirQual`() COMMENT 'Procedure to populate daily air quality ' BEGIN DECLARE exit handler for SQLEXCEPTION BEGIN GET DIAGNOSTICS CONDITION 1 @sqlstate = RETURNED_SQLSTATE, @errno = MYSQL_ERRNO, @text = MESSAGE_TEXT; SET @full_error = CONCAT("ERROR ", @errno, " (", @sqlstate, "): ", @text); SELECT @full_error; END; SET time_zone="+10:00"; -- determine the most recent data already inserted into table SET @lastUpdated = (select DATE(LogDate) FROM DailyAirQual ORDER BY LogDate DESC LIMIT 1); -- values from realtime table DROP TEMPORARY TABLE IF EXISTS rtData; CREATE TEMPORARY TABLE IF NOT EXISTS rtData ( LogDateRT DATE NOT NULL, OutPm1_avgRT DECIMAL (5,1) NULL, OutPm1_minRT DECIMAL (5,1) NULL, OutTPm1_minRT TIME NULL, OutPm1_maxRT DECIMAL (5,1) NULL, OutTPm1_maxRT TIME NULL, OutPm2p5_avgRT DECIMAL (5,1) NULL, OutPm2p5_minRT DECIMAL (5,1) NULL, OutTPm2p5_minRT TIME NULL, OutPm2p5_maxRT DECIMAL (5,1) NULL, OutTPm2p5_maxRT TIME NULL, OutPm2p5_1hr_avgRT DECIMAL (5,1) NULL, OutPm2p5_1hr_minRT DECIMAL (5,1) NULL, OutTpm2p5_1hr_minRT TIME NULL, OutPm2p5_1hr_maxRT DECIMAL (5,1) NULL, OutTpm2p5_1hr_maxRT TIME NULL, OutPm2p5_3hr_avgRT DECIMAL (5,1) NULL, OutPm2p5_3hr_minRT DECIMAL (5,1) NULL, OutTpm2p5_3hr_minRT TIME NULL, OutPm2p5_3hr_maxRT DECIMAL (5,1) NULL, OutTpm2p5_3hr_maxRT TIME NULL, OutPm2p5_24hr_avgRT DECIMAL (5,1) NULL, OutPm2p5_24hr_minRT DECIMAL (5,1) NULL, OutTpm2p5_24hr_minRT TIME NULL, OutPm2p5_24hr_maxRT DECIMAL (5,1) NULL, OutTpm2p5_24hr_maxRT TIME NULL, OutPm10_avgRT DECIMAL (5,1) NULL, OutPm10_minRT DECIMAL (5,1) NULL, OutTPm10_minRT TIME NULL, OutPm10_maxRT DECIMAL (5,1) NULL, OutTPm10_maxRT TIME NULL, OutPm10_1hr_avgRT DECIMAL (5,1) NULL, OutPm10_1hr_minRT DECIMAL (5,1) NULL, OutTpm10_1hr_minRT TIME NULL, OutPm10_1hr_maxRT DECIMAL (5,1) NULL, OutTpm10_1hr_maxRT TIME NULL, OutPm10_3hr_avgRT DECIMAL (5,1) NULL, OutPm10_3hr_minRT DECIMAL (5,1) NULL, OutTpm10_3hr_minRT TIME NULL, OutPm10_3hr_maxRT DECIMAL (5,1) NULL, OutTpm10_3hr_maxRT TIME NULL, OutPm10_24hr_avgRT DECIMAL (5,1) NULL, OutPm10_24hr_minRT DECIMAL (5,1) NULL, OutTpm10_24hr_minRT TIME NULL, OutPm10_24hr_maxRT DECIMAL (5,1) NULL, OutTpm10_24hr_maxRT TIME NULL, OutAqiPm2p5_avgRT DECIMAL (5,1) NULL, OutAqiPm2p5_minRT DECIMAL (5,1) NULL, OutTAqiPm2p5_minRT TIME NULL, OutAqiPm2p5_maxRT DECIMAL (5,1) NULL, OutTAqiPm2p5_maxRT TIME NULL, OutAqiPm2p5_1hr_avgRT DECIMAL (5,1) NULL, OutAqiPm2p5_1hr_minRT DECIMAL (5,1) NULL, OutTAqiPm2p5_1hr_minRT TIME NULL, OutAqiPm2p5_1hr_maxRT DECIMAL (5,1) NULL, OutTAqiPm2p5_1hr_maxRT TIME NULL, OutAqiPm2p5_3hr_avgRT DECIMAL (5,1) NULL, OutAqiPm2p5_3hr_minRT DECIMAL (5,1) NULL, OutTAqiPm2p5_3hr_minRT TIME NULL, OutAqiPm2p5_3hr_maxRT DECIMAL (5,1) NULL, OutTAqiPm2p5_3hr_maxRT TIME NULL, OutAqiPm2p5_24hr_avgRT DECIMAL (5,1) NULL, OutAqiPm2p5_24hr_minRT DECIMAL (5,1) NULL, OutTAqiPm2p5_24hr_minRT TIME NULL, OutAqiPm2p5_24hr_maxRT DECIMAL (5,1) NULL, OutTAqiPm2p5_24hr_maxRT TIME NULL, OutAqiPm10_avgRT DECIMAL (5,1) NULL, OutAqiPm10_minRT DECIMAL (5,1) NULL, OutTAqiPm10_minRT TIME NULL, OutAqiPm10_maxRT DECIMAL (5,1) NULL, OutTAqiPm10_maxRT TIME NULL, OutAqiPm10_1hr_avgRT DECIMAL (5,1) NULL, OutAqiPm10_1hr_minRT DECIMAL (5,1) NULL, OutTAqiPm10_1hr_minRT TIME NULL, OutAqiPm10_1hr_maxRT DECIMAL (5,1) NULL, OutTAqiPm10_1hr_maxRT TIME NULL, OutAqiPm10_3hr_avgRT DECIMAL (5,1) NULL, OutAqiPm10_3hr_minRT DECIMAL (5,1) NULL, OutTAqiPm10_3hr_minRT TIME NULL, OutAqiPm10_3hr_maxRT DECIMAL (5,1) NULL, OutTAqiPm10_3hr_maxRT TIME NULL, OutAqiPm10_24hr_avgRT DECIMAL (5,1) NULL, OutAqiPm10_24hr_minRT DECIMAL (5,1) NULL, OutTAqiPm10_24hr_minRT TIME NULL, OutAqiPm10_24hr_maxRT DECIMAL (5,1) NULL, OutTAqiPm10_24hr_maxRT TIME NULL ) AS ( SELECT DATE(Realtime.LogDateTime) AS LogDateRT, ag.OutPm1_avgRT AS OutPm1_avgRT, ROUND(MIN(a1.pm1),1) AS OutPm1_minRT, a1.OutTPm1_minRT, ROUND(MAX(b1.pm1),1) AS OutPm1_maxRT, b1.OutTPm1_maxRT, ag.OutPm2p5_avgRT AS OutPm2p5_avgRT, ROUND(MIN(c1.pm2p5),1) AS OutPm2p5_minRT, c1.OutTPm2p5_minRT, ROUND(MAX(d1.pm2p5),1) AS OutPm2p5_maxRT, d1.OutTPm2p5_maxRT, ag.OutPm2p5_1hr_avgRT AS OutPm2p5_1hr_avgRT, ROUND(MIN(e1.pm2p5_1hr),1) AS OutPm2p5_1hr_minRT, e1.OutTPm2p5_1hr_minRT, ROUND(MAX(f1.pm2p5_1hr),1) AS OutPm2p5_1hr_maxRT, f1.OutTpm2p5_1hr_maxRT, ag.OutPm2p5_3hr_avgRT AS OutPm2p5_3hr_avgRT, ROUND(MIN(g1.pm2p5_3hr),1) AS OutPm2p5_3hr_minRT, g1.OutTPm2p5_3hr_minRT, ROUND(MAX(h1.pm2p5_3hr),1) AS OutPm2p5_3hr_maxRT, h1.OutTPm2p5_3hr_maxRT, ag.OutPm2p5_24hr_avgRT AS OutPm2p5_24hr_avgRT, ROUND(MIN(i1.pm2p5_24hr),1) AS OutPm2p5_24hr_minRT, i1.OutTPm2p5_24hr_minRT, ROUND(MAX(j1.pm2p5_24hr),1) AS OutPm2p5_24hr_maxRT, j1.OutTPm2p5_24hr_maxRT, ag.OutPm10_avgRT AS OutPm10_avgRT, ROUND(MIN(k1.pm10),1) AS OutPm10_minRT, k1.OutTPm10_minRT, ROUND(MAX(l1.pm10),1) AS OutPm10_maxRT, l1.OutTPm10_maxRT, ag.OutPm10_1hr_avgRT AS OutPm10_1hr_avgRT, ROUND(MIN(m1.pm10_1hr),1) AS OutPm10_1hr_minRT, m1.OutTPm10_1hr_minRT, ROUND(MAX(n1.pm10_1hr),1) AS OutPm10_1hr_maxRT, n1.OutTPm10_1hr_maxRT, ag.OutPm10_3hr_avgRT AS OutPm10_3hr_avgRT, ROUND(MIN(o1.pm10_3hr),1) AS OutPm10_3hr_minRT, o1.OutTPm10_3hr_minRT, ROUND(MAX(p1.pm10_3hr),1) AS OutPm10_3hr_maxRT, p1.OutTPm10_3hr_maxRT, ag.OutPm10_24hr_avgRT AS OutPm10_24hr_avgRT, ROUND(MIN(q1.pm10_24hr),1) AS OutPm10_24hr_minRT, q1.OutTPm10_24hr_minRT, ROUND(MAX(r1.pm10_24hr),1) AS OutPm10_24hr_maxRT, r1.OutTPm10_24hr_maxRT, ag.OutAqiPm2p5_avgRT AS OutAqiPm2p5_avgRT, ROUND(MIN(a2.AQIpm2p5),1) AS OutAqiPm2p5_minRT, a2.OutTAqiPm2p5_minRT, ROUND(MAX(b2.AQIpm2p5),1) AS OutAqiPm2p5_maxRT, b2.OutTAqiPm2p5_maxRT, ag.OutAqiPm2p5_1hr_avgRT AS OutAqiPm2p5_1hr_avgRT, ROUND(MIN(c2.AQIpm2p5_1hr),1) AS OutAqiPm2p5_1hr_minRT, c2.OutTAqiPm2p5_1hr_minRT, ROUND(MAX(d2.AQIpm2p5_1hr),1) AS OutAqiPm2p5_1hr_maxRT, d2.OutTAqiPm2p5_1hr_maxRT, ag.OutAqiPm2p5_3hr_avgRT AS OutAqiPm2p5_3hr_avgRT, ROUND(MIN(e2.AQIpm2p5_3hr),1) AS OutAqiPm2p5_3hr_minRT, e2.OutTAqiPm2p5_3hr_minRT, ROUND(MAX(f2.AQIpm2p5_3hr),1) AS OutAqiPm2p5_3hr_maxRT, f2.OutTAqiPm2p5_3hr_maxRT, ag.OutAqiPm2p5_24hr_avgRT AS OutAqiPm2p5_24hr_avgRT, ROUND(MIN(g2.AQIpm2p5_24hr),1) AS OutAqiPm2p5_24hr_minRT, g2.OutTAqiPm2p5_24hr_minRT, ROUND(MAX(h2.AQIpm2p5_24hr),1) AS OutAqiPm2p5_24hr_maxRT, h2.OutTAqiPm2p5_24hr_maxRT, ag.OutAqiPm10_avgRT AS OutAqiPm10_avgRT, ROUND(MIN(i2.AQIpm10),1) AS OutAqiPm10_minRT, i2.OutTAqiPm10_minRT, ROUND(MAX(j2.AQIpm10),1) AS OutAqiPm10_maxRT, j2.OutTAqiPm10_maxRT, ag.OutAqiPm10_1hr_avgRT AS OutAqiPm10_1hr_avgRT, ROUND(MIN(k2.AQIpm10_1hr),1) AS OutAqiPm10_1hr_minRT, k2.OutTAqiPm10_1hr_minRT, ROUND(MAX(l2.AQIpm10_1hr),1) AS OutAqiPm10_1hr_maxRT, l2.OutTAqiPm10_1hr_maxRT, ag.OutAqiPm10_3hr_avgRT AS OutAqiPm10_3hr_avgRT, ROUND(MIN(m2.AQIpm10_3hr),1) AS OutAqiPm10_3hr_minRT, m2.OutTAqiPm10_3hr_minRT, ROUND(MAX(n2.AQIpm10_3hr),1) AS OutAqiPm10_3hr_maxRT, n2.OutTAqiPm10_3hr_maxRT, ag.OutAqiPm10_24hr_avgRT AS OutAqiPm10_24hr_avgRT, ROUND(MIN(o2.AQIpm10_24hr),1) AS OutAqiPm10_24hr_minRT, o2.OutTAqiPm10_24hr_minRT, ROUND(MAX(p2.AQIpm10_24hr),1) AS OutAqiPm10_24hr_maxRT, p2.OutTAqiPm10_24hr_maxRT FROM Realtime INNER JOIN( -- average values SELECT Realtime.LogDateTime AS LogDate, ROUND(AVG(Realtime.pm1),1) AS OutPm1_avgRT, ROUND(AVG(Realtime.pm2p5),1) AS OutPm2p5_avgRT, ROUND(AVG(Realtime.pm2p5_1hr),1) AS