DISTINCT結果從數據庫使用sql查詢

Question

我在Zend Framework 2中工作。 如何從此查詢獲取工作標題的唯一值？

$jobselect = $jobstable->select() 
         ->setIntegrityCheck(false) 
         ->from($jobsname, array("$jobsname.title as jobtitle", "$jobsname.company as company", "$storagename.storage_path as companylogo", "$jobsname.location as location")) 
         ->join($storagename, "$storagename.parent_id = $jobsname.job_id")  
         ->where("$storagename.parent_type = ?", "job") 
         ->where("$storagename.type = ?", "thumb.icon") 
         ->where("$jobsname.user_id = ?", 244); 

Answer 1

->where("$jobsname.user_id = ?", 244) 
-group("jobtitle");