Question

如何使用nhibernate选择5个随机记录。

我的sql看起来像这样：

SELECT TOP 5 u.UserId, u.UserName, p.ImageFileName FROM users as u, profiles as p WHERE u.UserId = p.UserId ORDER BY NEWID()

我尝试过这样做，但它不起作用

IList<User> users = session
                        .CreateCriteria(typeof(User))
                        .CreateCriteria("Profile")
                        .Add<Profile>(p => p.ImageFileName != string.Empty)
                        .AddOrder(Order.Asc("NEWID()"))
                        .SetMaxResults(5)
                        .List<User>();

Answer 1

您可以使用SQLQuery：

var query = 
    "SELECT TOP 5 u.UserId, u.UserName, p.ImageFileName " +
    "FROM users as u, profiles as p " +
    "WHERE u.UserId = p.UserId ORDER BY NEWID()";

ISQLQuery qry = session.CreateSQLQuery(query).AddEntity(typeof(User));
List<User> rndUsers = qry.List<User>();

如何使用nhibernate获取随机行？

1 个答案: