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METHODS, SYSTEMS AND DEVICES FOR PERFORMING INCREM

2021-01-13 来源:好走旅游网
专利内容由知识产权出版社提供

专利名称:METHODS, SYSTEMS AND DEVICES FOR

PERFORMING INCREMENTAL UPDATES OFPARTIAL DATABASES

发明人:Bjørn-Harald SJØGREN申请号:US12500370申请日:20090709

公开号:US20110010344A1公开日:20110113

专利附图:

摘要:Methods, systems and devices for performing incremental updates of a partialdatabase stored on a client device from a computer system containing the database of

which the partial database is a subset. A first database record which has been insertedinto, deleted from or changed in the server database as a result of a database operationis identified in order to perform a corresponding operation on the client device. Inaddition, a second record that has not been inserted, deleted or changed, but that isrelated to the first record through a constraint, is identified. The second record isinserted into or deleted from the partial database through a database operation

performed on the client device such that the constraint is fulfilled in the partial database.Identification of records is based on database logs and on the structured relationshipbetween record types.

申请人:Bjørn-Harald SJØGREN

地址:Ski NO

国籍:NO

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