Relational | Dimensional Data Modeling: Relational Data Modeling is used in OLTP systems which are transaction oriented and Dimensional Data…
Logical | Physical Data Modeling: When a data modeler works with the client, his title may be a logical data…
Logical and Physical Data Modeling Objects: To become a data modeler, you need to understand the concepts of a database. Before…
Analysis of Data and creating Tables & Relationships: Usually in a data model, Tables (Entities) looks like rectangular or square type…
Data Modeling Development Cycle Following are the important phases in the Data Model Development Life Cycle. Gathering Business Requirements Conceptual…
SuperType and SubType in Data Modeling: At times, few entities in a data model may share some common properties (attributes)…
Dimensional Data Modeling comprises of one or more dimension tables and fact tables. Good examples of dimensions are location, product,…
The completed relational data model is shown in the previous part and the corresponding data stored in database are shown in separate…
Upon discussion with business analysts, data modeler can come up with the following conclusions regarding grouping and relationship between the…
The sample source data shown in the table below provides the information about employees, their residential state, county, city and…