用標準nvl將SQL轉換爲HQL

Question

(nvl(SELECT sum(wbs.days * 8 + wbs.hours) 
FROM com.vtradex.er.server.model.er.ProjectWbs wbs 
WHERE wbs.project.id=erp.id 
AND wbs.user.id= 248),0) 

Answer 1

創建存儲過程將執行此查詢並通過@Formula註釋將其映射到某個屬性會更容易。