1. PK, FK, ER모델이란?
-Primary Key: 테이블에서 각 Row를 유일하게 구분하는 Column-Key.
-Foreign Key: 하나의 테이블에 있는 Column으로는 그 의미를 표현할 수 없는 경우, 다른 테이블의 Primary-Key Column의 값을 반드시 참조하여 표현해야 하는 Column.
-Field: Table에서 Row와 Column이 교차하는 데이터.
2. 참조 무결성이
reflective modernization)의 개념이 동시에 제기된다. 이는 진보의 역설을 직시하고 인류의 문명을 좀 더 지속 가능한 기반 위에 세우고자 하는 자기 반성적 성찰이라 할 수 있다(Beck. 1997). 우리는 현재 이러한 위험사회의 성찰적 과정을 밟고 있다고 할 수 있다.
홍수, 가뭄, 태풍과 같은 자연적 재해가 주요
Framework
This study consists of total 4 chapters and the main contents of each chapter goes as follows:
Chapter one is introduction, suggesting background of study which shows problems of Hite beer.
Chapter two includes situation analysis of beer market and each company.
Chapter three includes analysis of consumer behavior and satisfaction about Hite beer and Cass beer.
Chapter f
Introduction
Person's character, behavior, and personality are individuals, each. but Curiously, each of the actions of other people also have a common denominator. Eventually it has a similar desire to form a similar attitude. Based on these facts, with interest from the position of consumers and businesses in the market in Present or the near future, the collective actions of consumers, in oth
Ⅲ. Subjects for Study
Conducting questionnaire was notified in advance about. And We explain the contents, Associated with personality characteristics and emotions were measured. Instructions of the same information that was stated on the questionnaire.
All the questionnaires for this study were prepared at a lecture room after class hours. Notice was given to students that respondents