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 …
Databases are collections of organized information. The data is normally organized to help model the aspects of the information in a manner that support processing requests for information in a useful manner. A DBMS (database management system) is an application that is designed specifically to interact with the end-user, the database of information, and other …
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 …
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 …
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 …
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 …
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 …