Hibernate Union All編程

public List<Integer> findUnionCount() {
		// TODO Auto-generated method stub
		/*select count(*)  from i_email where 1=1 and
				birthday between '1991-01-01 00:00:00'
				and '1992-12-31 23:59:59'
				union all
				select count(*)  from i_email where 1=1 and
				birthday between '1980-01-01 00:00:00'
				and '2013-12-31 23:59:59'*/
		StringBuffer buffer = new StringBuffer("");
		buffer.append("Select count(*) from i_email");
		buffer.append(" where 1=1");
		buffer.append(" and birthday between '1991-01-01 00:00:00' and '1992-12-31 23:59:59'");
		buffer.append(" union all");
		buffer.append(" Select count(*) from i_email");
		buffer.append(" where 1=1");
		buffer.append(" and birthday between '1980-01-01 00:00:00' and '2013-12-31 23:59:59'");
		//queryObject(buffer.toString(), null);
		Session session = this.getHibernateTemplate().getSessionFactory().openSession();
		SQLQuery  sQLQuery  = session.createSQLQuery(buffer.toString());
		List<Object> list = sQLQuery.list();
		for(int i=0;i<list.size();i++){
			
			System.out.println((BigInteger)list.get(i));
		}
		return null;
	}

這裏的Union All 只是一個彙總字段

Console

如果是多個字體就用

for(int i=0;i<list.size();i++){
Object[] o = (Object[]) list.get(i);
System.out.println("City Id: " + o[0] + " || Count: " + o[1]);
}