The buisness request was to design a dashboard where stakeholders are able to analyze the reason behind the increase in the bills amount from a month to another.
Tools used : Microsoft SQL server & Oracle developer & Microsoft Power BI
First : A SQL script was written to export invoice data from the data base, then specifying the bills which has a previous record.
Second: Another SQL script that Extract the bills which is only generated in an indvidual month and not repeated in the next month.
Third: Data modeling to connect the 2 table togther by adding key column in both tables to build a relationship.
Fourth: designing a dashboard to show the insights and the details of each month bills.