History of Relational Database

Hao-Wei He Wilmington University October 9, 2010 Abstract Database system have been inseparable with our daily life, since IBM developed the hierarchical database management system in 1969, database system has been innovated many times, such as hierarchical database, network database, relational database, and object-oriented database. Nowadays, relational database still is the most popular model used by different industries; this article is going to introduce the history of the relational database.History of Relational Database Data, which can be defined as an entity of meaning, it is the original material to construct message and knowledge. Thanks to the assistance of computer, data processing practices reached several important milestones. The earliest way to store data are done through manual file management, all documents will be filed and then store, but this method had many processing restrict, such as search, storage takes up a lot of space, and cannot be access by people at the same time.
After IBM announced the first set of hard disk drive for data storage in 1956, due to the innovate development of hard drive, and the access speed much faster than magnetic tape, it replaced the tape drive gradually, and then direct access file system developed. Although direct access file system could access each files directly and improved a lot of missing, but since the objects are files, it still lack of flexibility of processing. Database can be considered to automatically query and modify data sets.There are a variety of database types; from the simplest store all kinds of information forms to large-scale database systems that able to process a variety of mass data storage, are widely used in all inspects of applications. The advantages of database management system: * Reduced redundancy * Integrated data * Integrity * Data commonality * Protect data safety and privacy The disadvantages of database management system: * Overall operating cost will increase * More complex to use Need to backup regularly, or unexpected conditions will cause serious data damage * Hard to training database administrator * Difficult to integrate or manage different format from multi systems Therefore, there was an idea about divide files into a sum of record, and store it as an unit in the computer, it also formed the “Centralized Database System”, it can record a record through hard disk drive, and can directly navigate to the record or fields for further data processing and computing.This concept also derived to the following data types: * Hierarchical Data Model (1960s) Use record as a processing unit, and organize record by tree structure. As a result of the characteristic of tree structure, hierarchical data model particularly suitable for describe “One to Many” data composition relationship but “Many to Many” relationship.
* Network Data Model (1970s)As a result of the tree structure does not reflect network connection relationship between data and data, so after hierarchical data model, some groups proposed “Network Data Model”, organize records by network structure. However, records in both Hierarchical data model and network data model use link to strung together, so when programming applications must accommodate the structure status between links, a lot of dependencies between programming applications and data structure, and the independence of data is hard to reach, cause the system difficult to maintain. Relational Data Model (1970 ~ present) Edgar Codd, a British computer scientist, proposed “Relational Data Model in 1970, emphasize the applications should not have any dependencies with internal structure of data, it also known as “Data Independence”, this data model lead the development of the database system entered a new milestone. In relational data model, data use record as a processing unit, and organize record in tabular form.The applications just face to the tabular structure, without to understanding the internal structure of the data. Conclusion Relational Database Management System (Relational DBMS) is the most widely used database management system in recent years, the mainly reason is the concept of relational data models is simple, and the basic theory was developed very completely. Since Relational Database management System be proposed in 1970, almost all the commercial database management systems are based on this model.

We often hear of the data table, is a relational database foundation.References Yung-Fang Chen, Relational Database management system lecture, Retrieved from http://allen. chen. name/teachdata. htm Jeffrey H. , Mary P. , & Heikki T.
(2009). Modern Database Management 9th Edition. Upper Saddle River, NJ: Pearson Shou-Jeng Tseng. Review Database System and Future Research Develop. Taiwan, Retrieved from http://www. iicm. org.
tw/communication/c1_1/page02. html.

Don't use plagiarized sources. Get Your Custom Essay on
History of Relational Database
Just from $13/Page
Order Essay
Place your order
(550 words)

Approximate price: $22

Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
The price is based on these factors:
Academic level
Number of pages
Basic features
  • Free title page and bibliography
  • Unlimited revisions
  • Plagiarism-free guarantee
  • Money-back guarantee
  • 24/7 support
On-demand options
  • Writer’s samples
  • Part-by-part delivery
  • Overnight delivery
  • Copies of used sources
  • Expert Proofreading
Paper format
  • 275 words per page
  • 12 pt Arial/Times New Roman
  • Double line spacing
  • Any citation style (APA, MLA, Chicago/Turabian, Harvard)

Our guarantees

Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.

Money-back guarantee

You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

Read more

Zero-plagiarism guarantee

Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.

Read more

Free-revision policy

Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.

Read more

Privacy policy

Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.

Read more

Fair-cooperation guarantee

By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.

Read more
Live Chat+1(405) 367-3611Email

Order your essay today and save 15% with the discount code SUCCESS