OutPm2p5_1hr_avgRT, ROUND(AVG(Realtime.pm2p5_3hr),1) AS OutPm2p5_3hr_avgRT, ROUND(AVG(Realtime.pm2p5_24hr),1) AS OutPm2p5_24hr_avgRT, ROUND(AVG(Realtime.pm10),1) AS OutPm10_avgRT, ROUND(AVG(Realtime.pm10_1hr),1) AS OutPm10_1hr_avgRT, ROUND(AVG(Realtime.pm10_3hr),1) AS OutPm10_3hr_avgRT, ROUND(AVG(Realtime.pm10_24hr),1) AS OutPm10_24hr_avgRT, ROUND(AVG(Realtime.AQIpm2p5),1) AS OutAqiPm2p5_avgRT, ROUND(AVG(Realtime.AQIpm2p5_1hr),1) AS OutAqiPm2p5_1hr_avgRT, ROUND(AVG(Realtime.AQIpm2p5_3hr),1) AS OutAqiPm2p5_3hr_avgRT, ROUND(AVG(Realtime.AQIpm2p5_24hr),1) AS OutAqiPm2p5_24hr_avgRT, ROUND(AVG(Realtime.AQIpm10),1) AS OutAqiPm10_avgRT, ROUND(AVG(Realtime.AQIpm10_1hr),1) AS OutAqiPm10_1hr_avgRT, ROUND(AVG(Realtime.AQIpm10_3hr),1) AS OutAqiPm10_3hr_avgRT, ROUND(AVG(Realtime.AQIpm10_24hr),1) AS OutAqiPm10_24hr_avgRT FROM Realtime WHERE DATE(Realtime.LogDateTime) > @lastUpdated AND DATE(Realtime.LogDateTime) < CURDATE() GROUP BY DAY(Realtime.LogDateTime), MONTH(Realtime.LogDateTime), YEAR(Realtime.LogDateTime) ) ag ON DATE(Realtime.LogDateTime) = DATE(ag.LogDate) -- a1: Pm1_minRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTPm1_minRT, pm1 FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY pm1 ASC, LogDateTime) rn FROM Realtime WHERE DATE(Realtime.LogDateTime) > @lastUpdated AND DATE(Realtime.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) a1 ON (Realtime.LogDateTime) = (a1.LogDate) -- b1: Pm1_maxRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTPm1_maxRT, pm1 FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY pm1 DESC, LogDateTime) rn FROM Realtime WHERE DATE(Realtime.LogDateTime) > @lastUpdated AND DATE(Realtime.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) b1 ON DATE(Realtime.LogDateTime) = DATE(b1.LogDate) -- c1: Pm2p5_minRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTPm2p5_minRT, pm2p5 FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY pm2p5 ASC, LogDateTime) rn FROM Realtime WHERE DATE(Realtime.LogDateTime) > @lastUpdated AND DATE(Realtime.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) c1 ON DATE(Realtime.LogDateTime) = DATE(c1.LogDate) -- d1: Pm2p5_maxRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTPm2p5_maxRT, pm2p5 FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY pm2p5 DESC, LogDateTime) rn FROM Realtime WHERE DATE(Realtime.LogDateTime) > @lastUpdated AND DATE(Realtime.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) d1 ON DATE(Realtime.LogDateTime) = DATE(d1.LogDate) -- e1: Pm2p5_1hr_minRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTpm2p5_1hr_minRT, pm2p5_1hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY pm2p5_1hr ASC, LogDateTime) rn FROM Realtime WHERE DATE(Realtime.LogDateTime) > @lastUpdated AND DATE(Realtime.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) e1 ON DATE(Realtime.LogDateTime) = DATE(e1.LogDate) -- f1: Pm2p5_1hr_maxRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTpm2p5_1hr_maxRT, pm2p5_1hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY pm2p5_1hr DESC, LogDateTime) rn FROM Realtime WHERE DATE(Realtime.LogDateTime) > @lastUpdated AND DATE(Realtime.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) f1 ON DATE(Realtime.LogDateTime) = DATE(f1.LogDate) -- g1: Pm2p5_3hr_minRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTpm2p5_3hr_minRT, pm2p5_3hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY pm2p5_3hr ASC, LogDateTime) rn FROM Realtime WHERE DATE(Realtime.LogDateTime) > @lastUpdated AND DATE(Realtime.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) g1 ON DATE(Realtime.LogDateTime) = DATE(g1.LogDate) -- h1: Pm2p5_1hr_maxRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTpm2p5_3hr_maxRT, pm2p5_3hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY pm2p5_3hr DESC, LogDateTime) rn FROM Realtime WHERE DATE(Realtime.LogDateTime) > @lastUpdated AND DATE(Realtime.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) h1 ON DATE(Realtime.LogDateTime) = DATE(h1.LogDate) -- i1: Pm2p5_24hr_minRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTpm2p5_24hr_minRT, pm2p5_24hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY pm2p5_24hr ASC, LogDateTime) rn FROM Realtime WHERE DATE(Realtime.LogDateTime) > @lastUpdated AND DATE(Realtime.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) i1 ON DATE(Realtime.LogDateTime) = DATE(i1.LogDate) -- j1: Pm2p5_24hr_maxRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTpm2p5_24hr_maxRT, pm2p5_24hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY pm2p5_24hr DESC, LogDateTime) rn FROM Realtime WHERE DATE(Realtime.LogDateTime) > @lastUpdated AND DATE(Realtime.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) j1 ON DATE(Realtime.LogDateTime) = DATE(j1.LogDate) -- k1: Pm10_minRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTPm10_minRT, pm10 FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY pm10 ASC, LogDateTime) rn FROM Realtime WHERE DATE(Realtime.LogDateTime) > @lastUpdated AND DATE(Realtime.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) k1 ON DATE(Realtime.LogDateTime) = DATE(k1.LogDate) -- l1: Pm10_maxRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTPm10_maxRT, pm10 FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY pm10 DESC, LogDateTime) rn FROM Realtime WHERE DATE(Realtime.LogDateTime) > @lastUpdated AND DATE(Realtime.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) l1 ON DATE(Realtime.LogDateTime) = DATE(l1.LogDate) -- m1: OutTpm10_1hr_minRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTpm10_1hr_minRT, pm10_1hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY pm10_1hr ASC, LogDateTime) rn FROM Realtime WHERE DATE(Realtime.LogDateTime) > @lastUpdated AND DATE(Realtime.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) m1 ON DATE(Realtime.LogDateTime) = DATE(m1.LogDate) -- n1: OutTpm10_1hr_maxRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTpm10_1hr_maxRT, pm10_1hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY pm10_1hr DESC, LogDateTime) rn FROM Realtime WHERE DATE(Realtime.LogDateTime) > @lastUpdated AND DATE(Realtime.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) n1 ON DATE(Realtime.LogDateTime) = DATE(n1.LogDate) -- o1: OutTpm10_3hr_minRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTpm10_3hr_minRT, pm10_3hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY pm10_3hr ASC, LogDateTime) rn FROM Realtime WHERE DATE(Realtime.LogDateTime) > @lastUpdated AND DATE(Realtime.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) o1 ON DATE(Realtime.LogDateTime) = DATE(o1.LogDate) -- p1: OutTpm10_3hr_minRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTpm10_3hr_maxRT, pm10_3hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY pm10_3hr DESC, LogDateTime) rn FROM Realtime WHERE DATE(Realtime.LogDateTime) > @lastUpdated AND DATE(Realtime.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) p1 ON DATE(Realtime.LogDateTime) = DATE(p1.LogDate) -- q1: OutTpm10_3hr_minRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTpm10_24hr_minRT, pm10_24hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY pm10_24hr ASC, LogDateTime) rn FROM Realtime WHERE DATE(Realtime.LogDateTime) > @lastUpdated AND DATE(Realtime.