| 摘要 |
A system and method for creating a global data dictionary from a plurality of databases such that users may conduct expansive searches or queries, and retrieve data therefrom, regardless of the database management system from each respective database. The global data dictionary is created by semantically and syntactically integrating data elements from the plurality of databases. The plurality of data elements are stored in a dictionary system, wherein each of the data elements corresponds to at least one data element in the plurality of databases. Relationships are identified between two or more of the data elements in the dictionary system. In order to retrieve data, upon receiving from a user a request for data in the form of a query data element, the system identifies the data elements in the dictionary system that corresponds to the query data element and retrieves the data corresponding to the query data element from the databases.
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