Network A Network Database Model - 1807 Words

Network – A network database model helps to allow different records to be linked to the same owner file. This is usually looked upon as an upside down tree which make it look as if it is linking up to the owner bit that is at the bottom of the tree. This helps to make it look flexible. Also the relationship within the database model can be seen as a many-to-many relationship, which means it can be linked to many different file etc. Advantages: There are some advantages and disadvantages to this model, the advantage of this is that it is more capable of handling the different amount relationships within which include the one to one and many to many relationships. It is much easier access than a hierarchical model, and the data is more independent. (Easy2teacH) Disadvantages: Although there are some disadvantages as when one of the structures changes then there will be a lack of independence within the structures as it is compulsory to change the application. And the records must be maintained by using the pointers which in turn makes it more complex. (Easy2teacH) Object Database – An object database is when objects are stored instead of data types like integers or strings. Objects are given an identity so that a reference can be given to it. Objects usually contain attributes and methods. Other objects that can be used are indexes, stored procedures, sequences, and many other objects. When creating a new object, a new one can’t be created this is because all the differentShow MoreRelatedNetwork Database Model : A Network Model1599 Words   |  7 PagesNetwork Database Model A Network Model is a type of database which will be structured so that we can see all the relationships between all the different records It basically allows you numerous of records to be linked to the original record. The relationship that you will see in this database will be many-to-many this is because the starter record will be linked to nearly all the other records in the database. The advantages of using Network Database Model is that it there is flexibility, it isRead MoreDescribing Storing Data from Dbms1240 Words   |  5 Pages (Traditional Models) Introduction A computer database relies upon software to organize the storage of data. This software is known as a database management system (DBMS). Database management systems are categorized according to the database model that they support. The model tends to determine the query languages that are available to access the database. A great deal of the internal engineering of a DBMS, however, is independent of the data model, and is concerned with managingRead MoreWhat Are The Four Types Of Database And Their Pros And Cons1172 Words   |  5 PagesIntroduction: In this document I am going to explain what database is and then I am going to list four different types of database and their pros and cons (Advantages and Disadvantages) for all databases that has been listed. And finally I am going to give an example of each database when it can be used. What is a Database? A database is a group of data and ii is often shortened DB. They are mainly or normally used for two purposes. Storing data and sorting data. You can save different types ofRead MoreLogical Data Model And Its Dbms Products1564 Words   |  7 PagesPart 2: Logical Data Model and its DBMS Products: 2.1 Logical Data Model: A logical data model is a data model for a particular problem are presented related to a specific data management technology. Without being specific to a particular DBMS product, it describes the data as much as details (Watt and Eng 2014). As we mentioned before, there is another type of DBMS involved in the logical data model such as hierarchical data model and network data model, which will be discussed in the followingRead MoreWhat is the Purpose of a Database Management System?1474 Words   |  6 PagesThe purpose of this paper is to explain what a Database Management System (DBMS) is, the main principles of database design and to describe the features or characteristics of four prevalent database models. What is a DBMS? A database management system could be described as a file processing system that creates and administers data and or objects as information for the purpose of access and storage in a convenient way. Many types of programs have been written to add and extract information fromRead MoreInformation Storage And Management System1373 Words   |  6 Pagesthe occurrence of database management systems (DBMSs) (Ramakrishnan Gehrke 2000). ‘A database is a large, persistent, integrated collection of dynamic data that provides more operations to describe, establish, manipulate, and access the data’ (Bergholt et al. 1998, p. 7). ‘A database management system (DBMS) is software designed to assist in maintaining and utilizing large collections of data’, in which users can input data, share data, edit data, manipulate data in the database (Ramakrishnan GehrkeRead MoreThe Evolution of The Database Essay example847 Words   |  4 Pagesrevolutionized information storag e and retrieval. Thus the first databases where born. Flat File Flat file databases where the first of many database models, almost as old as the computer. Flat file databases stored data in text files saved in the file system. There was little to no organization, it was a step backwards in data organization. The only real befit was that data could be retrieved remarkable speed, when the database was used by a very skilled programmer. This created a new problemRead MoreHistory of Relational Database Essay743 Words   |  3 PagesHistory 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 introduceRead MoreCyber Analytics : Machine Learning For Computer Security1570 Words   |  7 PagesFacebook, Twitter, Google and Microsoft for spam detection. Opportunities for Machine Learning in Cyber Security Machine Learning (ML) is a growing field of computer science which is used to develop computer programs that uses algorithms to develop models that can adapt themselves to changes in input data. Machine Learning uses algorithms for mainly two reasons: one is to predict new data and second, to analyze existing data. In the first case, once data is gathered, algorithm is applied on it to predictRead MoreAnnotated Bibliography On Hierarchical Database902 Words   |  4 PagesHierarchical Database Kind of database model which is designed in a hierarchy completely access to data beginning at the highest of hierarchical then changes to down such as customer to order. Also this system relation records together same a family tree that each record has just one owner. The hierarchical typical structure has levels which shows one –to – many also relationship between a parent and children divisions. The main key this models which following by each parent can have many children