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) q1 ON DATE(Realtime.LogDateTime) = DATE(q1.LogDate) -- r1: OutTpm10_3hr_minRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTpm10_24hr_maxRT, pm10_24hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY pm10_24hr DESC, LogDateTime) rn FROM Realtime WHERE DATE(Realtime.LogDateTime) > @lastUpdated AND DATE(Realtime.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) r1 ON DATE(Realtime.LogDateTime) = DATE(r1.LogDate) -- a2: AQIpm2p5_minRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTAqiPm2p5_minRT, AQIpm2p5 FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY AQIpm2p5 ASC, LogDateTime) rn FROM Realtime WHERE DATE(Realtime.LogDateTime) > @lastUpdated AND DATE(Realtime.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) a2 ON DATE(Realtime.LogDateTime) = DATE(a2.LogDate) -- b2: AQIm2p5_maxRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTAqiPm2p5_maxRT, AQIpm2p5 FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY AQIpm2p5 DESC, LogDateTime) rn FROM Realtime WHERE DATE(Realtime.LogDateTime) > @lastUpdated AND DATE(Realtime.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) b2 ON DATE(Realtime.LogDateTime) = DATE(b2.LogDate) -- c2: AQIpm2p5_1hr_minRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTAqiPm2p5_1hr_minRT, AQIpm2p5_1hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY AQIpm2p5_1hr ASC, LogDateTime) rn FROM Realtime WHERE DATE(Realtime.LogDateTime) > @lastUpdated AND DATE(Realtime.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) c2 ON DATE(Realtime.LogDateTime) = DATE(c2.LogDate) -- d2: AQIpm2p5_1hr_maxRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTAqiPm2p5_1hr_maxRT, AQIpm2p5_1hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY AQIpm2p5_1hr DESC, LogDateTime) rn FROM Realtime WHERE DATE(Realtime.LogDateTime) > @lastUpdated AND DATE(Realtime.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) d2 ON DATE(Realtime.LogDateTime) = DATE(d2.LogDate) -- e2: AQIpm2p5_3hr_minRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTAqiPm2p5_3hr_minRT, AQIpm2p5_3hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY AQIpm2p5_3hr ASC, LogDateTime) rn FROM Realtime WHERE DATE(Realtime.LogDateTime) > @lastUpdated AND DATE(Realtime.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) e2 ON DATE(Realtime.LogDateTime) = DATE(e2.LogDate) -- f2: AQIpm2p5_3hr_maxRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTAqiPm2p5_3hr_maxRT, AQIpm2p5_3hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY AQIpm2p5_3hr DESC, LogDateTime) rn FROM Realtime WHERE DATE(Realtime.LogDateTime) > @lastUpdated AND DATE(Realtime.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) f2 ON DATE(Realtime.LogDateTime) = DATE(f2.LogDate) -- g2: AQIpm2p5_24hr_minRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTAqiPm2p5_24hr_minRT, AQIpm2p5_24hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY AQIpm2p5_24hr ASC, LogDateTime) rn FROM Realtime WHERE DATE(Realtime.LogDateTime) > @lastUpdated AND DATE(Realtime.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) g2 ON DATE(Realtime.LogDateTime) = DATE(g2.LogDate) -- h2: AQIpm2p5_24hr_maxRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTAqiPm2p5_24hr_maxRT, AQIpm2p5_24hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY AQIpm2p5_24hr DESC, LogDateTime) rn FROM Realtime WHERE DATE(Realtime.LogDateTime) > @lastUpdated AND DATE(Realtime.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) h2 ON DATE(Realtime.LogDateTime) = DATE(h2.LogDate) -- i2: AQIpm10_minRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTAqiPm10_minRT, AQIpm10 FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY AQIpm10 ASC, LogDateTime) rn FROM Realtime WHERE DATE(Realtime.LogDateTime) > @lastUpdated AND DATE(Realtime.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) i2 ON DATE(Realtime.LogDateTime) = DATE(i2.LogDate) -- j2: AQIpm10_maxRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTAqiPm10_maxRT, AQIpm10 FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY AQIpm10 DESC, LogDateTime) rn FROM Realtime WHERE DATE(Realtime.LogDateTime) > @lastUpdated AND DATE(Realtime.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) j2 ON DATE(Realtime.LogDateTime) = DATE(j2.LogDate) -- k2: AQIpm10_1hr_minRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTAqiPm10_1hr_minRT, AQIpm10_1hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY AQIpm10_1hr ASC, LogDateTime) rn FROM Realtime WHERE DATE(Realtime.LogDateTime) > @lastUpdated AND DATE(Realtime.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) k2 ON DATE(Realtime.LogDateTime) = DATE(k2.LogDate) -- l2: AQIpm10_1hr_maxRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTAqiPm10_1hr_maxRT, AQIpm10_1hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY AQIpm10_1hr DESC, LogDateTime) rn FROM Realtime WHERE DATE(Realtime.LogDateTime) > @lastUpdated AND DATE(Realtime.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) l2 ON DATE(Realtime.LogDateTime) = DATE(l2.LogDate) -- m2: AQIpm10_3hr_minRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTAqiPm10_3hr_minRT, AQIpm10_3hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY AQIpm10_3hr ASC, LogDateTime) rn FROM Realtime WHERE DATE(Realtime.LogDateTime) > @lastUpdated AND DATE(Realtime.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) m2 ON DATE(Realtime.LogDateTime) = DATE(m2.LogDate) -- n2: AQIpm10_3hr_maxRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTAqiPm10_3hr_maxRT, AQIpm10_3hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY AQIpm10_3hr DESC, LogDateTime) rn FROM Realtime WHERE DATE(Realtime.LogDateTime) > @lastUpdated AND DATE(Realtime.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) n2 ON DATE(Realtime.LogDateTime) = DATE(n2.LogDate) -- o2: AQIpm10_24hr_maxRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTAqiPm10_24hr_minRT, AQIpm10_24hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY AQIpm10_24hr ASC, LogDateTime) rn FROM Realtime WHERE DATE(Realtime.LogDateTime) > @lastUpdated AND DATE(Realtime.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) o2 ON DATE(Realtime.LogDateTime) = DATE(o2.LogDate) -- p2: AQIpm10_24hr_maxRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTAqiPm10_24hr_maxRT, AQIpm10_24hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY AQIpm10_24hr DESC, LogDateTime) rn FROM Realtime WHERE DATE(Realtime.LogDateTime) > @lastUpdated AND DATE(Realtime.