Is Hell Forever?
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Logic and Relational Theory
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Fifty Years of Relational, and Other Database Writings
$29.62
Stating the Obvious, and Other Database Writings : Still More Thoughts and Essays on Database Matters
$29.62
E. F. Codd and Relational Theory, Revised Edition
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Keys, Foreign Keys, and Relational Theory
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Database Technology: Nulls Considered Harmful
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Domains and Types in Relational Theory and SQL: Shedding Some Light on a Widely Misunderstood Concept
$35.64