Relational and Object-oriented Database Management Systems
A database is a “shared collection of logically related data designed to meet the information needs of multiple users in an organization” (Hoffer 709). Databases contain data records or files, such as sales transactions, product catalogs and inventories, and customer profiles. Databases allows multiple users in an organization to easily access, manage, store, and update data when needed.
A database management system is software designed to assist in maintaining and utilization large collections of data, and the need for such systems and their use. The first general-purpose database management system (DBMS) was designed by Charles Bachman who worked for General Electric in 1960. The original system was actually called the Integrated Data Store and was used to form the basis for the network data model.
Later, IBM developed its’ own version of DBMS and called it the Information Management System (IMS) DBMS. IMS eventually formed the structure for an alternative data representation framework called the hierarchical data model. This new system allowed several people to access the same data through a computer network.
Although there may be innumerable advantages of using a DBMS to manage data, there are six worth mentioning. First, data is independent. Second, there is efficient data access. A DBMS uses a variety of techniques to store and retrieve data. This allows for data to be sorted in additional places such as external storage devices. Third, the DBMS can enforce data integrity and security by enforcing access controls that govern what data is visible to different users.
A fourth advantage of using a DBMS is centralized data administration...
... middle of paper ...
...om
Hoffer, Jeffrey A., Joey F. George, and Joseph S. Valacich. Modern Systems Analysis & Design. 3rd edition. New York: Prentice Hall, 2002.
Mattison, Rob. Understanding Database Management Systems. New York: McGraw-Hill, 1998.
Ramakrishnan, Raghu, Johannes Gehrke. Database Management Systems. 2nd edition. Boston MA: McGraw-Hill, 2002.
Rolland, F.D. Relational Database Management with Oracle. Mass: Addison-Wesley Publishing, 1989.
http://www.ad.ic.ac.uk/cpd/objects.htm
http://www.dacs.dtic.mil/techs/oodbms2/oodbms-overview.shtml
http://www.dacs.dtic.mil/techs/oodbms2/oodbms-characteristics.shtml
http://www.dacs.dtic.mil/techs/oodbms2/oodbms-application.shtml
http://www.dacs.dtic.mil/techs/oodbms2/oodbms-summary.shtml
http://www.ksccary.com/article5.htm
http://searchcrm.techtarget.com/tip/1,289483,sid11_gci777107,00.html
It is often hard to comprehend the amount of tireless effort it took to create such a superior country as America is. America’s ancestors worked tirelessly to give today’s people freedom. Much gratitude is owed to Christopher Columbus and George Washington for their success and impact on The United States of America. Though their success did not happen overnight, many Americans may think so. Both pioneers of advancements faced and overcame challenges and adversities. Both men were faced with the challenge of being leaders. Christopher Columbus was faced with the adversity of having a different culture while George Washington was faced with a war. These hardships forced both men to work very hard and ended up becoming two of the most respected men of America.
Achilles may have been the hero of The Iliad, but it is clear he was prone to the weakness of anger from his honor being challenged. His pride causes him to make bad choices, but equally this same pride is necessary in the heroic code, one has to prove himself a hero. Despite this, in the end he is quite changed. The death of Patroclus and his isolation has caused him to see the heroic code he has been living by in different light. He even gives the Trojans time to have a proper funeral for Hector. Achilles in the end is a different Achilles from the beginning of the tale, he has slowly returned to a civilized state and a more developed character.
A database management system, or DBMS, gives the user access to their data and helps them transform the data into information. Such database management systems include dBase, Paradox, IMS, and Oracle. These systems allow users to create, update, and extract information from their databases. Compared to a manual filing system, the biggest advantages to a computerized database system are speed, accuracy, and accessibility.
In 1977, Larry Ellison, Bob Miner, and Ed Oates founded System Development Laboratories. After being inspired by a research paper written in 1970 by an IBM researcher titled “A Relational Model of Data for Large Shared Data Banks” they decided to build a new type of database called a relational database system. The original project on the relational database system was for the government (Central Intelligence Agency) and was dubbed ‘Oracle.’ They thought this would be appropriate because the meaning of Oracle is source of wisdom.
