Certification Magazine: CertMag Details Diversity of Databases; Column Looks at Tools in This Sector.CHICAGO -- The term "database" is almost as general as "information technology"--the word has a variety of meanings that can change according to according to prep. 1. As stated or indicated by; on the authority of: according to historians. 2. In keeping with: according to instructions. 3. the user and context. One could refer to databases in the traditional hierarchical A structure made up of different levels like a company organization chart. The higher levels have control or precedence over the lower levels. Hierarchical structures are a one-to-many relationship; each item having one or more items below it. sense, with a structure arranged according to the pecking order pecking order Basic pattern of social organization within a flock of poultry in which each bird pecks another lower in the scale without fear of retaliation and submits to pecking by one of higher rank. For groups of mammals (e.g. of objects, or to complex object-oriented databases See object database. (database) object-oriented database - (OODB) A system offering DBMS facilities in an object-oriented programming environment. Data is stored as objects and can be interpreted only using the methods specified by its class. , which are subdivided by classes and their interrelations. The Tools column in the August 2005 edition of Certification Magazine will overview these main categories as well as look at the market for database management systems. To read the article, visit www.certmag.com. |
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