SqlHelper是一个基于.NET Framework的数据库操作组件。组件中包含数据库操作方法，目前SqlHelper有很多版本，主要以微软一开始发布的SqlHelper类，后面包含进了Enterprise Library开源包中了。

SqlHelper 类用于通过一组静态方法来封装数据访问功能。该类不能被继承或实例化，因此将其声明为包含专用构造函数的不可继承类。在 SqlHelper 类中实现的每种方法都提供了一组一致的重载。这提供了一种很好的使用 SqlHelper 类来执行命令的模式，同时为开发人员选择访问数据的方式提供了必要的灵活性。每种方法的重载都支持不同的方法参数，因此开发人员可以确定传递连接、事务和参数信息的方式。-SqlHelper is based on. NET Framework database operations components. Components included in the database operations, the current SqlHelper There are many versions, Microsoft released SqlHelper class, followed included the open-source package of the Enterprise Library.

SqlHelper class is used to encapsulate data access capabilities through a set of static methods. It can not be inherited or instantiated, will therefore be declared as containing special constructor is not inherited class. In each SqlHelper class provides a consistent set of overloaded. This provides a good SqlHelper class to execute the command mode, and provides the necessary flexibility for developers to choose the way of access to data. Of each method overloads to support different parameters, so the developer can determine the way of passing connection, transaction, and parameter information.