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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
$result=mysql_query( "SELECT a.hr, SUM(case when b.pulse_channel = 1 then b.unit_qty else 0 end) as name1, SUM(case when b.pulse_channel = 2 then b.unit_qty else 0 end) as name2, SUM(case when b.pulse_channel = 3 then b.unit_qty else 0 end) as name3, SUM(case when b.pulse_channel = 4 then b.unit_qty else 0 end) as name4, SUM(b.unit_qty) as Total from ( select 0 as hr union select 1 union select 2 union select 3 union select 4 union select 5 union select 6 union select 7 union select 8 union select 9 union select 10 union select 11 union select 12 union select 13 union select 14 union select 15 union select 16 union select 17 union select 18 union select 19 union select 20 union select 21 union select 22 union select 23) a left join count_transactions b on a.hr = Hour(b.tran_date) WHERE DATE(b.tran_date) BETWEEN '$dateb' AND '$dateb' AND unit_serial=$netw GROUP BY a.hr" ) or die("SELECT Error: ".mysql_error());
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