2016-06-10 49 views
0

我有一個下表結構:檢索對應和非對應的值從多對多表

品牌=>瀏覽歷史< =用戶

史表包含下列:

brandId,用戶id,積分(每個品牌有多少積分用戶積分)。我需要將他在歷史表中的兩個日期之間得分的用戶的所有積分相加。

查詢將接受4個參數:用戶id,brandId,的startDate,結束日期...下面的輸出會是這樣的:

userId  brandId  points 

1    64   155 sum of all points in between two dates specified by the parameter. 

如果BrandId的傳遞值= NULL(即不通過)。如果查詢在BrandId和UserId的歷史記錄表中找不到任何數據,則查詢應返回有關品牌和用戶的全部數據...我在Zend Framework 2中編寫了自己的查詢,但它不輸出我想要的(只返回了在歷史記錄表竟發現記錄)...

它看起來像這樣:

public function BrandWallBrandsById($userId,$brandId,$startDate,$endDate) 
{ 
    $select = new Select(); 
    $select->from(array('p' => $this->table), array('id')); 
    $select->join(array('b' => 'brands'), 'p.brandId = b.id', array('id','name', 'cover', 'slogan', 'startDate', 'homepage','endDate','active')); 
    $select->columns(array(new Expression('SUM(p.points) as points'), "userId", "brandId")); 
    $select->order("p.points asc"); 
    $select->group("p.brandId"); 
    $where = new Where(); 
    $where->notEqualTo("p.points", 0); 
    $where->notEqualTo("p.type",10); 
    $where->equalTo("p.userId", $userId); 
    $where->equalTo("p.brandId", $brandId); 
    $where->equalTo("b.active",1); 
    $where->between("p.time", $startDate, $endDate); 
    $select->where($where); 
    return $this->historyTable->selectWith($select)->toArray()[0]; 
} 

注意查詢僅在當其被稱爲時間返回單個記錄。我想寫一個純粹的SQL語句,因爲我認爲它可能比這更容易... 有人可以幫我嗎?

回答

0

下面是一個SQL語句,可以讓你在SQL Server中獲得所需的東西,儘管我不熟悉zend-framework。

declare @startDate datetime, @endDate datetime, @userId int = null, @brandId int = null 
set @startDate = '6/1/2016' 
set @endDate = '6/9/2016' 
set @userId = 1  --this can be NULL 
set @brandId = 64 --this can be NULL 

select 
    userId, 
    brandId, 
    sum(points) as points 
from 
    historyTable 
where 
    (@userId is null or userId = @userId) 
    and (@brandId is null or brandId = @brandId) 
    and dateColumn >= @startDate 
    and dateColumn < dateadd(day,1,@endDate) 
group by 
    userId, brandId