使用NHibernate CreateSQLQuery,需指定类型
有时候Query太复杂时,使用NHibernate的Query会组到疯掉,又不想用System.Data.SqlClient时,就可以用用NHibernate的SQLQuery,它可以直接输入普通的Query,不过在输出的资料型态上,需要指定成NHibernate的类型,不然会吐出错误讯息:
NHibernate.QueryException : Return types of SQL query were not specified
举例如下:
NHibernate.QueryException : Return types of SQL query were not specified
举例如下:
1 ZhuJi.Modules.CountModule.Domain.CountHour domainCountHour = new ZhuJi.Modules.CountModule.Domain.CountHour();
2 hql = string.Format("Select Top 1 * From CountHour as tmp Where tmp.Ip Like '{0}' And DATEDIFF(d,tmp.Addtime,'{1}')=0", ip, addTime);
3 ISQLQuery sqlQuery = session.CreateSQLQuery(hql);
4 sqlQuery.AddScalar("Id", NHibernateUtil.Int32);
5 sqlQuery.AddScalar("Ip", NHibernateUtil.String);
6 sqlQuery.AddScalar("Pvs", NHibernateUtil.Int32);
7 sqlQuery.AddScalar("Ips", NHibernateUtil.Int32);
8 sqlQuery.AddScalar("Cookies", NHibernateUtil.Int32);
9 sqlQuery.AddScalar("AddTime", NHibernateUtil.DateTime);
10 IList<ZhuJi.Modules.CountModule.Domain.CountHour> listCountHour = sqlQuery.List<ZhuJi.Modules.CountModule.Domain.CountHour>();
2 hql = string.Format("Select Top 1 * From CountHour as tmp Where tmp.Ip Like '{0}' And DATEDIFF(d,tmp.Addtime,'{1}')=0", ip, addTime);
3 ISQLQuery sqlQuery = session.CreateSQLQuery(hql);
4 sqlQuery.AddScalar("Id", NHibernateUtil.Int32);
5 sqlQuery.AddScalar("Ip", NHibernateUtil.String);
6 sqlQuery.AddScalar("Pvs", NHibernateUtil.Int32);
7 sqlQuery.AddScalar("Ips", NHibernateUtil.Int32);
8 sqlQuery.AddScalar("Cookies", NHibernateUtil.Int32);
9 sqlQuery.AddScalar("AddTime", NHibernateUtil.DateTime);
10 IList<ZhuJi.Modules.CountModule.Domain.CountHour> listCountHour = sqlQuery.List<ZhuJi.Modules.CountModule.Domain.CountHour>();