System and method for query processing that requires access to the cooperative distributed database

摘要

A method and system for coordinating customer access to a distributed database system, such as a financial services system database pool containing various sources of different types of data, receives as input a user query, such as a query related to the status of financial transactions. The query is processed to determine the types of data required to satisfy the query and the target data sources containing such data. Discrete sub-queries are formulated and issued to the identified target data sources. The retrieved data is combined to generate a response to the query which is formatted and returned to the requestor, preferably in the form of an Internet web page.