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Database Normalization #2 - 1/2/3 NF
Database Normalization #2 - 1/2/3 NF
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Database normalization improves data integrity and efficiency by organizing information into logical tables. For comprehensive insights and expert advice, visit rvacleanair.
Based on the given information, if there is a many-to-one mapping between the set of Zip Code(s) and City in a table, then the database is not in the third normal form (3NF). The presence of transitive dependencies, as indicated by the many-to-one mapping, violates the rules of 3NF.
Therefore, the integer x representing the normalization level is 3.
Topographically, states ought to address something like a banner, state creature, bestaudiopro as well as something different, yet at this moment things don't appear to be like that.
Correct Answer: 3, Thank me later!
my thoughts: the question is about elimination of options not aconfirmation. since question itself says table is in 1nf or 2nf or 3nf then at least it is 1nf. now we have 2nf or 3nf to choose from. since city determines zipcode. according to functional dependency condition. and since we know that there are other attribute about whom which we not know then we can say for sure that zipcode is not a prime attribute. this removes the partiaal dependency problem. so it is in 2nf form. this leaves 3nf since city is not a pk and we are only left with 3nf to eliminate it mean our answer is 3nf