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OSCAR MAINJE

Data Scientist & AI professional with background in Electrical Engineering. Skilled in analytical thinking, problem solving and data-driven technologies.

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I Built a Digital Notebook for a Kiosk Owner Who's Tired of Paper Records — Here is What I Learned
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I Built a Digital Notebook for a Kiosk Owner Who's Tired of Paper Records — Here is What I Learned

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3 min read
From a Messy Spreadsheet to Business Insights: Analyzing a Hotel's Booking Data
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From a Messy Spreadsheet to Business Insights: Analyzing a Hotel's Booking Data

#analytics #learning #visualization #powerbi
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7 min read
Building and Querying a Database: A Practical SQL Guide
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Building and Querying a Database: A Practical SQL Guide

#sql #database #postgres #learning
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5 min read
The Ultimate Step-by-Step Guide: Connecting Power BI to Cloud-Based & Local PostgreSQL
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The Ultimate Step-by-Step Guide: Connecting Power BI to Cloud-Based & Local PostgreSQL

#postgres #database #analytics #learning
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5 min read
Power BI Data Modelling Demystified: Models, Schemas, Relationships, and Joins
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Power BI Data Modelling Demystified: Models, Schemas, Relationships, and Joins

#analytics #beginners #datascience #learning
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12 min read
How Excel is used in Real-World Data Analysis
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How Excel is used in Real-World Data Analysis

#beginners #data #analytics #learning
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3 min read
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