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) p2 ON DATE(Realtime.LogDateTime) = DATE(p2.LogDate) ); -- values from monthly table DROP TEMPORARY TABLE IF EXISTS monthlyData; CREATE TEMPORARY TABLE IF NOT EXISTS monthlyData ( LogDate DATE NOT NULL, OutPm1_avg DECIMAL (5,1) NULL, OutPm1_min DECIMAL (5,1) NULL, OutTPm1_min TIME NULL, OutPm1_max DECIMAL (5,1) NULL, OutTPm1_max TIME NULL, OutPm2p5_avg DECIMAL (5,1) NULL, OutPm2p5_min DECIMAL (5,1) NULL, OutTPm2p5_min TIME NULL, OutPm2p5_max DECIMAL (5,1) NULL, OutTPm2p5_max TIME NULL, OutPm2p5_1hr_avg DECIMAL (5,1) NULL, OutPm2p5_1hr_min DECIMAL (5,1) NULL, OutTpm2p5_1hr_min TIME NULL, OutPm2p5_1hr_max DECIMAL (5,1) NULL, OutTpm2p5_1hr_max TIME NULL, OutPm2p5_3hr_avg DECIMAL (5,1) NULL, OutPm2p5_3hr_min DECIMAL (5,1) NULL, OutTpm2p5_3hr_min TIME NULL, OutPm2p5_3hr_max DECIMAL (5,1) NULL, OutTpm2p5_3hr_max TIME NULL, OutPm2p5_24hr_avg DECIMAL (5,1) NULL, OutPm2p5_24hr_min DECIMAL (5,1) NULL, OutTpm2p5_24hr_min TIME NULL, OutPm2p5_24hr_max DECIMAL (5,1) NULL, OutTpm2p5_24hr_max TIME NULL, OutPm10_avg DECIMAL (5,1) NULL, OutPm10_min DECIMAL (5,1) NULL, OutTPm10_min TIME NULL, OutPm10_max DECIMAL (5,1) NULL, OutTPm10_max TIME NULL, OutPm10_1hr_avg DECIMAL (5,1) NULL, OutPm10_1hr_min DECIMAL (5,1) NULL, OutTpm10_1hr_min TIME NULL, OutPm10_1hr_max DECIMAL (5,1) NULL, OutTpm10_1hr_max TIME NULL, OutPm10_3hr_avg DECIMAL (5,1) NULL, OutPm10_3hr_min DECIMAL (5,1) NULL, OutTpm10_3hr_min TIME NULL, OutPm10_3hr_max DECIMAL (5,1) NULL, OutTpm10_3hr_max TIME NULL, OutPm10_24hr_avg DECIMAL (5,1) NULL, OutPm10_24hr_min DECIMAL (5,1) NULL, OutTpm10_24hr_min TIME NULL, OutPm10_24hr_max DECIMAL (5,1) NULL, OutTpm10_24hr_max TIME NULL, OutAqiPm2p5_avg DECIMAL (5,1) NULL, OutAqiPm2p5_min DECIMAL (5,1) NULL, OutTAqiPm2p5_min TIME NULL, OutAqiPm2p5_max DECIMAL (5,1) NULL, OutTAqiPm2p5_max TIME NULL, OutAqiPm2p5_1hr_avg DECIMAL (5,1) NULL, OutAqiPm2p5_1hr_min DECIMAL (5,1) NULL, OutTAqiPm2p5_1hr_min TIME NULL, OutAqiPm2p5_1hr_max DECIMAL (5,1) NULL, OutTAqiPm2p5_1hr_max TIME NULL, OutAqiPm2p5_3hr_avg DECIMAL (5,1) NULL, OutAqiPm2p5_3hr_min DECIMAL (5,1) NULL, OutTAqiPm2p5_3hr_min TIME NULL, OutAqiPm2p5_3hr_max DECIMAL (5,1) NULL, OutTAqiPm2p5_3hr_max TIME NULL, OutAqiPm2p5_24hr_avg DECIMAL (5,1) NULL, OutAqiPm2p5_24hr_min DECIMAL (5,1) NULL, OutTAqiPm2p5_24hr_min TIME NULL, OutAqiPm2p5_24hr_max DECIMAL (5,1) NULL, OutTAqiPm2p5_24hr_max TIME NULL, OutAqiPm10_avg DECIMAL (5,1) NULL, OutAqiPm10_min DECIMAL (5,1) NULL, OutTAqiPm10_min TIME NULL, OutAqiPm10_max DECIMAL (5,1) NULL, OutTAqiPm10_max TIME NULL, OutAqiPm10_1hr_avg DECIMAL (5,1) NULL, OutAqiPm10_1hr_min DECIMAL (5,1) NULL, OutTAqiPm10_1hr_min TIME NULL, OutAqiPm10_1hr_max DECIMAL (5,1) NULL, OutTAqiPm10_1hr_max TIME NULL, OutAqiPm10_3hr_avg DECIMAL (5,1) NULL, OutAqiPm10_3hr_min DECIMAL (5,1) NULL, OutTAqiPm10_3hr_min TIME NULL, OutAqiPm10_3hr_max DECIMAL (5,1) NULL, OutTAqiPm10_3hr_max TIME NULL, OutAqiPm10_24hr_avg DECIMAL (5,1) NULL, OutAqiPm10_24hr_min DECIMAL (5,1) NULL, OutTAqiPm10_24hr_min TIME NULL, OutAqiPm10_24hr_max DECIMAL (5,1) NULL, OutTAqiPm10_24hr_max TIME NULL ) AS ( SELECT DATE(MonthlyAirQual.LogDateTime) AS LogDate, ag.OutPm1_avg AS OutPm1_avg, ROUND(MIN(a1.OutPm1),1) AS OutPm1_min, a1.OutTPm1_min, ROUND(MAX(b1.OutPm1),1) AS OutPm1_max, b1.OutTPm1_max, ag.OutPm2p5_avg AS OutPm2p5_avg, ROUND(MIN(c1.OutPm2p5),1) AS OutPm2p5_min, c1.OutTPm2p5_min, ROUND(MAX(d1.OutPm2p5),1) AS OutPm2p5_max, d1.OutTPm2p5_max, ag.OutPm2p5_1hr_avg AS OutPm2p5_1hr_avg, ROUND(MIN(e1.OutPm2p5_1hr),1) AS OutPm2p5_1hr_min, e1.OutTPm2p5_1hr_min, ROUND(MAX(f1.OutPm2p5_1hr),1) AS OutPm2p5_1hr_max, f1.OutTpm2p5_1hr_max, ag.OutPm2p5_3hr_avg AS OutPm2p5_3hr_avg, ROUND(MIN(g1.OutPm2p5_3hr),1) AS OutPm2p5_3hr_min, g1.OutTPm2p5_3hr_min, ROUND(MAX(h1.OutPm2p5_3hr),1) AS OutPm2p5_3hr_max, h1.OutTPm2p5_3hr_max, ag.OutPm2p5_24hr_avg AS OutPm2p5_24hr_avg, ROUND(MIN(i1.OutPm2p5_24hr),1) AS OutPm2p5_24hr_min, i1.OutTPm2p5_24hr_min, ROUND(MAX(j1.OutPm2p5_24hr),1) AS OutPm2p5_24hr_max, j1.OutTPm2p5_24hr_max, ag.OutPm10_avg AS OutPm10_avg, ROUND(MIN(k1.OutPm10),1) AS OutPm10_min, k1.OutTPm10_min, ROUND(MAX(l1.OutPm10),1) AS OutPm10_max, l1.OutTPm10_max, ag.OutPm10_1hr_avg AS OutPm10_1hr_avg, ROUND(MIN(m1.OutPm10_1hr),1) AS OutPm10_1hr_min, m1.OutTPm10_1hr_min, ROUND(MAX(n1.OutPm10_1hr),1) AS OutPm10_1hr_max, n1.OutTPm10_1hr_max, ag.OutPm10_3hr_avg AS OutPm10_3hr_avg, ROUND(MIN(o1.OutPm10_3hr),1) AS OutPm10_3hr_min, o1.OutTPm10_3hr_min, ROUND(MAX(p1.OutPm10_3hr),1) AS OutPm10_3hr_max, p1.OutTPm10_3hr_max, ag.OutPm10_24hr_avg AS OutPm10_24hr_avg, ROUND(MIN(q1.OutPm10_24hr),1) AS OutPm10_24hr_min, q1.OutTPm10_24hr_min, ROUND(MAX(r1.OutPm10_24hr),1) AS OutPm10_24hr_max, r1.OutTPm10_24hr_max, ag.OutAqiPm2p5_avg AS OutAqiPm2p5_avg, ROUND(MIN(a2.OutAqiPm2p5),1) AS OutAqiPm2p5_min, a2.OutTAqiPm2p5_min, ROUND(MAX(b2.OutAqiPm2p5),1) AS OutAqiPm2p5_max, b2.OutTAqiPm2p5_max, ag.OutAqiPm2p5_1hr_avg AS OutAqiPm2p5_1hr_avg, ROUND(MIN(c2.OutAqiPm2p5_1hr),1) AS OutAqiPm2p5_1hr_min, c2.OutTAqiPm2p5_1hr_min, ROUND(MAX(d2.OutAqiPm2p5_1hr),1) AS OutAqiPm2p5_1hr_max, d2.OutTAqiPm2p5_1hr_max, ag.OutAqiPm2p5_3hr_avg AS OutAqiPm2p5_3hr_avg, ROUND(MIN(e2.OutAqiPm2p5_3hr),1) AS OutAqiPm2p5_3hr_min, e2.OutTAqiPm2p5_3hr_min, ROUND(MAX(f2.OutAqiPm2p5_3hr),1) AS OutAqiPm2p5_3hr_max, f2.OutTAqiPm2p5_3hr_max, ag.OutAqiPm2p5_24hr_avg AS OutAqiPm2p5_24hr_avg, ROUND(MIN(g2.OutAqiPm2p5_24hr),1) AS OutAqiPm2p5_24hr_min, g2.OutTAqiPm2p5_24hr_min, ROUND(MAX(h2.OutAqiPm2p5_24hr),1) AS OutAqiPm2p5_24hr_max, h2.OutTAqiPm2p5_24hr_max, ag.OutAqiPm10_avg AS OutAqiPm10_avg, ROUND(MIN(i2.OutAqiPm10),1) AS OutAqiPm10_min, i2.OutTAqiPm10_min, ROUND(MAX(j2.OutAqiPm10),1) AS OutAqiPm10_max, j2.OutTAqiPm10_max, ag.OutAqiPm10_1hr_avg AS OutAqiPm10_1hr_avg, ROUND(MIN(k2.OutAqiPm10_1hr),1) AS OutAqiPm10_1hr_min, k2.OutTAqiPm10_1hr_min, ROUND(MAX(l2.OutAqiPm10_1hr),1) AS OutAqiPm10_1hr_max, l2.OutTAqiPm10_1hr_max, ag.OutAqiPm10_3hr_avg AS OutAqiPm10_3hr_avg, ROUND(MIN(m2.OutAqiPm10_3hr),1) AS OutAqiPm10_3hr_min, m2.OutTAqiPm10_3hr_min, ROUND(MAX(n2.OutAqiPm10_3hr),1) AS OutAqiPm10_3hr_max, n2.OutTAqiPm10_3hr_max, ag.OutAqiPm10_24hr_avg AS OutAqiPm10_24hr_avg, ROUND(MIN(o2.OutAqiPm10_24hr),1) AS OutAqiPm10_24hr_min, o2.OutTAqiPm10_24hr_min, ROUND(MAX(p2.OutAqiPm10_24hr),1) AS OutAqiPm10_24hr_max, p2.OutTAqiPm10_24hr_max FROM MonthlyAirQual INNER JOIN( -- average values SELECT MonthlyAirQual.LogDateTime AS LogDate, ROUND(AVG(MonthlyAirQual.OutPm1),1) AS OutPm1_avg, ROUND(AVG(MonthlyAirQual.OutPm2p5),1) AS OutPm2p5_avg, ROUND(AVG(MonthlyAirQual.OutPm2p5_1hr),1) AS OutPm2p5_1hr_avg, ROUND(AVG(MonthlyAirQual.OutPm2p5_3hr),1) AS OutPm2p5_3hr_avg, ROUND(AVG(MonthlyAirQual.OutPm2p5_24hr),1) AS OutPm2p5_24hr_avg, ROUND(AVG(MonthlyAirQual.OutPm10),1) AS OutPm10_avg, ROUND(AVG(MonthlyAirQual.OutPm10_1hr),1) AS OutPm10_1hr_avg, ROUND(AVG(MonthlyAirQual.OutPm10_3hr),1) AS OutPm10_3hr_avg, ROUND(AVG(MonthlyAirQual.OutPm10_24hr),1) AS OutPm10_24hr_avg, ROUND(AVG(MonthlyAirQual.OutAqiPm2p5),1) AS OutAqiPm2p5_avg, ROUND(AVG(MonthlyAirQual.OutAqiPm2p5_1hr),1) AS OutAqiPm2p5_1hr_avg, ROUND(AVG(MonthlyAirQual.OutAqiPm2p5_3hr),1) AS OutAqiPm2p5_3hr_avg, ROUND(AVG(MonthlyAirQual.OutAqiPm2p5_24hr),1) AS OutAqiPm2p5_24hr_avg, ROUND(AVG(MonthlyAirQual.OutAqiPm10),1) AS OutAqiPm10_avg, ROUND(AVG(MonthlyAirQual.OutAqiPm10_1hr),1) AS OutAqiPm10_1hr_avg, ROUND(AVG(MonthlyAirQual.OutAqiPm10_3hr),1) AS OutAqiPm10_3hr_avg, ROUND(AVG(MonthlyAirQual.OutAqiPm10_24hr),1) AS OutAqiPm10_24hr_avg FROM MonthlyAirQual WHERE DATE(MonthlyAirQual.LogDateTime) > @lastUpdated AND DATE(MonthlyAirQual.LogDateTime) < CURDATE() GROUP BY DAY(MonthlyAirQual.LogDateTime), MONTH(MonthlyAirQual.LogDateTime), YEAR(MonthlyAirQual.LogDateTime) ) ag ON DATE(MonthlyAirQual.LogDateTime) = DATE(ag.LogDate) -- a1: Pm1_minRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTPm1_min, OutPm1 FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY OutPm1 ASC, LogDateTime) rn FROM MonthlyAirQual WHERE DATE(MonthlyAirQual.LogDateTime) > @lastUpdated AND DATE(MonthlyAirQual.