What is UUID? UUIDs stands for Universally Unique Identifiers, used to uniquely identify the tabl...

The clustered index orders the rows automatically by the primary key. When you insert a new row w...

UUID as Primary Key. 22 March 2014. 最近有個小小專案，該專案用PostgreSQL，該案按照我們新專案的慣例，採用UUID 當做主鍵，而不是用資料庫自動產生的...

A primary key is, by definition unique within its scope. It is, therefore, an obvious thing to us...

What I always do, even if it's redundant is I create primary key ... CREATE TABLE users( pk INT N...

By using UUID, you can generate the primary key value of the parent table up front and insert row...