d. Define DBMS and the functions it performs. A database administration framework (DBMS) is a PC programming application that connects with the client, different applications, and the database itself to catch and dissect information. A universally useful DBMS is intended to permit the definition, creation, questioning, upgrade, and organization of databases.
Data objects can model relational data or advanced data types such as graphics, movies, and audio. Smalltalk, C++, Java, and others are objects used in object-oriented data. The object-relational is a combination of relational and object-oriented databases. Traditional and advanced data types can be used to construct database management systems. These systems can connect to a company’s website and update records as needed. Database Approach The main purpose of a database is data storage that can be stored and retrieved when needed. A popular common language called structured query language (SQL) is used to store and retrieve data in relational database. This language enables the systems to run a report or modify data or remove the data from the database. A database management system (DBMS) controls all aspects of a database, this is not limited to the creation, maintenance, and use of database. The DBMS ensures proper applications are able to access the database. An important purpose of a DBMS is to maintain the data definitions (data dictionary) for all the data elements in the database. It also enforces data integrity and security measures. Data Models Data models provide a contextual framework and graphical representation that aid in the definition of data elements. In a relational database, the data model lays the foundation for the database and identifies important entities,
Database Environment Silvia Ferreira DBA/380 Jeff Pohl October 14, 2014 A database is used to store collections of information and easily retrieved at a later date. The larger the amount of information, the more organized a database needs to be. A database is created with the requirements and needs of current and future users and most importantly, with past users and their information. Out book defines database systems as “an organization of components that define and regulate the collection, storage, management, and use of data within a database environment”. (Database Systems, 2013)
Database Architecture A database is a structural set of related data that is organized in such a way that the information can be easily managed, accessed, and updated. The purpose of a database is to replace paper documents, files, and filing cabinets. The data collected in databases is an efficient way to store, retrieve, and analyze the information.
There is a thing called a database management system also known as DBMS, which are supposed to use software that is specifically designed to interact with other software applications as well as the user and the database to help analyze and capture data as it comes in. There is a general-purpose database management system, which actually allows databases to be created, updated, defined as well as query and be
Introduction: Databases today are essential to every business. Whenever you visit a major Web site – Google, Yahoo!, Amazon.com, or thousands of smaller sites that provide information – there is a database behind the scenes serving up the information you request (Hector, Ullman, & Widom 2008). Database systems are becoming as common in the workplace as the essential one that it can easily be searched, categorized and recalled in different means that can be easily read and understood by the end user.
Chapter 1: Database Systems TRUE/FALSE 1. Data and information are essentially the same thing. ANS: F PTS: 1 REF: 5 2. Data processing can be as simple as organizing data to reveal patterns. ANS: T PTS: 1 REF: 6 3. We are now said to be entering the “knowledge age.” ANS: T PTS: 1 REF: 6 4. Information implies familiarity, awareness, and understanding knowledge as it applies to an environment. ANS: F PTS: 1 REF: 6 5. Data constitute the building blocks of information. ANS: T PTS: 1 REF: 7 6. Metadata present a more complete picture of the data in the database than the data itself.
Databases allow us to easily store and retrieve data in a purely digital format. The strength of this is that large amounts of data can be stored and retrieved with minimal effort on the part of the user. Opposed to manually flipping through files, one can quickly pull up the requested data through a computer program. Many systems that were conventionally paper and file based have been converted to a digital format which are now stored in one or more databases.
Multi-file database As we’ve increased collection of data, the complexity of data has also risen. Much of the data we use is not in the above, unified format. Multi-file database links different data formats together and allows a more flexible way of organising and using data. It provides users with the ability to link between
Differentiate between database management system and information retrieval system by focusing on their functionalities. Answer: What is database management system? Database Management System is a database program. The DBMS manage incoming data, organize it, and provided ways for the data to be modified or extract by users or other programs. This cause,
Section- 2. The time taken by query to retrieve the data in multimedia database is very high when compared with normal databases that do not contain multimedia files. This is because of the indexing structure used in databases. The regular indexing model is not exactly suitable for the multimedia
Abstract Multimedia data mining is a popular research domain which helps to extract interesting knowledge from multimedia data sets such as audio, video, images, graphics, speech, text and combination of several types of data sets. Normally, multimedia data are categorized into unstructured and semi-structured data. These data are stored in multimedia databases and multimedia mining is used to find useful information from large multimedia database system by using various multimedia techniques and powerful tools. This paper provides the basic concepts of multimedia mining and its essential characteristics. Multimedia mining architectures for structured and unstructured data, research issues in multimedia mining, data mining models used for
Multimedia information administration and storage mainly focuses on empowering database frameworks to manage interactive media content at a very high level of abstraction. In this paper we mainly discuss, what is the database system’s role in managing, controlling and taking the multimedia data to the next level of interaction. Then we discuss, how the part of the database framework converges with the part of media servers that is an extension of traditional file servers with isochronous multimedia information delivery abilities. Media information incorporates an extensive variety of data sorts, similar to feature, sound, still pictures, and music. Our challenge is to provide devices that productively manage multimedia information.
The use of recent and modern multimedia devices which is connected to the internet like scanners, cameras, and especially smart tabs and cell phones made capture, storing, transmission, and sharing of a huge amount of images, songs, and videos much easier and faster