I am trying to run a SQL statement that includes three tables.
incomes
-id
-title
-amount
-company_id
companies
-id
-name
-sector_id
sectors
-id
-name
as you can see 'incomes' table is not directly related with 'sectors' table. What I am trying to do is to get total of income by IndustrySectors.
I had managed to calculate two tables so far but knowledge is limited for three. Please kindly guide me.
this is for two tables.Income By Company
$x=0;
foreach($companies as $Company){
$companyName= $Company['Company']['name'];
$companyId= $Company['Company']['id'];
$query= $this->Income->query("
SELECT SUM( amount ) AS IncomeTotal
FROM incomes
WHERE company_id=$companyId
");
$total=$query[0][0]['IncomeTotal'];
if($total!=null){
//$incomeByCompany[$companyName]=$total;
//$incomeByCompany['total']=$total;
$incomeByCompany[$x]['companyId']=$companyId;
$incomeByCompany[$x]['name']=$companyName;
$incomeByCompany[$x]['total']=$total;
}
$x++;
}