Database is collection of data in a structured and more systematic way that helps in retrieving the data easily and efficiently. This chapter describes the benefits and features of the database system. Selfdescribing nature of a database system a database system contains not only the database itself but also the descriptions of data. A comparison between the file based approach and the database approach can be found in the. A database is a computer based record keeping system whose over all purpose is to record and maintains information. Characteristic of dabase approach linkedin slideshare.
Sql is used to define the data in the database and manipulate it when needed. The main characteristics of the database approach s. Advantages of using database approach vs traditional file. Describe the importance of data integrity, security, and. Main characteristics of the database approach answers. Pdf the waterfall model and the agile methodologies.
The stored data should be made available for access by different users simultaneously. In a typical file processing system, each department or area within an organization has its own set of files. List the main characteristics of database approach versus fileprocessing approach. The overall assignment deals with characteristics of database system, its approach and. Meta data basically describes the structure of the database. Information systems should allow interactive access to data to obtain new information without writing fresh programs. For example, if a students address is updated, then it should make sure that there is no duplicate data is created nor there is any data mismatch for that student.
The purpose of this report is to mainly discuss about characteristics of a good database design and a quality design. The database is a single, large repository of data, which can be used simultaneously by many departments and users. A number of characteristics distinguish the database approach from the much older approach of programming with files. It is organized into various charts that are accessed by a variety of computer applications from different locations. The database approach is an improvement on the shared file solution as the use of a database management system dbms provides facilities for querying, data security and integrity, and allows simultaneous access to data by a number of different users. Difference between file processing system and database approach. Knowing about the characteristics of a database system unit characteristics of the database approach and unit example applications we will have a look at file based systems. In traditional file processing, each user defines and implements the files needed for a specific software application as part of programming the application for example, one user, the grade reporting office, may keep files. In the dbms approach, application program written in some programming language like java, visual basic. Sql is used to access data from relational database management systems. There are a number of characteristics that distinguish the database approach with the filebased approach. Characteristics and advantages of database approach.
Chapter 3 characteristics and benefits of a database database. Insulation between programs and data, and data abstraction. The portion of the real world relevant to the database is sometimes referred to as the universe of discourse or as the database miniworld. There are number of characteristics that distinguish the database approach from the. Characteristics of dbms to incorporate the requirements of the organization, system should be designed for easy maintenance. In order to remove all limitations of the file based approach, a new approach was required that must. List the main characteristics of database approach. A comparison between the file based approach and the database approach can be found in the unit advantages and. By eliminating or controlling redundancy, the database approach reduces the risk of inconsistencies occurring. Briefly explain the advantages of object oriented systems. Although the database approach does not eliminate redundancy entirely, it controls the amount of redundancy inherent in the database. The database is a shared collection of logically related data, designed to meet the information needs of an organization.
Database approach has many characteristics that make it more robust in nature. The database approach has some very characteristic features which are discussed in detail in this unit. A database represents some features of real world applications. Main reasons behind writing this report is as part of implementation of stanwell parish plan the need for a database application was identified by several committees. A traditional file system typically provides files to store data. May 20, 2018 database management system protects the database and maintains it over long period of time.
Create a crows foot erd to include the following business rules for the prodco company. In traditional file processing, each user defines and implements the files needed for a specific software application as part of programming the application for example, one user, the grade reporting office, may keep files on students and their grades. The database approach has proven far better than the traditional file management system. Database technology eliminates many of the problems of traditional file organization by organizing data. Introduction to the module university of cape town. Describe the main characteristics of the database approach and contrast it with the filebased approach. Discuss the main characteristics of the database approach and how it differs from traditional file systems. A database management system dbms is software that.
The advantages in the database approach are as follows. Pdf please read the information below for additional. Chapter 1 database approach adapted from elmasrinavathe by dr samir boucetta. The database approach is an improvement on the shared file solution as the use of a dbms provides facilities for querying, data security and integrity, and allows simultaneous access to data by a number of different users. The overall assignment deals with characteristics of database system, its approach and how it replaced the file based approach. Please read the information below for additional information about introduction to database systems. System should be designed to corelate different data to meet new requirements. Learn vocabulary, terms, and more with flashcards, games, and other study tools.
The aircraft characteristics database provides basic aircraft characteristics for common aircraft needed to perform airport design functions. Explain what a database is, including common database terminology, and list some of the advantages and disadvantages of using databases. Selfdescribing nature, support multiple user view of data, share the data and. Discuss some basic concepts and characteristics of data, such as data hierarchy, entity relationships, and data definition. Selfdescribing nature, support multiple user view of data, share the data and multiple user transaction processing and insulation. Let us discus the main characteristics of database approach. Nov 10, 2007 the main characteristics of the database approach. Oct 05, 2018 the aircraft characteristics database provides basic aircraft characteristics for common aircraft needed to perform airport design functions. M relationships requires knowledge of physical data storage characteristics navigational system requires knowledge of hierarchical path changes in structure require changes in all application programs implementation limitations no data definition lack of standards.
