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Privacy What Developers and IT Professionals Should Know by J. C. Cannon

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Query Limitation

Query limitation places restrictions on the types of queries that can be run by a user. When choosing restrictions, you will want to maximize security while minimizing loss in utility.[8] What this means is that a set of restrictions should be used that will minimize the risk of exposure of sensitive data while still permitting the queries against a set of data to be useful. Determining the right restrictions to make can be difficult. Your decision should be based on the total number of records you have stored, the uniqueness of the data, and the number of sensitive columns. These techniques make the assumption that the tables under which the queries are being performed do not contain any user identifiable information from the ...

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