First of all, classes such as these would prepare students who are planning on entering that occupational field. Many students have entered that particular field in college, however too many have no high school education pertaining to it. The job outlook for a profession dealing with animals—such as a veterinarian—is expected to increase by thirty-six percent within the next ten years.* At the same time however, high school students preparing to become a veterinarian are only taking the general science classes because they do not have the option of taking any animal science classes.* Many other classes that act as additional help to prepare for a specific occupation are being offered. At Hurricane High School alone, there are over 20 Career Technology Education classes including Foods and Nutrition, Clothing, Emergency Medical Services, and several more. Students need to be prepared for what they will learn in college. With Animal Science classes, future veterinarians can be one step...
Through the many obstacles, America has experienced; George Washington helped this free country become united and created by the people for the people. We know and call him by the title of the Founding Father of the United States. In three important ways, Washington helped shape the beginning of our evolving civilization. For instance, he commanded the Continental Army that won American Independence from Great Britain, known as the Revolutionary War. He was also nominated the president the U.S. Constitutional Convention, which later wrote the U.S. Constitution. In addition to these achievements, which created a strong foundation for America, he became the country’s first presidential leader.
The construction of Object-Oriented Database Management Systems started in the middle 80's, at a prototype building level, and at the beginning of the 90's the first commercial systems appeared. The interest for the development of such systems stems from the need to cover the modeling deficiencies of their predecessors, that is the relational database management systems. They were intended to be used by applications that have to handle big and complex data such as Computer Aided Engineering, Computer Aided Design, and Office Information Systems.
...1790’s might have thought the impossible. He did something people of today might have thought impossible. George Washington is the first president of the United States of America and he deserves the acknowledgement he receives.
A database management system (DBMS) is computer software designed for the purpose of managing databases. Typical examples of DBMSs include Oracle, IBM's DB2, Microsoft Access, Microsoft SQL Server, MySQL, 4th Dimension and FileMaker. DBMSs are typically used by Database administrators in the creation of Database systems.
A Database Management System (DBMS) is a software system that uses a standard way of classifying, retrieving, and running queries on data. The DBMS functions is to manage any incoming data, organize it, and provide ways for the data to be modified or extracted by users or other programs. Some examples of DBMS are PostgreSQL, Microsoft Access, SQL Server, FileMaker, Oracle,Clipper and FoxPro. Since there are so many database management systems are available, so it is important to ensure that they communicate with each other. This is because, most database software comes with an Open Database Connectivity (ODBC) driver which allows the database to incorporate with other databases.
Database & Information Systems is a database used in everyday life, it was used in the past, is used in the present, and will continue to be used in the future. There are single and multiuser databases, as well as N Tier an client servers. There are many types of Data models such as, relational and star schema. Databases and information systems are even used on the web, these types can include PHP scripts and CGI scripts. To understand how Database & Information Systems came about, one has to look at the history of data.
Databases are becoming as common in the workplace as the stapler. Businesses use databases to keep track of payroll, vacations, inventory, and a multitude of other taske of which are to vast to mention here. Basically businesses use databases anytime a large amount of data must be stored in such a manor that it can easily be searched, categorized and recalled in different means that can be easily read and understood by the end user. Databases are used extensively where I work. In fact, since Hyperion Solutions is a database and financial intelligence software developing company we produce one. To keep the material within scope I shall narrow the use of databases down to what we use just in the Orlando office of Hyperion Solutions alone.
A database is an ordered collection of data that usually can be accessed through many different ways. A databases most important function is retrieving information. But Databases also have many other functions pertaining to information, including being able to sort, store, and locate information. The easier a database can access information the more effective the database is. Most of todays complex databases are found on a computer.
The Database Management System (DBMS) is software that enables the users to define, create, maintain and control the access to the database. It is a software that interact with the user’s applications programs and it database. Meanwhile, information retrieval system is a system that involved the activity that the systems obtain the information. The obtaining information action need the information from it resources.
In our world, people rely heavily on the power of technology every day. Kids are learning how to operate an iPad before they can even say their first word. School assignments have become virtual, making it possible to do anywhere in the world. We can receive information from across the world in less than a second with the touch of a button. Technology is a big part of our lives, and without it life just becomes a lot harder. Just like our phones have such an importance to us in our daily lives, database management systems are the same for businesses. Without this important software, it would be almost impossible for companies to complete simple daily tasks with such ease.