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NHibernate 快速入门（四）使用 HQL 查询数据

2011-08-26 11:36  麦舒  阅读(624)  评论(0)  编辑  收藏  举报

1、from 子句

var db = new NorthwindDataContext();
var categories = db.Session.CreateQuery("from Category")
                           .List<Category>();
foreach (var category in categories)
{
    Console.WriteLine(category.CategoryName);
}

 

2、select 子句

var db = new NorthwindDataContext();
var categories = db.Session.CreateQuery("from Category as c select c.CategoryID, c.CategoryName")
                            .List<Category>();
foreach (var category in categories)
{
    Console.WriteLine(category.CategoryName);
}

 

3、where 子句

var db = new NorthwindDataContext();
var categories = db.Session.CreateQuery(@"from Category as c 
                                          where c.CategoryID > 1
                                          select c.CategoryID, c.CategoryName")
                            .List<Category>();
foreach (var category in categories)
{
    Console.WriteLine(category.CategoryName);
}