Article library

Projects worth opening

Follow a dataset from the first question to the finished result. Articles below are planned and well-researched.

Data Projects · Power BI

I Analyzed 100,000 Sales Transactions and Built an Interactive Power BI Dashboard

I plan to clean transaction data, model sales and product tables, and test which products drive revenue and profit.

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Data Projects · Finance

I Turned an Invoice Export into an Interactive Receivables Dashboard

I plan to calculate overdue balances, build aging buckets and design a report that helps identify collection priorities.

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Data Projects · Power Query

I Combined 12 Messy Sales Files into One Refreshable Dashboard

I plan to fix inconsistent columns, automate monthly imports and validate the figures before building the report.

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Markets & Trends · Company Data

I Put 10 Years of Nike’s Financial Data into One Dashboard

I plan to compare published revenue, margins and regional performance in an interactive financial analysis.

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Markets & Trends · Company Data

I Analyzed Costco’s Financial Statements to Understand Its Profit Model

I plan to compare membership fees, merchandise sales and margins using published company reports.

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Markets & Trends · Historical Data

I Turned 20 Years of Gold Prices into an Interactive Dashboard

I plan to compare historical price movements and draw clearly sourced observations without forecasting future prices.

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AI Experiments · Power BI

I Used AI to Help Build a Sales Dashboard. Here’s What I Had to Fix

I plan to document the prompts, test AI-generated DAX and compare the suggested visuals against validated results.

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AI Experiments · Excel

I Used AI to Build an Automated Expense Tracker and Tested Every Formula

I plan to turn a raw expense file into a reusable tracker, checking AI-generated formulas and automation step by step.

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AI Experiments · SQL

I Asked AI to Analyze a Sales Database. Which SQL Queries Held Up?

I plan to test AI-generated queries against independently checked totals and show the corrections needed.

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SQL & Power BI · DAX

I Built a Dynamic Sales Dashboard Using Just Three Core DAX Measures

I plan to test revenue, profit and margin measures with slicers and show how the report responds to different filters.

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SQL & Power BI · SQL

I Used SQL to Answer 10 Business Questions from a Sales Database

I plan to join sales, product and customer tables, verify the outputs and turn the results into business visuals.

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SQL & Power BI · Data Modeling

My Power BI Dashboard Showed the Wrong Sales Total. Here’s How I Fixed It

I plan to debug a deliberately flawed model, test relationships and reconcile the final measures to source data.

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