I chose 'AdventureWorksLT2019.bak' and 'AdventureWorksLT2017.bak' data for analysis & visualization.
The query editing was done in 'Microsoft SQL Server Management Studio' and visualization part was using 'Microsoft Power BI'. Also for analysis I used MS Excel and PowerBI's query tool.
Database Link: https://docs.microsoft.com/en-us/sql/samples/adventureworks-install-configure?view=sql-server-ver15&tabs=ssms
From the link above, "AdventureWorksLT2019.bak" and "AdventureWorksLT2017.bak" data were chosen for restoration. From "AdventureWorksDW2019" Database, the following tables were chosen for analysis:
Dim_Customer.sql
Dim_Products.sql
Dim_Date.sql
FactInternetSales.sql
Query Editing Tool: "Microsoft SQL Server Management Studio"
Visualization Tool: "Microsoft Power BI"
DATA VISUALIZATION i. Entity Relationship Diagram Model