php - retrieving from multiple tables is taking too long time -


hi retrieving multiple tables , displaying result taking long time.

following database code :

"select count(distinct kgbupdate.gsxno) sat kgbupdate      right join contactcenter on kgbupdate.ackno=contactcenter.ackno     left join customerfeed on contactcenter.callid = customerfeed.callid     date(contactcenter.callclose) between '".$start."' , '".$end."'     , kgbupdate.gsxno!=''     , contactcenter.callstatus = 'close'     , customerfeed.overall in ( 1, 2 )      , contactcenter.location='".$location[$i]."' "

what way speed using index

thanks in advance.

try this:

select count(distinct kgbupdate.gsxno) sat kgbupdate      right join contactcenter on kgbupdate.ackno=contactcenter.ackno , contactcenter.callstatus = 'close' , contactcenter.location='".$location[$i]."' "     left join customerfeed on contactcenter.callid = customerfeed.callid , customerfeed.overall in ( 1, 2 )      date(contactcenter.callclose) between '".$start."' , '".$end."'     , kgbupdate.gsxno!=''

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