The impact of escaping Referential Integrity on building Wide Facts in Data Warehouse – Data Orphanage
What is Wide-Facts, why we need it? “Wide-Fact” is a fact table that contains a high number of columns and […]
What is Wide-Facts, why we need it? “Wide-Fact” is a fact table that contains a high number of columns and […]
Rank(): Dense_Rank() Row_Number() Showing Difference between Rank, Dense Rank , and Row Number in a single view: Partition By Clause:
Last week I found an interesting SQL problem posted by Ankit Bansal on LinkedIn, and my solution to the problem
Automating repetitive tasks on your computer can save time and effort. In this article, we will guide you through the
Question:Write a SQL to find trade couples satisfying the following conditions for each stock:– The trades should be within 10
Starting out as an ETL Developer? Asking smart questions is your secret weapon! First, inquire about the most commonly used
Star Schema: Dimensional data model, that has a fact table in the centre, surrounded by denormalized dimension tables. Snowflake Schema: