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[マンガで理解]正規化は「引っ越しの断捨離」だ ─ 1NF・2NF・3NFを3 ...

会議でエンジニアがそう言った瞬間、あなたは何食わぬ顔でうなずいた。内心は「？？？」だったけど。 正規化。データベースの話になると必ず出てくる。1NF、2NF、3NF...。数字が増えるほどエラそうだけど、違いがわからない。 大丈夫。この記事を読み ...
GitHub

Summary of normalization and acid properties in DBMS.

BCNF In DBMS, often known as 3.5NF, is a higher level of normalisation than the third normal form (3NF). It is based on functional dependencies between attributes in a relation. It should already ...
GitHub

Database normalization practice using SQL(1nf-3nf)

Description: Normalize the database to Second Normal Form (2NF). Second Normal Form (2NF) removes partial dependencies; this means that all non-key attributes are fully functionally dependent on the ...