Processing Image Type Field in Database Based on Three-Tier Architecture
Deng Zhaojun · Journal of Yibin University · 2006
In this article,taking processing image type field in the website as an example,the characteristics and develop- mental procedure of three-tier architecture are illustrated.During the process of image type field in the database,first of all,the service tier(also named as data tier)is used to establish table(s)and to program storage procedure.Then,sever- al kinds of operations,including image addition,image achievement and the completion of class programming design,are processed using the operation logical tier(also named as functional tier).The last step is to complete the user interface tier (also named as performing tier);utilize the image addition function to upload images and achieve image function to display images.The application of three-tier architecture is able to combine the advantages of people with different professions and organically integrate database design,programming design and interface design together to form a system entity,so it is able to make system design more convenience.