mysql join same table different result set - mysql

Question

I would like to combine different results from the same table as one big result.
SELECT host_name,stats_avgcpu,stats_avgmem,stats_avgswap,stats_avgiowait
FROM sar_stats,sar_hosts,sar_appgroups,sar_environments
WHERE stats_host = host_id
AND host_environment = env_id
AND env_name = 'Staging 2'
AND host_appgroup = group_id
AND group_name = 'Pervasive'
AND DATE(stats_report_time) = DATE_SUB(curdate(), INTERVAL 1 DAY)
SELECT AVG(stats_avgcpu),AVG(stats_avgmem),AVG(stats_avgswap),AVG(stats_avgiowait)
FROM sar_stats
WHERE stats_id = "stat_id of the first query" and DATE(stats_report_time)
BETWEEN DATE_SUB(curdate(), INTERVAL 8 DAY) and DATE_SUB(curdate(), INTERVAL 1 DAY)
SELECT AVG(stats_avgcpu),AVG(stats_avgmem),AVG(stats_avgswap),AVG(stats_avgiowait)
FROM sar_stats
WHERE stats_id = "stat_id of the first query" and DATE(stats_report_time)
BETWEEN DATE_SUB(curdate(), INTERVAL 31 DAY) and DATE_SUB(curdate(), INTERVAL 1 DAY)
Desired output would be something like ...
host_name|stats_avgcpu|stats_avgmem|stats_avgswap|stats_avgiowait|7daycpuavg|7daymemavg|7dayswapavg|7dayiowaitavg|30daycpuavg|30daymemavg|....etc
SQL Fiddle
http://sqlfiddle.com/#!8/4930b/3

Answer 1

It seems like this is what you want. I updated the first query to use proper ANSI JOIN syntax and then for the additional two queries they were joined via a LEFT JOIN on the stats_host field:
SELECT s.stats_host,
h.host_name,
s.stats_avgcpu,
s.stats_avgmem,
s.stats_avgswap,
s.stats_avgiowait,
s7.7dayavgcpu,
s7.7dayavgmem,
s7.7dayavgswap,
s7.7dayavgiowait,
s30.30dayavgcpu,
s30.30dayavgmem,
s30.30dayavgswap,
s30.30dayavgiowait
FROM sar_stats s
INNER JOIN sar_hosts h
on s.stats_host = h.host_id
INNER JOIN sar_appgroups a
on h.host_appgroup = a.group_id
and a.group_name = 'Pervasive'
INNER JOIN sar_environments e
on h.host_environment = e.env_id
and e.env_name = 'Staging 2'
LEFT JOIN
(
SELECT s.stats_host,
AVG(s.stats_avgcpu) AS '7dayavgcpu',
AVG(s.stats_avgmem) AS '7dayavgmem',
AVG(s.stats_avgswap) AS '7dayavgswap',
AVG(s.stats_avgiowait) AS '7dayavgiowait'
FROM sar_stats s
WHERE DATE(stats_report_time) BETWEEN DATE_SUB(curdate(), INTERVAL 8 DAY) AND DATE_SUB(curdate(), INTERVAL 1 DAY)
GROUP BY s.stats_host
) s7
on s.stats_host = s7.stats_host
LEFT JOIN
(
SELECT s.stats_host,
AVG(s.stats_avgcpu) AS '30dayavgcpu',
AVG(s.stats_avgmem) AS '30dayavgmem',
AVG(s.stats_avgswap) AS '30dayavgswap',
AVG(s.stats_avgiowait) AS '30dayavgiowait'
FROM sar_stats s
WHERE DATE(s.stats_report_time) BETWEEN DATE_SUB(curdate(), INTERVAL 31 DAY) AND DATE_SUB(curdate(), INTERVAL 1 DAY)
GROUP BY s.stats_host
) s30
on s.stats_host = s30.stats_host
WHERE DATE(s.stats_report_time) = DATE_SUB(curdate(), INTERVAL 1 DAY);
see SQL Fiddle with Demo