ETL Testing Interview Questions and answers.
.1 What is a Data Warehouse?
: A Data Warehouse is a collection of data marts representing historical data from different operational data source (OLTP). The data from these OLTP are structured and optimized for querying and data...
Friday, May 29, 2015
Data Normalization
Data Normalization
In this section you will learn the concepts of data normalization. The most important thing in database designing is to make sure that the data get properly distributed among the tables. Simply we can say that the designing of the table in proper manner is called Normalization.
Normalization...