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) a1 ON (MonthlyAirQual.LogDateTime) = (a1.LogDate) -- b1: Pm1_maxRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTPm1_max, OutPm1 FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY OutPm1 DESC, LogDateTime) rn FROM MonthlyAirQual WHERE DATE(MonthlyAirQual.LogDateTime) > @lastUpdated AND DATE(MonthlyAirQual.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) b1 ON DATE(MonthlyAirQual.LogDateTime) = DATE(b1.LogDate) -- c1: Pm2p5_minRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTPm2p5_min, OutPm2p5 FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY OutPm2p5 ASC, LogDateTime) rn FROM MonthlyAirQual WHERE DATE(MonthlyAirQual.LogDateTime) > @lastUpdated AND DATE(MonthlyAirQual.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) c1 ON DATE(MonthlyAirQual.LogDateTime) = DATE(c1.LogDate) -- d1: Pm2p5_maxRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTPm2p5_max, OutPm2p5 FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY OutPm2p5 DESC, LogDateTime) rn FROM MonthlyAirQual WHERE DATE(MonthlyAirQual.LogDateTime) > @lastUpdated AND DATE(MonthlyAirQual.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) d1 ON DATE(MonthlyAirQual.LogDateTime) = DATE(d1.LogDate) -- e1: Pm2p5_1hr_minRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTpm2p5_1hr_min, OutPm2p5_1hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY OutPm2p5_1hr ASC, LogDateTime) rn FROM MonthlyAirQual WHERE DATE(MonthlyAirQual.LogDateTime) > @lastUpdated AND DATE(MonthlyAirQual.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) e1 ON DATE(MonthlyAirQual.LogDateTime) = DATE(e1.LogDate) -- f1: Pm2p5_1hr_maxRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTpm2p5_1hr_max, OutPm2p5_1hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY OutPm2p5_1hr DESC, LogDateTime) rn FROM MonthlyAirQual WHERE DATE(MonthlyAirQual.LogDateTime) > @lastUpdated AND DATE(MonthlyAirQual.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) f1 ON DATE(MonthlyAirQual.LogDateTime) = DATE(f1.LogDate) -- g1: Pm2p5_3hr_minRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTpm2p5_3hr_min, OutPm2p5_3hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY OutPm2p5_3hr ASC, LogDateTime) rn FROM MonthlyAirQual WHERE DATE(MonthlyAirQual.LogDateTime) > @lastUpdated AND DATE(MonthlyAirQual.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) g1 ON DATE(MonthlyAirQual.LogDateTime) = DATE(g1.LogDate) -- h1: Pm2p5_1hr_maxRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTpm2p5_3hr_max, OutPm2p5_3hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY OutPm2p5_3hr DESC, LogDateTime) rn FROM MonthlyAirQual WHERE DATE(MonthlyAirQual.LogDateTime) > @lastUpdated AND DATE(MonthlyAirQual.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) h1 ON DATE(MonthlyAirQual.LogDateTime) = DATE(h1.LogDate) -- i1: Pm2p5_24hr_minRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTpm2p5_24hr_min, OutPm2p5_24hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY OutPm2p5_24hr ASC, LogDateTime) rn FROM MonthlyAirQual WHERE DATE(MonthlyAirQual.LogDateTime) > @lastUpdated AND DATE(MonthlyAirQual.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) i1 ON DATE(MonthlyAirQual.LogDateTime) = DATE(i1.LogDate) -- j1: Pm2p5_24hr_maxRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTpm2p5_24hr_max, OutPm2p5_24hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY OutPm2p5_24hr DESC, LogDateTime) rn FROM MonthlyAirQual WHERE DATE(MonthlyAirQual.LogDateTime) > @lastUpdated AND DATE(MonthlyAirQual.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) j1 ON DATE(MonthlyAirQual.LogDateTime) = DATE(j1.LogDate) -- k1: Pm10_minRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTPm10_min, OutPm10 FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY OutPm10 ASC, LogDateTime) rn FROM MonthlyAirQual WHERE DATE(MonthlyAirQual.LogDateTime) > @lastUpdated AND DATE(MonthlyAirQual.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) k1 ON DATE(MonthlyAirQual.LogDateTime) = DATE(k1.LogDate) -- l1: Pm10_maxRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTPm10_max, OutPm10 FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY OutPm10 DESC, LogDateTime) rn FROM MonthlyAirQual WHERE DATE(MonthlyAirQual.LogDateTime) > @lastUpdated AND DATE(MonthlyAirQual.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) l1 ON DATE(MonthlyAirQual.LogDateTime) = DATE(l1.LogDate) -- m1: OutTpm10_1hr_minRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTpm10_1hr_min, OutPm10_1hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY OutPm10_1hr ASC, LogDateTime) rn FROM MonthlyAirQual WHERE DATE(MonthlyAirQual.LogDateTime) > @lastUpdated AND DATE(MonthlyAirQual.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) m1 ON DATE(MonthlyAirQual.LogDateTime) = DATE(m1.LogDate) -- n1: OutTpm10_1hr_maxRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTpm10_1hr_max, OutPm10_1hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY OutPm10_1hr DESC, LogDateTime) rn FROM MonthlyAirQual WHERE DATE(MonthlyAirQual.LogDateTime) > @lastUpdated AND DATE(MonthlyAirQual.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) n1 ON DATE(MonthlyAirQual.LogDateTime) = DATE(n1.LogDate) -- o1: OutTpm10_3hr_minRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTpm10_3hr_min, OutPm10_3hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY OutPm10_3hr ASC, LogDateTime) rn FROM MonthlyAirQual WHERE DATE(MonthlyAirQual.LogDateTime) > @lastUpdated AND DATE(MonthlyAirQual.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) o1 ON DATE(MonthlyAirQual.LogDateTime) = DATE(o1.LogDate) -- p1: OutTpm10_3hr_minRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTpm10_3hr_max, OutPm10_3hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY OutPm10_3hr DESC, LogDateTime) rn FROM MonthlyAirQual WHERE DATE(MonthlyAirQual.LogDateTime) > @lastUpdated AND DATE(MonthlyAirQual.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) p1 ON DATE(MonthlyAirQual.LogDateTime) = DATE(p1.LogDate) -- q1: OutTpm10_3hr_minRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTpm10_24hr_min, OutPm10_24hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY OutPm10_24hr ASC, LogDateTime) rn FROM MonthlyAirQual WHERE DATE(MonthlyAirQual.LogDateTime) > @lastUpdated AND DATE(MonthlyAirQual.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) q1 ON DATE(MonthlyAirQual.LogDateTime) = DATE(q1.LogDate) -- r1: OutTpm10_3hr_minRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTpm10_24hr_max, OutPm10_24hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY OutPm10_24hr DESC, LogDateTime) rn FROM MonthlyAirQual WHERE DATE(MonthlyAirQual.LogDateTime) > @lastUpdated AND DATE(MonthlyAirQual.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) r1 ON DATE(MonthlyAirQual.LogDateTime) = DATE(r1.LogDate) -- a2: AQIpm2p5_minRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTAqiPm2p5_min, OutAqiPm2p5 FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY OutAqiPm2p5 ASC, LogDateTime) rn FROM MonthlyAirQual WHERE DATE(MonthlyAirQual.LogDateTime) > @lastUpdated AND DATE(MonthlyAirQual.