This instance will be initialized with a data provider , connection string , data table and data access method to access the data source 使用用于访问数据源的数据提供程序、连接字符串、数据表和数据访问方法来初始化该实例。
Class has to implement basic constructor methods , which may be used to specify the properties , such as the database , directory , or data access method 类必须实现基本的构造函数方法,构造函数方法可以用来指定属性,例如数据库、目录或者数据访问方法。
For example , using data access methods that require the splist class will greatly benefit from indexing columns used in a where clause 本白皮书中通过恰当地测试,测试结果证实了环境中这样的事实:你很可能可以在容器中使用超过2000条项目,并且避免性能上的不利影响。
Of all the data access methods provided by the . net framework , using sql server for data access is the recommended choice for building high - performance , scalable web applications 在. net framework提供的所有数据访问方法中,使用sql server进行数据访问是生成高性能、可缩放web应用程序的推荐选择。
The third part is of vital importance in query tuning , because it provides us with a great deal of useful information , such as the data access method and the join method that the query used 第三部分对于查询调优是至关重要的,因为它提供了大量有用的信息,例如查询所用的数据访问方法和连接方法。
The best results will be obtained if you write your own user interface to work with the data in the list , and make some carefully considered choices about what data access method works best for your requirements 使用你自己编写的处理列表数据接口并仔细考虑选择何种数据方法以适应你的需求一遍工作得最好,这样就可以获得最佳结果。
In this paper , we propose an original data access method , the anr - tree , which supports predictive queries . we focus on real life environments , where the objects move within constrained networks , such as vehicles on roads 针对这些移动对象的查询可以分为两类:查询移动对象的历史位置和查询移动对象将来可预期的位置即可预测查询,本文主要关注第二类查询。