Term Paper of Database Management System

Data objects can model relational data or advanced data types such as graphics, movies, and audio. Smalltalk, C++, Java, and others are objects used in object-oriented data. The object-relational is a combination of relational and object-oriented databases. Traditional and advanced data types can be used to construct database management systems. These systems can connect to a company’s website and update records as needed. Database Approach The main purpose of a database is data storage that can be stored and retrieved when needed. A popular common language called structured query language (SQL) is used to store and retrieve data in relational database. This language enables the systems to run a report or modify data or remove the data from the database. A database management system (DBMS) controls all aspects of a database, this is not limited to the creation, maintenance, and use of database. The DBMS ensures proper applications are able to access the database. An important purpose of a DBMS is to maintain the data definitions (data dictionary) for all the data elements in the database. It also enforces data integrity and security measures. Data Models Data models provide a contextual framework and graphical representation that aid in the definition of data elements. In a relational database, the data model lays the foundation for the database and identifies important entities,

with information it requires to join the information in the tables together as needed, helps support

A relational database is a database that consists of a collection of tables with columns showing entities, and rows showing data. This type of database uses a primary key and foreign key. The foreign key in another table will point to the primary key of a table, and this is how tables can relate to each other. This permits for one-to-one, one-to-many, and many-to-many relationship between the data. An advantage of relational databases includes the ease of adding or modifying new tables and entities without needing to change the structure of the database already in place. Relational database have many features, including indexing, setting data type, and setting validation tests, all these help to ensure data integrity.

Prior to designing my database, I will have a clear understanding of the data. This will allow me to determine the purpose of the database. Once all information is

Constraints are used to ensure the accuracy and integrity of the data contained in the database.

In this lab, you will prepare a Data Dictionary based on the list of elements. Also, your task will be determined the tables, their relationships, primary and foreign keys. Based on this analysis, you will create Database Schema, relational tables, Entity –Relational Diagram (ERD), establish connection to your local MySQL Server, create physical database and insert data to the tables.

The tables in relational databases organize data in rows and columns, simplifying data access and manipulation. It is easier for manager to understand the relational model than put all data in one table. Besides, a relational database allows tables to be linked. And the linkage reduces data redundancy and allows data to be organized more logically. In a word, relational database is easier to control, more flexible, and more intuitive than approaches.

There are several important steps to consider when designing a database, as a well-designed database should be deployed and not only support the accuracy and integrity of business information but also avoid redundant data and assist with has enterprise level reporting tasked. If we analyze the

In creating a database, the most vital steps are identifying the table elements. Upon analysis of the Entities and Attributes for Fleet Truck Maintenance form, the elements of the database tables can be identified. In a table, or relation, the entities and attributes of a table define the structure of a database. An entity is an object of importance about which data can be captured. An attribute is the information that describes the entity. When creating the tables for the Huffman Trucking Fleet Truck Maintenance, entities and their relationships must be taken into consideration (Koenke & Auer, 2010).

Figure 11 shows the relationship of a database using DBMS, connecting the user with the information from the database. A database consists of many data from customers to orders, services, employees, and so on. The user can be a customer or employee. Employees use DBMS to find customer’s information, service types, and service provider information. Later in the process, the DBMS will then extract data from the database to answer the users’ questions.

It also helps in maintaining data consistency in the database. The purpose of normalization is therefore to avoid redundancy by storing each fact within the database only once, to put data into the form that is more able to accurately accommodate change, to avoid certain updating anomalies, to facilitate the enforcement of data constraint and to avoid unnecessary coding. Extra programming in triggers stored procedures can be required to handle the non-normalized data and in turn can impair performance significantly (Davidson & Moss, 2012).

The idea of relational database was first introduced by E.F.Codd at IBM in 1970. It is a kind of computer database in which data is stored in Relations and is represented in the form of tables with rows and columns. Databases can vary in sizes, ranging from very small and simple to very large and complex ones. Database users can access the data practically in an unlimited number of ways. Relational databases help in finding the information in a quick and efficient manner that one is looking for.Today many popular databases use the model of relational database.

Databases allow us to easily store and retrieve data in a purely digital format. The strength of this is that large amounts of data can be stored and retrieved with minimal effort on the part of the user. Opposed to manually flipping through files, one can quickly pull up the requested data through a computer program. Many systems that were conventionally paper and file based have been converted to a digital format which are now stored in one or more databases.

What is database management system? Database Management System is a database program. The DBMS manage incoming data, organize it, and provided ways for the data to be modified or extract by users or other programs. This cause, most database software comes with an Open Database Connectivity (ODBC) driver that allows the database to integrate with other databases. For example, common SQL statements such as SELECT and INSERT are translated from a program's proprietary syntax into a syntax other databases can understand. Some DBMS examples include PostgreSQL, MySQL, SQL Server, Microsoft Access, Oracle, FileMaker, RDBMS, dBASE, Clipper, and FoxPro. It is a software system that uses a standard method of retrieving, and running queries on data.

A project like this takes quite a lot of time to do properly. As is often the case, this project owes its existence and certainly its quality to a number of people, whose name does not appear on the cover. Among them is one of the most extra ordinary programmers it has been my pleasure to work with Mr. Ankur Kaushik, who did more than just check the facts by offering thoughtful logic where needed to improve the project