PostgreSQL Primary Key 추가하는 방법
PostgreSQL 은 사용하는 방법이 좀 특이해서 이렇게 Blogging을 합니다. https://www.techonthenet.com/postgresql/primary_keys.php PostgreSQL: Primary Keys PostgreSQL: Primary Keys This PostgreSQL tutorial explains how to create, drop, disable, and enable a primary key in PostgreSQL with syntax and examples. What is a primary key in PostgreSQL? In PostgreSQL, a primary key is a single field or combination of www.techonth..