一种基于构造字符串的数据存取方法

为了实现数据库系统开发过程中复杂数据的存取,文中提出了基于构造字符串的数据存取方法。以多个参数名和参数值构造一个实体的多个属性称为组。以组名和组值构造多个实体的属性称为组集合,把组集合作为一个字符串存储在数据库中。数据的访问是根据组名和参数名来反向提取组值和参数值。建立了数据存取对象模型,用实例说明了该对象的使用方法。实例表明该方法能够提高数据库设计的灵活性,增强应用程序和数据库的独立性,快速、方便地实现数据的存储和访问。

A Method for Data Store and Access Based on Structural String

For implementing the store and access of complicated data in development of database system,a method for data store and access based on structural string is put forward.The group presents several properties of an entity by several names and values of parameters.The collection of groups presents the properties of several entities by several names and values of groups,and it is stored in database as a string.The data access is implemented by obtaining the values according to the names of the parameter and the group.The object model of data store and access is established in this paper,and an example is given to explain the method for using the object.The example indicates that the method strengthens the flexibility of database design and the independence between database and application,implementing data store and access rapidly and conveniently.