Abstract
The most important feature of a multidatabase system (MDBS) is to provide the global schema with integrating various models of local database systems (LDBS). However, it is difficult to integrate local schemas into the global schema due to the difference of the syntactical and semantic expressions of LDBSs. In this paper, we propose the standard SQL extension for MDBS called by Multidatabase Query Language (MQL). In addition, we analyze semantic conflicts using case studies and provide solutions to the semantic conflicts using MQL.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.