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History of database with technology
History of Database Management System
History of database with technology
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Object-Oriented Database Management Systems
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.
The area of the OODBMSs is characterized by three things. First, it lacks a common data model. There is no common data model although many proposals can be found in the literature. This is a more general problem of all the object-oriented systems not only the database management systems. Since the data model determines the database language of the system, which in turn determines the implementation of the system, we can understand that the differences between the various systems with different data models can be big and substantial. Second is the common theoretical framework. Although there is no standard object-oriented model, most object-oriented database systems that are operational or under development today share a set of fundamental object-oriented concepts. Therefore the implementation issues in OODBMSs that arise due to these concepts are universal. The third characteristic is that of experimental activity.
Plenty of prototypes have been implemented and some of them became commercial products.
There is really a need for applications to handle very complex data and that is why the interest of people in building such systems is...
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... D.K. Practical Application of Object-Oriented Techniques to Relational Databases. Wiley/QED, 1994.
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Delobel, C., C. Lecluse, and P. Richard. Databases: From Relational to Object-Oriented Systems. ITP, 1995.
Gray, P.M.D., K.G. Kulkarni, and N.W. Paton. Object-Oriented Databases: A Semantic Data Model Approach. Prentice-Hall, 1992.
Hughes, J.G. Object-Oriented Databases. Prentice-Hall, 1991.
Kemper, A. and G. Moerkotte. Object-Oriented Database Management: Applications in Engineering and Computer Science. Prentice-Hall, 1994.
Kim, W. Introduction to Object-Oriented Databases. MIT Press, 1990.
Loomis, M.E.S. Object Databases: The Essentials. Addison-Wesley, 1995.
Rao, B.R. Object-Oriented Databases: Technology, Applications, and Products. McGraw-Hill, 1994.
The most remarkable achievement of the Maya was their calendar. Every Mayan achievement listed, however, are very remarkable in their own right. Remnants of the Mayan society are still seen throughout our world today from all four of their discussed achievements. One could have an ethnocentric denial of the sheer remarkability of the advancements of the Maya because of some of the advancements of the Western World at that time period, however, the Maya achieved feats that the Western World could not even fathom. In fact, much of Maya architecture, such as their pyramids, cannot even be replicated today. The Mayan civilization may have physically declined centuries ago, but their concepts and principles will forever keep the Maya alive.
Many individuals had helped advance the Renaissance the belief in humanism. These people were great thinkers and their ideas are still considered achievements today. One of these great thinkers was a woman, to be specific she was the first woman artist, Sofonisba Anguissola. Being the first woman artist, during a time of mainly male artist’s is an achievement in of itself, but her work on self-portraits helped in shaping the renaissance and in advancing the ideal of humanism. Painting since her father sent to her to train under the great painter Bernardino Campi the age of 14. Sofonisba quickly mastered painting techniques, developing such life-like paintings that “they seem to confront nature itself” (Sofonisba Anguissola).
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.
The OODBMS is the product of merging object oriented programming ethics with database management ethics. Object oriented programming concepts such as encapsulation, polymorphism and inheritance are imposed as well as database management concepts such as the ACID properties (Atomicity, Consistency, Isolation and Durability) which show the way for system reliability, it also supports an ad hoc query language and secondary storage management systems, which is allocated for managing very large amounts of data. The Object Oriented Database program specially lists the following features as compulsory for a system to support before it can be called an OODBMS; Composite objects, Object uniqueness, Encapsulation, Types and Classes, Class or Type Hierarchies, Overriding, overloading and late binding, Computational fullness, Extensibility, Perseverance, Secondary storage management, Concurrency, Recuperation and an Ad Hoc Query capacity.
The database application design can be improved in a number of ways as described below:
[7] Elmasri & Navathe. Fundamentals of database systems, 4th edition. Addison-Wesley, Redwood City, CA. 2004.
From 2000 BC to 900 AD, located in Mesoamerica, the Maya Civilization possessed many successes, especially throughout the Classic period. The Maya Civilization maintained individual states that governed themselves. As a result of individual cities, many things were discovered, such as new ways of farming, math, and astronomy. The Maya Civilization can be divided into three periods, the Preclassic, the Classic, and the Post classic. Through these periods the Maya rose to it’s height, becoming a very successful empire. The Maya Empire was able to gain and maintain power through trade, the development of math and astronomy, and the use of resources the Maya obtained around them.
Oracle's relational databases represent a new and exciting database technology and philosophy on campus. As the Oracle development projects continue to impact on University applications, more and more users will realize the power and capabilities of relational database technology.
This data model organizes data is a tree-like structure similar to the organizational structure. This structure allows the repetition of information using parent/child relationship. One-to-many relationship is created as one parent can have many children but a child belongs to only one parent. This model is the first data base model created by IBM in 1966. It was used in Information Management System (IMS) developed by IBM. Later Microsoft employed it in Windows Registry. This data model replaced the Flat file database system because it was more fast and simple but inflexible as the relationship was restricted to one-to-many.
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.
A database management system in the main software tool of the database management approach because it controls the creation, maintenance, and use of the database of an organization and its users. The three major functions of a database management system are first to create new database and database application. Second to maintain the quality of the data in an organized database. And last to use the database of an organization to provide the information that its end users need. An example of a database management approach in a banking information system. Note how the savings, checking and installment loan programs use a database management system to share a customer database. Note also that the database management system allows a user to make direct, ad hoc interrogations of the database without using application programs.
The Maya’s were a very educated and intelligent tribe. They managed to live their lives with as little amount as trouble as possible. There was always a way for the Maya’s to find a new way to make life easier to survive.
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.
· The illiterate does not have the reading and writing skills to reinforce these skills in their children.