troubleshooting Question

morning daily and night calculation

Avatar of asaidi
asaidi asked on
MySQL Server
4 Comments1 Solution272 ViewsLast Modified:
Hi
please have a look to my query
$result=mysql_query( "SELECT a.hr, 
      SUM(case when b.pulse_channel = 1 then b.unit_qty else 0 end) as name1,
      SUM(case when b.pulse_channel = 2 then b.unit_qty else 0 end) as name2,
      SUM(case when b.pulse_channel = 3 then b.unit_qty else 0 end) as name3,
      SUM(case when b.pulse_channel = 4 then b.unit_qty else 0 end) as name4,
      SUM(b.unit_qty) as Total
from (
	select 0  as hr 
	union select 1
	union select 2 
	union select 3
	union select 4 
	union select 5 
	union select 6
	union select 7
	union select 8
	union select 9
	union select 10
	union select 11
	union select 12
	union select 13
	union select 14
	union select 15
	union select 16
	union select 17
	union select 18
	union select 19
	union select 20
	union select 21
	union select 22
	union select 23) a 
left join count_transactions b on a.hr = Hour(b.tran_date)
WHERE DATE(b.tran_date) BETWEEN '$dateb' AND '$dateb' AND unit_serial=$netw
GROUP BY a.hr" ) or die("SELECT Error: ".mysql_error());
how i can calculate unit_qty for morning (from 0 to 6) then daily from 7pm to 19:59 then night from 20 to 23:59pm
i hope you inderstand my query
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