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) a2 ON DATE(MonthlyAirQual.LogDateTime) = DATE(a2.LogDate) -- b2: AQIm2p5_maxRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTAqiPm2p5_max, OutAqiPm2p5 FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY OutAqiPm2p5 DESC, LogDateTime) rn FROM MonthlyAirQual WHERE DATE(MonthlyAirQual.LogDateTime) > @lastUpdated AND DATE(MonthlyAirQual.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) b2 ON DATE(MonthlyAirQual.LogDateTime) = DATE(b2.LogDate) -- c2: AQIpm2p5_1hr_minRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTAqiPm2p5_1hr_min, OutAqiPm2p5_1hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY OutAqiPm2p5_1hr ASC, LogDateTime) rn FROM MonthlyAirQual WHERE DATE(MonthlyAirQual.LogDateTime) > @lastUpdated AND DATE(MonthlyAirQual.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) c2 ON DATE(MonthlyAirQual.LogDateTime) = DATE(c2.LogDate) -- d2: AQIpm2p5_1hr_maxRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTAqiPm2p5_1hr_max, OutAqiPm2p5_1hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY OutAqiPm2p5_1hr DESC, LogDateTime) rn FROM MonthlyAirQual WHERE DATE(MonthlyAirQual.LogDateTime) > @lastUpdated AND DATE(MonthlyAirQual.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) d2 ON DATE(MonthlyAirQual.LogDateTime) = DATE(d2.LogDate) -- e2: AQIpm2p5_3hr_minRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTAqiPm2p5_3hr_min, OutAqiPm2p5_3hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY OutAqiPm2p5_3hr ASC, LogDateTime) rn FROM MonthlyAirQual WHERE DATE(MonthlyAirQual.LogDateTime) > @lastUpdated AND DATE(MonthlyAirQual.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) e2 ON DATE(MonthlyAirQual.LogDateTime) = DATE(e2.LogDate) -- f2: AQIpm2p5_3hr_maxRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTAqiPm2p5_3hr_max, OutAqiPm2p5_3hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY OutAqiPm2p5_3hr DESC, LogDateTime) rn FROM MonthlyAirQual WHERE DATE(MonthlyAirQual.LogDateTime) > @lastUpdated AND DATE(MonthlyAirQual.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) f2 ON DATE(MonthlyAirQual.LogDateTime) = DATE(f2.LogDate) -- g2: AQIpm2p5_24hr_minRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTAqiPm2p5_24hr_min, OutAqiPm2p5_24hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY OutAqiPm2p5_24hr ASC, LogDateTime) rn FROM MonthlyAirQual WHERE DATE(MonthlyAirQual.LogDateTime) > @lastUpdated AND DATE(MonthlyAirQual.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) g2 ON DATE(MonthlyAirQual.LogDateTime) = DATE(g2.LogDate) -- h2: AQIpm2p5_24hr_maxRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTAqiPm2p5_24hr_max, OutAqiPm2p5_24hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY OutAqiPm2p5_24hr DESC, LogDateTime) rn FROM MonthlyAirQual WHERE DATE(MonthlyAirQual.LogDateTime) > @lastUpdated AND DATE(MonthlyAirQual.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) h2 ON DATE(MonthlyAirQual.LogDateTime) = DATE(h2.LogDate) -- i2: AQIpm10_minRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTAqiPm10_min, OutAqiPm10 FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY OutAqiPm10 ASC, LogDateTime) rn FROM MonthlyAirQual WHERE DATE(MonthlyAirQual.LogDateTime) > @lastUpdated AND DATE(MonthlyAirQual.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) i2 ON DATE(MonthlyAirQual.LogDateTime) = DATE(i2.LogDate) -- j2: AQIpm10_maxRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTAqiPm10_max, OutAqiPm10 FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY OutAqiPm10 DESC, LogDateTime) rn FROM MonthlyAirQual WHERE DATE(MonthlyAirQual.LogDateTime) > @lastUpdated AND DATE(MonthlyAirQual.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) j2 ON DATE(MonthlyAirQual.LogDateTime) = DATE(j2.LogDate) -- k2: AQIpm10_1hr_minRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTAqiPm10_1hr_min, OutAqiPm10_1hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY OutAqiPm10_1hr ASC, LogDateTime) rn FROM MonthlyAirQual WHERE DATE(MonthlyAirQual.LogDateTime) > @lastUpdated AND DATE(MonthlyAirQual.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) k2 ON DATE(MonthlyAirQual.LogDateTime) = DATE(k2.LogDate) -- l2: AQIpm10_1hr_maxRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTAqiPm10_1hr_max, OutAqiPm10_1hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY OutAqiPm10_1hr DESC, LogDateTime) rn FROM MonthlyAirQual WHERE DATE(MonthlyAirQual.LogDateTime) > @lastUpdated AND DATE(MonthlyAirQual.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) l2 ON DATE(MonthlyAirQual.LogDateTime) = DATE(l2.LogDate) -- m2: AQIpm10_3hr_minRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTAqiPm10_3hr_min, OutAqiPm10_3hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY OutAqiPm10_3hr ASC, LogDateTime) rn FROM MonthlyAirQual WHERE DATE(MonthlyAirQual.LogDateTime) > @lastUpdated AND DATE(MonthlyAirQual.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) m2 ON DATE(MonthlyAirQual.LogDateTime) = DATE(m2.LogDate) -- n2: AQIpm10_3hr_maxRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTAqiPm10_3hr_max, OutAqiPm10_3hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY OutAqiPm10_3hr DESC, LogDateTime) rn FROM MonthlyAirQual WHERE DATE(MonthlyAirQual.LogDateTime) > @lastUpdated AND DATE(MonthlyAirQual.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) n2 ON DATE(MonthlyAirQual.LogDateTime) = DATE(n2.LogDate) -- o2: AQIpm10_24hr_maxRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTAqiPm10_24hr_min, OutAqiPm10_24hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY OutAqiPm10_24hr ASC, LogDateTime) rn FROM MonthlyAirQual WHERE DATE(MonthlyAirQual.LogDateTime) > @lastUpdated AND DATE(MonthlyAirQual.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) o2 ON DATE(MonthlyAirQual.LogDateTime) = DATE(o2.LogDate) -- p2: AQIpm10_24hr_maxRT INNER JOIN( SELECT (LogDateTime) AS LogDate, TIME_FORMAT(LogDateTime,"%H:%i") AS OutTAqiPm10_24hr_max, OutAqiPm10_24hr FROM ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DATE(LogDateTime) ORDER BY OutAqiPm10_24hr DESC, LogDateTime) rn FROM MonthlyAirQual WHERE DATE(MonthlyAirQual.LogDateTime) > @lastUpdated AND DATE(MonthlyAirQual.LogDateTime) < CURDATE() ) t WHERE t.rn = 1 ) p2 ON DATE(MonthlyAirQual.LogDateTime) = DATE(p2.LogDate) GROUP BY DAY(MonthlyAirQual.LogDateTime), MONTH(MonthlyAirQual.LogDateTime), YEAR(MonthlyAirQual.LogDateTime) ); -- insert data from temporary tables INSERT IGNORE INTO DailyAirQual ( LogDate, OutPm1_avg, OutPm1_min, OutTPm1_min, OutPm1_max, OutTPm1_max, OutPm2p5_avg, OutPm2p5_min, OutTPm2p5_min, OutPm2p5_max, OutTPm2p5_max, OutPm2p5_1hr_avg, OutPm2p5_1hr_min, OutTpm2p5_1hr_min, OutPm2p5_1hr_max, OutTpm2p5_1hr_max, OutPm2p5_3hr_avg, OutPm2p5_3hr_min, OutTpm2p5_3hr_min, OutPm2p5_3hr_max, OutTpm2p5_3hr_max, OutPm2p5_24hr_avg, OutPm2p5_24hr_min, OutTpm2p5_24hr_min, OutPm2p5_24hr_max, OutTpm2p5_24hr_max, OutPm10_avg, OutPm10_min, OutTPm10_min, OutPm10_max, OutTPm10_max, OutPm10_1hr_avg, OutPm10_1hr_min, OutTpm10_1hr_min, OutPm10_1hr_max, OutTpm10_1hr_max, OutPm10_3hr_avg, OutPm10_3hr_min, OutTpm10_3hr_min, OutPm10_3hr_max, OutTpm10_3hr_max, OutPm10_24hr_avg, OutPm10_24hr_min, OutTpm10_24hr_min, OutPm10_24hr_max, OutTpm10_24hr_max, OutAqiPm2p5_avg, OutAqiPm2p5_min, OutTAqiPm2p5_min, OutAqiPm2p5_max, OutTAqiPm2p5_max, OutAqiPm2p5_1hr_avg, OutAqiPm2p5_1hr_min, OutTAqiPm2p5_1hr_min, OutAqiPm2p5_1hr_max, OutTAqiPm2p5_1hr_max, OutAqiPm2p5_3hr_avg, OutAqiPm2p5_3hr_min, OutTAqiPm2p5_3hr_min, OutAqiPm2p5_3hr_max, OutTAqiPm2p5_3hr_max, OutAqiPm2p5_24hr_avg, OutAqiPm2p5_24hr_min, OutTAqiPm2p5_24hr_min, OutAqiPm2p5_24hr_max, OutTAqiPm2p5_24hr_max, OutAqiPm10_avg, OutAqiPm10_min, OutTAqiPm10_min, OutAqiPm10_max, OutTAqiPm10_max, OutAqiPm10_1hr_avg, OutAqiPm10_1hr_min, OutTAqiPm10_1hr_min, OutAqiPm10_1hr_max, OutTAqiPm10_1hr_max, OutAqiPm10_3hr_avg, OutAqiPm10_3hr_min, OutTAqiPm10_3hr_min, OutAqiPm10_3hr_max, OutTAqiPm10_3hr_max, OutAqiPm10_24hr_avg, OutAqiPm10_24hr_min, OutTAqiPm10_24hr_min, OutAqiPm10_24hr_max, OutTAqiPm10_24hr_max ) -- use GREATEST and COALESCE to return the highest non null value SELECT DATE(monthlyData.LogDate) AS LogDate, ROUND(GREATEST(COALESCE(rtData.OutPm1_avgRT,0),monthlyData.OutPm1_avg),1) AS OutPm1_avg, ROUND(GREATEST(COALESCE(rtData.OutPm1_minRT,0),monthlyData.OutPm1_min),1) AS OutPm1_min, CASE WHEN GREATEST(COALESCE(rtData.OutPm1_minRT,0),monthlyData.OutPm1_min) = rtData.OutPm1_minRT THEN rtData.OutTPm1_minRT ELSE monthlyData.OutTPm1_min END AS OutTPm1_min, ROUND(GREATEST(COALESCE(rtData.OutPm1_maxRT,0),monthlyData.OutPm1_max),1) AS OutPm1_max, CASE WHEN GREATEST(COALESCE(rtData.OutPm1_maxRT,0),monthlyData.OutPm1_max) = rtData.OutPm1_maxRT THEN rtData.OutTPm1_maxRT ELSE monthlyData.OutTPm1_max END AS OutTPm1_max, ROUND(GREATEST(COALESCE(rtData.OutPm2p5_avgRT,0),monthlyData.OutPm2p5_avg),1) AS OutPm2p5_avg, ROUND(GREATEST(COALESCE(rtData.OutPm2p5_minRT,0),monthlyData.OutPm2p5_min),1) AS OutPm2p5_min, CASE WHEN GREATEST(COALESCE(rtData.OutPm2p5_minRT,0),monthlyData.OutPm2p5_min) = rtData.OutPm2p5_minRT THEN rtData.OutTPm2p5_minRT ELSE monthlyData.OutTPm2p5_min END AS OutTPm2p5_min, ROUND(GREATEST(COALESCE(rtData.OutPm2p5_maxRT,0),monthlyData.OutPm2p5_max),1) AS OutPm2p5_max, CASE WHEN GREATEST(COALESCE(rtData.OutPm2p5_maxRT,0),monthlyData.OutPm2p5_max) = rtData.OutPm2p5_maxRT THEN rtData.OutTPm2p5_maxRT ELSE monthlyData.OutTPm2p5_max END AS OutTPm2p5_min, ROUND(GREATEST(COALESCE(rtData.OutPm2p5_1hr_avgRT,0),monthlyData.OutPm2p5_1hr_avg),1) AS OutPm2p5_1hr_avg, ROUND(GREATEST(COALESCE(rtData.OutPm2p5_1hr_minRT,0),monthlyData.OutPm2p5_1hr_min),1) AS OutPm2p5_1hr_min, CASE WHEN GREATEST(COALESCE(rtData.OutPm2p5_1hr_minRT,0),monthlyData.OutPm2p5_1hr_min) = rtData.OutPm2p5_1hr_minRT THEN rtData.OutTPm2p5_1hr_minRT ELSE monthlyData.OutTPm2p5_1hr_min END AS OutTPm2p5_1hr_min, ROUND(GREATEST(COALESCE(rtData.OutPm2p5_1hr_maxRT,0),monthlyData.OutPm2p5_1hr_max),1) AS OutPm2p5_1hr_max, CASE WHEN GREATEST(COALESCE(rtData.OutPm2p5_1hr_maxRT,0),monthlyData.OutPm2p5_1hr_max) = rtData.OutPm2p5_1hr_maxRT THEN rtData.OutTPm2p5_1hr_maxRT ELSE monthlyData.OutTPm2p5_1hr_max END AS OutTPm2p5_1hr_max, ROUND(GREATEST(COALESCE(rtData.OutPm2p5_3hr_avgRT,0),monthlyData.OutPm2p5_3hr_avg),1) AS OutPm2p5_3hr_avg, ROUND(GREATEST(COALESCE(rtData.OutPm2p5_3hr_minRT,0),monthlyData.OutPm2p5_3hr_min),1) AS OutPm2p5_3hr_min, CASE WHEN GREATEST(COALESCE(rtData.OutPm2p5_3hr_minRT,0),monthlyData.OutPm2p5_3hr_min) = rtData.OutPm2p5_3hr_minRT THEN rtData.OutTPm2p5_3hr_minRT ELSE monthlyData.OutTPm2p5_3hr_min END AS OutTPm2p5_3hr_min, ROUND(GREATEST(COALESCE(rtData.OutPm2p5_3hr_maxRT,0),monthlyData.OutPm2p5_3hr_max),1) AS OutPm2p5_3hr_max, CASE WHEN GREATEST(COALESCE(rtData.OutPm2p5_3hr_maxRT,0),monthlyData.OutPm2p5_3hr_max) = rtData.OutPm2p5_3hr_maxRT THEN rtData.OutTPm2p5_3hr_maxRT ELSE monthlyData.OutTPm2p5_3hr_max END AS OutTPm2p5_3hr_max, ROUND(GREATEST(COALESCE(rtData.OutPm2p5_24hr_avgRT,0),monthlyData.OutPm2p5_24hr_avg),1) AS OutPm2p5_24hr_avg, ROUND(GREATEST(COALESCE(rtData.OutPm2p5_24hr_minRT,0),monthlyData.OutPm2p5_24hr_min),1) AS OutPm2p5_24hr_min, CASE WHEN GREATEST(COALESCE(rtData.OutPm2p5_24hr_minRT,0),monthlyData.OutPm2p5_24hr_min) = rtData.OutPm2p5_24hr_minRT THEN rtData.OutTPm2p5_24hr_minRT ELSE monthlyData.OutTPm2p5_24hr_min END AS OutTPm2p5_24hr_min, ROUND(GREATEST(COALESCE(rtData.OutPm2p5_24hr_maxRT,0),monthlyData.OutPm2p5_24hr_max),1) AS OutPm2p5_24hr_max, CASE WHEN GREATEST(COALESCE(rtData.OutPm2p5_24hr_maxRT,0),monthlyData.OutPm2p5_24hr_max) = rtData.OutPm2p5_24hr_maxRT THEN rtData.OutTPm2p5_24hr_maxRT ELSE monthlyData.OutTPm2p5_24hr_max END AS OutTPm2p5_24hr_max, ROUND(GREATEST(COALESCE(rtData.OutPm10_avgRT,0),monthlyData.OutPm10_avg),1) AS OutPm10_avg, ROUND(GREATEST(COALESCE(rtData.OutPm10_minRT,0),monthlyData.OutPm10_min),1) AS OutPm10_min, CASE WHEN GREATEST(COALESCE(rtData.OutPm10_minRT,0),monthlyData.OutPm10_min) = rtData.OutPm10_minRT THEN rtData.OutTPm10_minRT ELSE monthlyData.OutTPm10_min END AS OutTPm10_min, ROUND(GREATEST(COALESCE(rtData.OutPm10_maxRT,0),monthlyData.OutPm10_max),1) AS OutPm10_max, CASE WHEN GREATEST(COALESCE(rtData.OutPm10_maxRT,0),monthlyData.OutPm10_max) = rtData.OutPm10_maxRT THEN rtData.OutTPm10_maxRT ELSE monthlyData.OutTPm10_max END AS OutTPm10_max, ROUND(GREATEST(COALESCE(rtData.OutPm10_1hr_avgRT,0),monthlyData.OutPm10_1hr_avg),1) AS OutPm10_1hr_avg, ROUND(GREATEST(COALESCE(rtData.OutPm10_1hr_minRT,0),monthlyData.OutPm10_1hr_min),1) AS OutPm10_1hr_min, CASE WHEN GREATEST(COALESCE(rtData.OutPm10_1hr_minRT,0),monthlyData.OutPm10_1hr_min) = rtData.OutPm10_1hr_minRT THEN rtData.OutTPm10_1hr_minRT ELSE monthlyData.OutTPm10_1hr_min END AS OutTPm10_1hr_min, ROUND(GREATEST(COALESCE(rtData.OutPm10_1hr_maxRT,0),monthlyData.OutPm10_1hr_max),1) AS OutPm10_1hr_max, CASE WHEN GREATEST(COALESCE(rtData.OutPm10_1hr_maxRT,0),monthlyData.OutPm10_1hr_max) = rtData.OutPm10_1hr_maxRT THEN rtData.OutTPm10_1hr_maxRT ELSE monthlyData.OutTPm10_1hr_max END AS OutTPm10_1hr_max, ROUND(GREATEST(COALESCE(rtData.OutPm10_3hr_avgRT,0),monthlyData.OutPm10_3hr_avg),1) AS OutPm10_3hr_avg, ROUND(GREATEST(COALESCE(rtData.OutPm10_3hr_minRT,0),monthlyData.OutPm10_3hr_min),1) AS OutPm10_3hr_min, CASE WHEN GREATEST(COALESCE(rtData.OutPm10_3hr_minRT,0),monthlyData.OutPm10_3hr_min) = rtData.OutPm10_3hr_minRT THEN rtData.OutTPm10_3hr_minRT ELSE monthlyData.OutTPm10_3hr_min END AS OutTPm10_3hr_min, ROUND(GREATEST(COALESCE(rtData.OutPm10_3hr_maxRT,0),monthlyData.OutPm10_3hr_max),1) AS OutPm10_3hr_max, CASE WHEN GREATEST(COALESCE(rtData.OutPm10_3hr_maxRT,0),monthlyData.OutPm10_3hr_max) = rtData.OutPm10_3hr_maxRT THEN rtData.OutTPm10_3hr_maxRT ELSE monthlyData.OutTPm10_3hr_max END AS OutTPm10_3hr_max, ROUND(GREATEST(COALESCE(rtData.OutPm10_24hr_avgRT,0),monthlyData.OutPm10_24hr_avg),1) AS OutPm10_24hr_avg, ROUND(GREATEST(COALESCE(rtData.OutPm10_24hr_minRT,0),monthlyData.OutPm10_24hr_min),1) AS OutPm10_24hr_min, CASE WHEN GREATEST(COALESCE(rtData.OutPm10_24hr_minRT,0),monthlyData.OutPm10_24hr_min) = rtData.OutPm10_24hr_minRT THEN rtData.OutTPm10_24hr_minRT ELSE monthlyData.OutTPm10_24hr_min END AS OutTPm10_24hr_min, ROUND(GREATEST(COALESCE(rtData.OutPm10_24hr_maxRT,0),monthlyData.OutPm10_24hr_max),1) AS