deletenomore / nutrition-relational-database-project-

Relational-Database-Team-Project

INTRODUCTION

The objective of the project is to create a prototype of a relational database management system (RDBMS) associated with food, nutrition, and people. By utilizing this RDBMS, we can answer some questions such as how to create a healthy diet, choose a reasonable amount of food, and figure out the essential nutrition for certain age groups of people. We believe that promoting living a healthy life is significant. The domains of the data in this project include food, food category, nutrition of the food, people, and essential nutrition of people.

METHODS

The method to construct this project follows a regular pathway to build up an RDBMS, including formulating functional dependencies of the domains, constructing the schema, creating a UML diagram for the relationship, fixing violations of the normalization, creating the DBMS, and utilizing the DBMS to answer our questions.

UML DIAGRAMS

According to the UML diagrams (Figure 1), R1:People and R2: people_daily_nutrition is one-to-one relationship; R1: people and R6: people_daily_calorie is one-to-one relationship; R2: people_daily_nutrition and R3: food is one-to-many relationship; R3: food and R4: food_nutrition is one-to-many relationship; R3: food and R5: food_group is a many-to-one relationship.

CODE IMPLEMENTATION

First, run INITIALIZATION to build up the database with the data tables. Second, run Queries_All_in_One to test four type of queries: Aggregation, Subquery, Insert, and Update