Introduction To Data Warehousing
Filed Under Architecture, Data Warehousing, Process | Posted on August 9, 2009
A data warehouse is a type of computer database that is responsible for collecting and storing the information of a particular organization. The goal of using a data warehouse is to have an efficient way of managing information and analyzing data. In addition to a relational database, a data warehouse environment includes an extraction, transportation, [...]
Relationships And Relationship Sets
Filed Under Data, Data Model, Databases, Relationships | Posted on August 9, 2009
A relationship is an association between several entities. A relationship set is a set of relationships of the same type. A relationship type R among n entity types E1, E2,….., En defines a set of associations or a relationship set among entities from these types. In ER diagrams, relationship types are displayed as diamond-shaped boxes, [...]
