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A multi database consists of a collection of autonomous local databases. Systems used to manage multi databases are called multi database systems (MDBSs). In such a system global transactions are executed under the control of the MDBS. Independently local transactions are submitted directly to a local Database system (LDBS) by local applications. An Multi Database System should provide a mechanism to globally manage transactions. However global transactions are long- live and involve operation on multiple and autonomous local databases. Moreover MDBSs do not have any information about the existence and execution order of local transactions. The aim of this research is to propose a design that integrates three Heterogeneous multi databases with the same model relational but different software environments by doing the following: 1- Accepts a query, determine the appropriate set of information sources to answer the query. 2- Obtain results from the information so appropriate translation, filtering and merging of the information and return the final answer to the user or application (client). 3- The server computer can manipulate transaction (Delete, update, search) while the client computer each of them can process (delete, update and search).
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Book Description CreateSpace Independent Publishing Platform, 2012. Condition: Very Good. Great condition for a used book! Minimal wear. Seller Inventory # GRP101721609