Use 'Active' Model Templates to facilitate reusable modeling metadata and to implement/enforce enterprise standards Erwin Data Modeler is now certified…
Video Tutorial 1: What is a Data Model and Data Modeler Responsibilities? What's in it: Data Model, High Level Data…
Entity Relationship Diagram (also called as ER Diagram, ER Model, ERD) contains entities/attributes and relationships with those entities. ER Model…
Data Modeling Data Modeling Overview Data Modeling Overview Data Modeling Development Cycle Steps to Create a Data Model Data Modeler…
Challenges & Solutions in Data Modeling: Anyone can Learn Data Modeling Concepts by reading some books or going through online…
Fact Table | Star Schema: The centralized table in a star schema is called as FACT table. A fact table…
Snowflake Schema: A snowflake schema is a term that describes a star schema structure normalized through the use of outrigger…
Star Schema: General Information In general, an organization is started to earn money by selling a product or by providing…
What are Slowly Changing Dimensions? Dimensions that change over time are called Slowly Changing Dimensions. For instance, a product price changes…
In a relational data model, for normalization purposes, year lookup, quarter lookup, month lookup, and week lookups are not merged…