如何将此查询转换为 Zend DB 查询
SELECT t1.date, t1.station, t1.ftype, t1.price, t1.currency
FROM fueling as t1
INNER JOIN
(SELECT MAX(t2.date) as maxdate, t2.station, t2.ftype
FROM fueling as t2
GROUP BY t2.station, t2.ftype) as t3
ON t1.date=t3.maxdate AND t1.station=t3.station AND t1.ftype=t3.ftype
where t1.station in ('GF112','GF11')
ORDER by t1.station,t1.ftype;
最佳答案
尝试下面的一个
$subselect = $this->db->select()
->from(array('t2' => 'fueling'),
array(
'maxdate' => 'MAX(t2.date)',
'station' => 't2.station',
'ftype' => 't2.ftype',
));
$select = $this->db->select()
->from(array('t1' => 'fueling'),
array(
'date' => 't1.date',
'station' => 't1.station',
'ftype' => 't1.ftype',
'price'=>'t1.price',
'currency'=>'t1.currency'
))
->JOIN(array('t3'=>$subselect),'t1.date=t3.maxdate and t1.station=t3.station and t1.ftype=t3.ftype')
->Where('t1.station IN (?)', array('GF112','GF11')');
$results = $this->db->query($select)->fetchAll();
关于php - 将 SQL 查询转换为 Zend DB Select,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/28962345/