SCALABLE ACCESS TO DATA IN AN ARBITRARILY LARGE DOCUMENT

摘要

Techniques for accessing data that resides in a document on a computer- readable medium by a device with device resources of limited resource amount include determining usage for each portion of the document that consumes the device resources of a plurality of portions of the document. Each portion ma y be accessed independently of a different portion of the document. Based on t he usage, a particular portion of the document is selected to cease consuming t he device resources. The device resources consumed by the particular portion ar e released. The techniques allow a document-processing device with limited resources to scale up to process a large document that would otherwise excee d the available resources. This capability is an advantage when first insertin g a large XML document, which cannot be fully manifested in available memory, as multiple loadable units into a database or other persistent store.