Once the different kinds of data are identified, attention is given to the representation of data through an examination of three critical models: XML, SQL, and objects.
Once the different kinds of data are identified, attention is given to the representation of data through an examination of three critical models: XML, SQL, and objects.
不同种类的数据确定后，就开始关注数据表示，通过检验三种关键的模型来进行：XML,SQL,对象。