Database Normalization #4 – HackerRank Solution

In this post, we will solve Database Normalization #4 HackerRank Solution. This problem (Database Normalization #4) is a part of HackerRank Databases series.


A database, normalized as per 2NF rules, has been split into 10 tables. Each of the tables has exactly two columns: one key attribute and one non-key attribute. What is the minimum number of tables required to express this database in 3NF form? Enter the integer in the text box below. Do not leave any leading or trailing spaces.

Solution – Database Normalization #4 – HackerRank Solution


Note: This problem (Database Normalization #4) is generated by HackerRank but the solution is provided by CodingBroz. This tutorial is only for Educational and Learning purpose.

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