Invention Grant
US07647280B1 Closed-loop estimation of request costs 有权
请求成本的闭环估计

Closed-loop estimation of request costs
Abstract:
Request processing is optimized. The request has elements. The method, computer program and database system includes selecting an access path for the request taking into consideration a stored actual request element cost, processing the request using the selected access path, producing one or more actual request element costs, and storing the one or more actual request element costs.
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