Oumar Sall
Data Analyst | Excel, SQL & Power BI Expert
New to Contra
Oumar is ready for their next project!
Performed data cleaning and preparation on raw datasets by identifying and removing duplicates, handling missing values, correcting formatting errors, and standardizing data structures. Prepared clean and structured datasets ready for analysis and reporting to ensure accurate and reliable business insights.
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5
Title: SQL Business Data Analysis
Description:
Performed business data analysis using SQL by writing queries to extract, filter, and summarize data. Generated reports on customer behavior, sales performance, and revenue trends to provide actionable business insights.
Tools: SQL
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9
Title: Excel Sales Analysis & Reporting
Description:
Analyzed sales data using Microsoft Excel by cleaning datasets, creating PivotTables, charts, and KPI reports. Built an easy-to-read dashboard that highlights revenue, sales trends, and customer performance to support business decision-making.
Tools: Microsoft Excel
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12
Title: Sales Performance Dashboard in Power BI
Description:
Designed an interactive Power BI dashboard to analyze sales performance across different regions, products, and time periods. The dashboard includes KPIs, monthly sales trends, top-performing products, and regional comparisons, helping businesses make informed decisions through clear data visualization.
Tools: Power BI, Excel
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18