Nhibernate数据查询简单使用

1. 返回所有的会员:

string query = "from Member";

IList member = session.CreateQuery(query).List();
2. 返回以b开头的会员:

string query = "from Member m where m.name like b%";

IList members= session.CreateQuery(query).List();

3. 返回所有的会员ID和名称:

string query = "select m.MemberId, m.Name from Member m";

IList members = session.CreateQuery(query).List();

注意：此处的MemberId, Name均为Member对象的属性.

返回的并不是members对象的集合，而是一个一维数组的集合，

其中array[0]为MemberId, array[1]为Name

4. 返回会员的总数：(用此方法时,session 和transcation都不能关闭和提交,否则IEnumerrator将取不到数据)

string query = "select count(*) from Member";

IEnumerator e = Session.CreateQuery(query).Enumerable().GetEnumerator();

e.MoveNext;

int rowCount = (int)(e.Current);

5. 返回指定(从20-40)的会员

string query = "from Member";

IList Members = session.CreateQuery(query)

.SetFirstResult(20).SetMaxResults(20).List()

Nhiberante执行sql语句

Using Nhibernate.Engine;

string sql = "update s_companyconfig set isvalid={0} where numconpanyid={1} and numModelId={2}";

sql = string.Format(sql, numVlaid, numcompanyid, numModel);

NHibernate.Cfg.Configuration cfg = new NHibernate.Cfg.Configuration();

ISessionFactoryImplementor factory = (ISessionFactoryImplementor)cfg.BuildSessionFactory();

System.Data.IDbCommand cmd = new System.Data.SqlClient.SqlCommand();

cmd.CommandText = sql;

System.Data.IDbConnection conn = factory.OpenConnection();

cmd.Connection = conn;

conn.Open();

cmd.ExecuteNonQuery();

conn.Close();