Database fine-grained access control
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United States of America Patent
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Oct 9, 2007
Grant Date -
Feb 17, 2005
app pub date -
Sep 15, 2004
filing date -
Oct 5, 1998
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Abstract
A method and mechanism are provided for accessing data. Values are stored for a set of context attributes associated with a session between a database user and a database server. The database system includes an attribute setting mechanism that selectively restricts access to the set of context attributes based on a policy. During the session, the database server executes a query that contains a reference to one or more of the context attributes. For example, the query may contain a predicate that requires a comparison between a context attribute value and a constant. The database server processes the query based on current values of the one or more of the context attributes referenced in the query. A mechanism is also provided for dynamically attaching predicates to queries, where the predicates are attached based on a policy. For example, the database system detects that a query is issued against a database object. Prior to executing the query, a policy function associated with the database object is invoked. The policy function creates a modified query by selectively adding zero or more predicates to the query based on a policy associated with the database object. The modified query is then executed.
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- 15 United States
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Patent Owner(s)
- ORACLE INTERNATIONAL CORPORATION
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Lei, Chon Hei | San Leandro, CA | 26 | 1100 |
McMahon, Douglas James | Redwood City, CA | 16 | 855 |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
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