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    SIGMOD
    2007
    ACM
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    Nulls, three-valued logic, and ambiguity in SQL: critiquing date's critique
    14 years 5 months ago
    Nulls, three-valued logic, and ambiguity in SQL: critiquing date's critique
    Download  www.u.arizona.edu
    Date's popular critique of SQL's three-valued logic [4, 3] purports to demonstrate that SQL queries can produce erroneous results when nulls are present in the database....
    Claude Rubinson
    claim paper
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