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US5995972A System and method for retrieving data 失效
用于检索数据的系统和方法

System and method for retrieving data
摘要:
A computing system according to the present invention includes data having a primary access location in the system and having a secondary access location in the system. The system also includes a computer running an application, where the application requests for the data having the primary and secondary access locations. In response to the application requesting the data, middleware on the computer determines whether the requested data is at the primary access location. If the data is at the primary access location, the middleware retrieves the requested data from the primary access location and sends the requested data to the application. In response to the data not being found at the primary access location, the middleware retrieves the data from the secondary access location. The middleware then sends the requested data to the application and stores a copy of the requested data at the primary access location. The middleware is implemented as software.
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