database normalization

基本解釋

Volumes can and have been written about the important topic of database normalization.
數(shù)據(jù)庫標(biāo)準(zhǔn)化是一個(gè)重要課題，完全可以就其寫出許多著作，而且已經(jīng)有了許多相關(guān)著作。
Classic database normalization would say to create a Pizza table, and then a many-to-many table relating pizza IDs to topping IDs.
典型的數(shù)據(jù)庫標(biāo)準(zhǔn)會(huì)建議需要先創(chuàng)建一張比薩表，然后再創(chuàng)建一張將比薩 ID 與澆頭 ID 關(guān)聯(lián)起來的多對(duì)多表。
To demonstrate, let's apply a little database normalization to the previous example, splitting the owner field of PhoneNumber into a separate person table.
作為演示，我們將一個(gè)小的數(shù)據(jù)庫規(guī)范化（normalization）應(yīng)用于上一示例，將 PhoneNumber 的 owner 字段分割到單獨(dú)的 person 表中。