目前有2个非常基本的类,其中一个嵌套在另一个类中。
班级工作:
public Class Job {
private String name;
private int salary;
... // Basic Constructors + Getters/Setters
}
班级公司:
public Class Company {
private String name;
private Collection<Job> jobs;
... // Basic Constructors + Getters/Setters
}
您可能已经猜到了,尝试进行一个查询,该查询将返回每个包含其作业集合的公司列表。
查询:
select COMPANY_NAME, JOB_NAME, count(*) FROM COMPANY_REPORT cr, JOB_DECLARATIONS jd
where cr.COMPANY_NAME = jd.COMPANY_NAME
group by cr.COMPANY_NAME , cr.JOB_NAME
order by cr.COMPANY_NAME , cr.JOB_NAME
会返回这样的内容:
Company Name | Job Name | Count
--------------------------------
Soni Assistant 3
Soni Manager 1
Zoom Potographer 5
但我似乎无法理解它的HQL语法。
Select new com.stuff.Company(cr.COMPANY_NAME, ...how to add collection??) FROM ...
答案 0 :(得分:0)
Select c.name, j.name, count(*) from company c, job j where c.name=:name group by c.name, c.jobs
Order by c.name,c.jobs
找到setparameterList here