Network Business Platform Of Query Processing And Implementation

Modern communication and network technology development makes thee-commerce has developed vigorously. In this case, in order to facilitate the networkshopping, realize the B2B and B2C and trade on the net, the need for network on thevarious heterogeneous data effective integration, the convenience of our customers toextract the will of commodity information. Now, the data on the network are moststructured and semi-structured is formed existences, so, you should find a kind ofeffective these data integration and query method. This is the root cause of appearXML language, the language to the integration of heterogeneous data sources andinquires a unified provide data platform.In this thesis, based on XML to the heterogeneous data integration scheme,introduces the scheme are given function structure, function and the realization of allkey technologies, and emphatically to XML public modeling method were discussed,and based on this, make full use of XML data superiority in description, design ofdata query based on XML mode, the mode of heterogeneous database query for allrelevant information described.Based on B/S in three layers framework based on the model, this paper carriesout the main problems and solve for:Establish public data model. Make full use of XML data description, thesuperiority of design based on XML mode of public model, the public data modelbased on XML to heterogeneous database with all of the information available forinquires are described, and using the public model, can for the user or networkprovide a transparent global database;Local data inquires of heterogeneous data sources. To join in to a network of themall for businesses, if its database data does not want to be user queries to, canprovide Shared by the method of field template to to the customer inquires limit onthe range, so that customers use the query operation, is provided in each businesswithin the inquires commodity information query process, can for businesses and theirbusiness data security and confidentiality provide good protection;To the SQL related parameters accurate extraction. From the XML document toextract relevant SQL statement of faith and and realize the joint data query the wayinquires research and implementation, to different formats of the query structure bycomparing the format of the unified data to show.