A file processing system is a method for storing and organizing computer files and the data they contain to make it easy to find and access them. Difference between file processing system and database approach is that in the past, many organizations exclusively used file processing systems to store and manage data. Companies use a database management system, or dbms, to assist in data organization. Comparison of traditional filebased approach and database. The main characteristics of the database approach versus the fileprocessing approach are the following. There are number of characteristics that distinguish the database approach from the much older approach of programming with files.
Database management allow us to manipulating and sharing the database among various users and applications. In this article, we are going to discuss about the file processing system and database approach, some disadvantages of file oriented approach. In the unit example applications the use of databases in different fields is presented and according to these examples the most important features of the database approach revised. Few of the main characteristics of database approach compared to traditional file systems approach are they are the selfcontained nature of database systems. Insulation between programs and data,and data abstraction. May 25, 2018 the database approach is an improvement on the shared file solution as the use of a dbms provides facilities for querying, data security and integrity, and allows simultaneous access to data by a number of different users. Often they include features such as keyed access and partitioning and encryption.
Selfdescribing nature of a database system a database system contains not only the database itself but also the descriptions of data structure and constraints metadata. Basic concepts databases and database users introduction an example characteristics of the database approach actors on the scene workers behind the scene advantages of using a dbms implications of the database approach when not to use a dbms database system concepts and architecture data models, schemas, and instances dbms architecture and data. Database security is provided and enforced by dbms efficient with 1. Databases are composed of a variety of information that is pertinent and relevant to the organization that is using the database. Simply put, a database is defined as a collection of related information. In the earlier age the computer system was used to store business records and produce different information.
Although the two methodologies are complementary rather than mutually exclusive, a primary emphasis on a bottomup approach may be more productive for small databases with few entities, attributes, relations, and transactions. Discuss the main characteristics of the database a. Characteristics of the database approach main characteristics of database approach selfdescribing nature of a database system insulation between programs and data data abstraction support of multiple views of the data sharing of data and multiuser transaction processing. Discuss the main characteristics of the database approach. Access to data until an online database is complete, aircraft characteristics data is available from the file below and from appendix 1 of ac 1505300a, airport design. In the unit example applications the use of databases in. Automatic recovery feature has to be provided to overcome the problems with processing system failure. Centralized design is productive when the data component is composed of a relatively small number of objects and procedures. The database approach attempts to eliminate the redundancy by integrating the file. The database approach is a way in which data is stored within a computer. This is followed by a discussion of the shortcomings of traditional database applications. Jan 21, 2018 a traditional file system typically provides files to store data. There are two classical approaches to database design.
In traditional file management system, structure of data files was defined in the application programs so user had to change all the programs that are using that particular data file. Introduction to database systems characteristics of database approach. Cs3462 introduction to database systems helena wong, 2001 filebased approach 1 traditional filebased systems filebased system predecessor to the dbms a collection of application programs that perform services for the endusers such as the production of reports. Characteristics of the database approach main characteristics of database approach selfdescribing nature of a database system. Selfdescribing nature of a database system a database system contains not only the database itself but also the descriptions of data structure and constraints meta data. A database is a persistent, logically coherent collection of inherently meaningful data, relevant to some aspects of the real world. The design can be carried out and represented in a fairly simple database. Database approach contains both data and meta data.
Advantages of using database approach vs traditional. Although the database approach does not eliminate redundancy. Start studying 2 file based approach vs database approach. The database approach has four common characteristics. What are the main characteristics of the database approach.
In traditional file processing, each user defines and implements the files needed for a specific software application as part of programming the application. With a file based approach each user defines and creates with a specific software the files he needs for a specific application. Basic concepts databases and database users characteristics. Program data independence provides a big relief to database users. In the below assignment all the characteristics of database has been described. Until an online database is complete, aircraft characteristics data is available from the file below and from appendix 1 of ac 1505300a, airport design. There are a number of characteristics that distinguish the database approach from the filebased system or approach. Analyze the key issues and application of databases within organizational environments. Some advantages of a database approach include consistent information, flexibility, easy management of data security and privacy and a reduced application development time. Sql is used to create and drop the database and table. A fundamental characteristics of the database approach is that the database system contains not only the. Dec 06, 2015 there are a number of characteristics that distinguish the database approach with the filebased approach. Advantages and disadvantages of database systems advantages a number of advantages of applying database approach in application system are obtained including. Characteristics and advantages of database approach uk essays.
Advantages of using database approach vs traditional file processing what is a file processing system. Dbms provides a view facility that enables user to have higher view of database. Control of data redundancy the database approach attempts to eliminate the redundancy by integrating the file. Difference between file processing system and database.
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