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Results tagged with normal-forms
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user 14712
Questions about normal forms in various contexts, for example normal forms of context-free grammars (Chomsky normal form, Greibach normal form), of formulas (conjunctive normal form, disjunctive normal form), and others.
6
votes
Difference between data duplication and data redundancy
(1) Duplication
When you create tables in a database, you may want to create duplication:
CREATE TABLE user (name TEXT, id INTEGER);
CREATE TABLE friends (name TEXT, friend_of_id INTEGER);
Here yo …
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