Data Modeling – How to design it?
Vishal Jadhav Data modeling is a structured approach to designing and organizing data for a database or system. Here are the key steps: 1. Identify Business RequirementsUnderstand the purpose of the data…
Data Modeling
SCD Types Explained with Examples
Slowly Changing Dimensions (SCD) are used in data warehousing to manage historical changes in dimension tables. There are several types of SCDs, each handling data changes differently. Types of SCDs…
Surrogate key
Surrogate keys are artificially generated primary keys, typically integers, used to uniquely identify records. In data warehouse you may have same record with multiple entries(this records columns value may change…