Hibernate 用于查找不同值的计数的休眠条件
我有下面的sql查询,我需要得到相应的hibernate查询条件Hibernate 用于查找不同值的计数的休眠条件,hibernate,Hibernate,我有下面的sql查询,我需要得到相应的hibernate查询条件 SELECT COUNT(DISTINCT employee_id) FROM erp_hr_payment WHERE payment_id IN( SELECT payment_id FROM erp_hr_payment_collection WHERE payment_id IN( SELECT payment_id FROM erp_hr_payment_collection WHERE payment_id IN( S
SELECT COUNT(DISTINCT employee_id) FROM erp_hr_payment WHERE payment_id IN(
SELECT payment_id FROM erp_hr_payment_collection WHERE payment_id IN(
SELECT payment_id FROM erp_hr_payment_collection WHERE payment_id IN(
SELECT payment_id FROM erp_hr_payment
WHERE for_month BETWEEN '2013-04-01' AND '2014-03-31' AND arrear_flag=0
) AND element_name='EPF' ) AND element_name='EPFV');
从大多数内部查询开始创建相对的
DetachedCriteria
,并使用子查询.in()附加到外部查询
对于count(distinct)
使用Projections.countDistinct(propertyName)
。
享受。
- 创建分离的条件。每个内部查询一个李>
- 在主标准的“in”子句中添加分离的标准
- 使用countDistinct投影获取员工的不同计数
DetachedCriteria erp_hr_paymentDetachedCriteria = DetachedCriteria.forClass(Erp_hr_payment.class,"erp_hr_payment");
erp_hr_paymentDetachedCriteria.setProjection(Property.forName("payment_id"));
Criteria erp_hr_paymentMainCriteria = session.createCriteria(erp_hr_payment.class, "pogHeader");
erp_hr_paymentMainCriteria.setProjection(Projections.projectionList().add(Projections.alias(Projections.countDistinct("erp_hr_payment.employee_id"), "distinctEmployeeCount")));
erp_hr_paymentMainCriteria.add(Property.forName("erp_hr_payment.payment_id").in(erp_hr_paymentDetachedCriteria));
erp_hr_paymentDetachedCriteria.list(); //Will give you your result
有趣的查询…我无法使用您的代码段,因为DetachedCriteria没有提供方法list()
-另请参见