A multimedia database is a database that hosts one or more primary media file types such as .txt (documents), .jpg (images), .swf (videos), .mp3 (audio), etc. And loosely fall into three main categories: Static media (time-independent, i.e. images and handwriting) Dynamic media (time-dependent, i.e. video and sound bytes) Dimensional media (i.e. 3D games or computer-aided …
Most people are familiar with terms like data warehousing, data mining, and data cleansing, but fewer people are familiar with data mart. A data mart is a subsection of a data warehouse that deals with specific information. Much like the chapters of a book, a data mart contains related information that deals with the same …
Data Management is a broad field of study, but essentially is the process of managing data as a resource that is valuable to an organization or business. One of the largest organizations that deal with data management, DAMA (Data Management Association), states that data management is the process of developing data architectures, practices, and procedures …
Database replication is the creation and maintenance of multiple copies of the same database. In most implementations of database replication, one database server maintains the master copy of the database and additional database servers maintain slave copies of the database. Database writes are sent to the master database server and are then replicated by the …
A relational database stores data in separate tables instead of placing all data in one large table. It then allows Data Base Administrators (DBAs) to define relationships between these tables. These relationships enable DBAs to combine data from several tables for querying and reporting. This is accomplished through the use of keys, which are database …
When a company or organization wants to combine all of their information and resources into one stockpile for easier analysis and research, they use the OLAP cube to comprehensively link and find the information that they need. OLAP cubes allow you to add fact sheets of information to a specific product or project and then …
A transactional database is a database management system (DBMS) that has the capability to roll back or undo a database transaction or operation if it is not completed appropriately. Although this was a unique capability several decades ago, today the majority of relational database systems support transactional database operations. What is a Database Transaction? Whenever …
MOLAP is the term used to refer to multidimensional online analytical processing. It extends traditional OLAP processing through indexing directly into a multidimensional database. This allows users to view various data aggregates in different manners without the added overhead required to conduct similar operations with a relational database. Advantages and Disadvantages of MOLAP Some of …
MySQL The MySQL database server is the world’s most popular open source database server. Over six million installations use the MySQL database server to power high volume websites and other mission critical business systems including industry leaders like NASA, Yahoo, The Associated Press (AP), Suzuki, and Sabre Holdings. MySQL is an attractive alternative to high …
A data warehouse is a place where data is stored for archival, analysis, and security purposes. Usually a data warehouse is either a single computer or many computers (servers) tied together to create one giant computer system. Data consists of raw data or formatted data. It can be on various types of topics including the …