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Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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04-04-2013 дата публикации

Query Transformation for Masking Data Within Database Objects

Номер: US20130086088A1

According to one embodiment of the present invention, a system processes a database query, and comprises a computer system including at least one processor. The system identifies one or more expressions within the database query utilizing a database object with value masking. Masking requirements are determined for each identified expression and the database object utilized by that identified expression is replicated to provide masked and actual versions of that database object in response to the masking requirements for that expression including masked values and actual values of that database object. The value masking of the database object is applied to the identified expressions within the database query based on the determined masking requirements to produce search results with masked values for the database query. Embodiments of the present invention further include a method and computer program product for processing a database query in substantially the same manner described above. 1. A computer-implemented method of processing a database query comprising:identifying one or more expressions within the database query utilizing a database object to which value masking is applied;determining masking requirements for each identified expression and replicating the database object utilized by that identified expression to provide masked and actual versions of that database object in response to the masking requirements for that expression including masked values and actual values of that database object; andapplying the value masking of the database object to the identified expressions within the database query based on the determined masking requirements to produce search results with masked values for the database query.2. The computer-implemented method of claim 1 , wherein the database object includes a column of a table.3. The computer-implemented method of claim 1 , wherein applying the value masking includes:utilizing the masked version of the database ...

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06-01-2015 дата публикации

Query transformation for masking data within database objects

Номер: US8930410B2
Принадлежит: International Business Machines Corp

According to one embodiment of the present invention, a system processes a database query, and comprises a computer system including at least one processor. The system identifies one or more expressions within the database query utilizing a database object with value masking. Masking requirements are determined for each identified expression and the database object utilized by that identified expression is replicated to provide masked and actual versions of that database object in response to the masking requirements for that expression including masked values and actual values of that database object. The value masking of the database object is applied to the identified expressions within the database query based on the determined masking requirements to produce search results with masked values for the database query. Embodiments of the present invention further include a method and computer program product for processing a database query in substantially the same manner described above.

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