Hello! I'm Alexander Holland, a data analyst with six years of experience in the NHS, specializing in patient experience analysis. My technical expertise includes SQL, Power BI, and Python, which I use to turn data into actionable insights. This portfolio showcases my skills across different analytical domains, from healthcare to business intelligence. I’m passionate about leveraging data to improve processes and outcomes, and I’m continuously expanding my knowledge to take on new challenges in the field of data analytics.
This project focuses on creating a comprehensive sales dashboard using Power BI. It tracks sales performance metrics, and regional sales data. Insights from the dashboard helped in improving sales strategies and identifying areas for growth.
This project involves developing a dynamic sales dashboard using Power BI. The dashboard tracks key performance indicators, monitors regional sales trends, and provides detailed insights into sales performance. These insights were instrumental in optimizing sales strategies and identifying opportunities for revenue growth.
This project focuses on analyzing COVID-19 data to understand the impact and trends globally and by continent. The following steps outline how we derived key insights from the data using SQL.
In this project, we used SQL to clean and prepare housing data from Nashville, USA, for analysis. The cleaning process involved converting data types, altering table structures, populating null values, splitting data into different columns, and removing duplicates to ensure the dataset was accurate and ready for further insights.