----https://reinvestment.tistory.com/66 세팅설명https://devblog.lazyig.com/36/ : 권한설명----npm init -y npm i sequelize pg sequelize-cli postgres 패키지 설치 후 sequelize init { "development": { "username": "jihoon", "password": "jihoon", "database": "instagram", "host": "127.0.0.1", "dialect": "postgres" }, "test": { "username": "root", "password": null, "database": "database_test..