OutPm10_24hr_max, CASE WHEN GREATEST(COALESCE(rtData.OutPm10_24hr_maxRT,0),monthlyData.OutPm10_24hr_max) = rtData.OutPm10_24hr_maxRT THEN rtData.OutTPm10_24hr_maxRT ELSE monthlyData.OutTPm10_24hr_max END AS OutTPm10_24hr_max, ROUND(GREATEST(COALESCE(rtData.OutAqiPm2p5_avgRT,0),monthlyData.OutAqiPm2p5_avg),1) AS OutAqiPm2p5_avg, ROUND(GREATEST(COALESCE(rtData.OutAqiPm2p5_minRT,0),monthlyData.OutAqiPm2p5_min),1) AS OutAqiPm2p5_min, CASE WHEN GREATEST(COALESCE(rtData.OutAqiPm2p5_minRT,0),monthlyData.OutAqiPm2p5_min) = rtData.OutAqiPm2p5_minRT THEN rtData.OutTAqiPm2p5_minRT ELSE monthlyData.OutTAqiPm2p5_min END AS OutTAqiPm2p5_min, ROUND(GREATEST(COALESCE(rtData.OutAqiPm2p5_maxRT,0),monthlyData.OutAqiPm2p5_max),1) AS OutAqiPm2p5_max, CASE WHEN GREATEST(COALESCE(rtData.OutAqiPm2p5_maxRT,0),monthlyData.OutAqiPm2p5_max) = rtData.OutAqiPm2p5_maxRT THEN rtData.OutTAqiPm2p5_maxRT ELSE monthlyData.OutTAqiPm2p5_max END AS OutTAqiPm2p5_max, ROUND(GREATEST(COALESCE(rtData.OutAqiPm2p5_1hr_avgRT,0),monthlyData.OutAqiPm2p5_1hr_avg),1) AS OutAqiPm2p5_1hr_avg, ROUND(GREATEST(COALESCE(rtData.OutAqiPm2p5_1hr_minRT,0),monthlyData.OutAqiPm2p5_1hr_min),1) AS OutAqiPm2p5_1hr_min, CASE WHEN GREATEST(COALESCE(rtData.OutAqiPm2p5_1hr_minRT,0),monthlyData.OutAqiPm2p5_1hr_min) = rtData.OutAqiPm2p5_1hr_minRT THEN rtData.OuttAqiPm2p5_1hr_minRT ELSE monthlyData.OuttAqiPm2p5_1hr_min END AS OuttAqiPm2p5_1hr_min, ROUND(GREATEST(COALESCE(rtData.OutAqiPm2p5_1hr_maxRT,0),monthlyData.OutAqiPm2p5_1hr_max),1) AS OutAqiPm2p5_1hr_max, CASE WHEN GREATEST(COALESCE(rtData.OutAqiPm2p5_1hr_maxRT,0),monthlyData.OutAqiPm2p5_1hr_max) = rtData.OutAqiPm2p5_1hr_maxRT THEN rtData.OuttAqiPm2p5_1hr_maxRT ELSE monthlyData.OuttAqiPm2p5_1hr_max END AS OuttAqiPm2p5_1hr_max, ROUND(GREATEST(COALESCE(rtData.OutAqiPm2p5_3hr_avgRT,0),monthlyData.OutAqiPm2p5_3hr_avg),1) AS OutAqiPm2p5_3hr_avg, ROUND(GREATEST(COALESCE(rtData.OutAqiPm2p5_3hr_minRT,0),monthlyData.OutAqiPm2p5_3hr_min),1) AS OutAqiPm2p5_3hr_min, CASE WHEN GREATEST(COALESCE(rtData.OutAqiPm2p5_3hr_minRT,0),monthlyData.OutAqiPm2p5_3hr_min) = rtData.OutAqiPm2p5_3hr_minRT THEN rtData.OuttAqiPm2p5_3hr_minRT ELSE monthlyData.OuttAqiPm2p5_3hr_min END AS OuttAqiPm2p5_3hr_min, ROUND(GREATEST(COALESCE(rtData.OutAqiPm2p5_3hr_maxRT,0),monthlyData.OutAqiPm2p5_3hr_max),1) AS OutAqiPm2p5_3hr_max, CASE WHEN GREATEST(COALESCE(rtData.OutAqiPm2p5_3hr_maxRT,0),monthlyData.OutAqiPm2p5_3hr_max) = rtData.OutAqiPm2p5_3hr_maxRT THEN rtData.OuttAqiPm2p5_3hr_maxRT ELSE monthlyData.OuttAqiPm2p5_3hr_max END AS OuttAqiPm2p5_3hr_max, ROUND(GREATEST(COALESCE(rtData.OutAqiPm2p5_24hr_avgRT,0),monthlyData.OutAqiPm2p5_24hr_avg),1) AS OutAqiPm2p5_24hr_avg, ROUND(GREATEST(COALESCE(rtData.OutAqiPm2p5_24hr_minRT,0),monthlyData.OutAqiPm2p5_24hr_min),1) AS OutAqiPm2p5_24hr_min, CASE WHEN GREATEST(COALESCE(rtData.OutAqiPm2p5_24hr_minRT,0),monthlyData.OutAqiPm2p5_24hr_min) = rtData.OutAqiPm2p5_24hr_minRT THEN rtData.OuttAqiPm2p5_24hr_minRT ELSE monthlyData.OuttAqiPm2p5_24hr_min END AS OuttAqiPm2p5_24hr_min, ROUND(GREATEST(COALESCE(rtData.OutAqiPm2p5_24hr_maxRT,0),monthlyData.OutAqiPm2p5_24hr_max),1) AS OutAqiPm2p5_24hr_max, CASE WHEN GREATEST(COALESCE(rtData.OutAqiPm2p5_24hr_maxRT,0),monthlyData.OutAqiPm2p5_24hr_max) = rtData.OutAqiPm2p5_24hr_maxRT THEN rtData.OuttAqiPm2p5_24hr_maxRT ELSE monthlyData.OuttAqiPm2p5_24hr_max END AS OuttAqiPm2p5_24hr_max, ROUND(GREATEST(COALESCE(rtData.OutAqiPm10_avgRT,0),monthlyData.OutAqiPm10_avg),1) AS OutAqiPm10_avg, ROUND(GREATEST(COALESCE(rtData.OutAqiPm10_minRT,0),monthlyData.OutAqiPm10_min),1) AS OutAqiPm10_min, CASE WHEN GREATEST(COALESCE(rtData.OutAqiPm10_minRT,0),monthlyData.OutAqiPm10_min) = rtData.OutAqiPm10_minRT THEN rtData.OutTAqiPm10_minRT ELSE monthlyData.OutTAqiPm10_min END AS OutTAqiPm10_min, ROUND(GREATEST(COALESCE(rtData.OutAqiPm10_maxRT,0),monthlyData.OutAqiPm10_max),1) AS OutAqiPm10_max, CASE WHEN GREATEST(COALESCE(rtData.OutAqiPm10_maxRT,0),monthlyData.OutAqiPm10_max) = rtData.OutAqiPm10_maxRT THEN rtData.OutTAqiPm10_maxRT ELSE monthlyData.OutTAqiPm10_max END AS OutTAqiPm10_max, ROUND(GREATEST(COALESCE(rtData.OutAqiPm10_1hr_avgRT,0),monthlyData.OutAqiPm10_1hr_avg),1) AS OutAqiPm10_1hr_avg, ROUND(GREATEST(COALESCE(rtData.OutAqiPm10_1hr_minRT,0),monthlyData.OutAqiPm10_1hr_min),1) AS OutAqiPm10_1hr_min, CASE WHEN GREATEST(COALESCE(rtData.OutAqiPm10_1hr_minRT,0),monthlyData.OutAqiPm10_1hr_min) = rtData.OutAqiPm10_1hr_minRT THEN rtData.OuttAqiPm10_1hr_minRT ELSE monthlyData.OuttAqiPm10_1hr_min END AS OuttAqiPm10_1hr_min, ROUND(GREATEST(COALESCE(rtData.OutAqiPm10_1hr_maxRT,0),monthlyData.OutAqiPm10_1hr_max),1) AS OutAqiPm10_1hr_max, CASE WHEN GREATEST(COALESCE(rtData.OutAqiPm10_1hr_maxRT,0),monthlyData.OutAqiPm10_1hr_max) = rtData.OutAqiPm10_1hr_maxRT THEN rtData.OuttAqiPm10_1hr_maxRT ELSE monthlyData.OuttAqiPm10_1hr_max END AS OuttAqiPm10_1hr_max, ROUND(GREATEST(COALESCE(rtData.OutAqiPm10_3hr_avgRT,0),monthlyData.OutAqiPm10_3hr_avg),1) AS OutAqiPm10_3hr_avg, ROUND(GREATEST(COALESCE(rtData.OutAqiPm10_3hr_minRT,0),monthlyData.OutAqiPm10_3hr_min),1) AS OutAqiPm10_3hr_min, CASE WHEN GREATEST(COALESCE(rtData.OutAqiPm10_3hr_minRT,0),monthlyData.OutAqiPm10_3hr_min) = rtData.OutAqiPm10_3hr_minRT THEN rtData.OuttAqiPm10_3hr_minRT ELSE monthlyData.OuttAqiPm10_3hr_min END AS OuttAqiPm10_3hr_min, ROUND(GREATEST(COALESCE(rtData.OutAqiPm10_3hr_maxRT,0),monthlyData.OutAqiPm10_3hr_max),1) AS OutAqiPm10_3hr_max, CASE WHEN GREATEST(COALESCE(rtData.OutAqiPm10_3hr_maxRT,0),monthlyData.OutAqiPm10_3hr_max) = rtData.OutAqiPm10_3hr_maxRT THEN rtData.OuttAqiPm10_3hr_maxRT ELSE monthlyData.OuttAqiPm10_3hr_max END AS OuttAqiPm10_3hr_max, ROUND(GREATEST(COALESCE(rtData.OutAqiPm10_24hr_avgRT,0),monthlyData.OutAqiPm10_24hr_avg),1) AS OutAqiPm10_24hr_avg, ROUND(GREATEST(COALESCE(rtData.OutAqiPm10_24hr_minRT,0),monthlyData.OutAqiPm10_24hr_min),1) AS OutAqiPm10_24hr_min, CASE WHEN GREATEST(COALESCE(rtData.OutAqiPm10_24hr_minRT,0),monthlyData.OutAqiPm10_24hr_min) = rtData.OutAqiPm10_24hr_minRT THEN rtData.OuttAqiPm10_24hr_minRT ELSE monthlyData.OuttAqiPm10_24hr_min END AS OuttAqiPm10_24hr_min, ROUND(GREATEST(COALESCE(rtData.OutAqiPm10_24hr_maxRT,0),monthlyData.OutAqiPm10_24hr_max),1) AS OutAqiPm10_24hr_max, CASE WHEN GREATEST(COALESCE(rtData.OutAqiPm10_24hr_maxRT,0),monthlyData.OutAqiPm10_24hr_max) = rtData.OutAqiPm10_24hr_maxRT THEN rtData.OuttAqiPm10_24hr_maxRT ELSE monthlyData.OuttAqiPm10_24hr_max END AS OuttAqiPm10_24hr_max FROM rtData -- join the monthly data to the realtime data RIGHT JOIN monthlyData ON DAY(rtData.LogDateRT) = DAY(monthlyData.LogDate) AND MONTH(rtData.LogDateRT) = MONTH(monthlyData.LogDate) AND YEAR(rtData.LogDateRT) = YEAR(monthlyData.LogDate) GROUP BY DAY(monthlyData.LogDate), MONTH(monthlyData.LogDate), YEAR(monthlyData.LogDate); COMMIT; END$$ DELIMITER ; |
A PHP script contains SQL queries that retrieve the necessary information from this table and are assigns to variables when the web page is visited. This allows for these statistics to be shown on the web page and is the same principle as several other statistics on these and other pages. The SQL queries are fairly simple because the daily air quality data already shows all the required summarised information for each day.