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data analytics

My Data Cleaning Experience: Escaping the Memory Limit Trap

A data analyst's honest experience switching to modern DataFrame libraries. Learn how lazy execution and optimized queries solve massive memory bottlenecks.

data analytics

AI-Assisted Data Analysis Workflow: My Honest Experience and Practical Guide

A 5-year data analyst's honest review of using AI for data analytics. Learn how to optimize your workflow, automate cleaning, and avoid common AI pitfalls.

data analytics

Learning R for Data Science: My Honest Review After Completing the A-Z Curriculum

A data analyst's honest review of learning R for data science. Discover practical tips on transitioning from spreadsheets to programming with real-world examples.

data analytics

ETL Testing and Data Warehouse Fundamentals: A Data Analyst's Honest Review

A data analyst's honest review of ETL testing fundamentals. Learn practical SQL unit testing, dimensional modeling, and how to catch bad data early.

data analytics

My Honest Experience Using AI for Data Analytics and Coding

A data analyst shares real experiences using AI for data analytics, SQL optimization, and Python automation. Learn what works and where AI fails.

data analytics

Applied Statistics for Data Science: My Honest Review and Practical Guide

A 5-year data analyst reviews the Probability and Statistics for Business and Data Science course. Learn how to apply SQL, A/B testing, and regression to real data.

data analytics

Building Your First ETL Pipeline: My Honest Take on SSIS for Data Analysts

A data analyst's honest guide to building automated ETL pipelines using SSIS. Learn how to transition from manual Excel tasks to automated data workflows.

data analytics

Cracking the Tableau Certifications: My Honest Experience and Prep Strategy

A 5-year data analyst reviews Tableau certification prep. Discover the pros, cons, and real-world skills needed for the Desktop Specialist and Analyst exams.

data analytics

Chatting With Your Database: My Honest Take on No-Code SQL Automation

A data analyst's honest review of using natural language to SQL (NL2SQL) tools. Learn how to automate ad-hoc reporting and build a semantic layer safely.

Excel

AI-Powered Data Analysis in Excel: My Journey Beyond Basic Formulas

Learn how to integrate OpenAI API, Python, and GPT into Excel for advanced data analytics. Michael Park shares tips on automation and data cleaning.

data analytics

Talking to Your Data: My Honest Take on Generative AI for Analytics

Data analyst Michael Park reviews PandasAI for Generative AI projects. Learn how Natural Language Query changes Python data visualization and EDA.

data analytics

AI-Driven Data Analysis: A Senior Analyst’s Guide to Faster Insights

Learn how to use AI for SQL, Python, and data cleaning. Michael Park shares 5 years of analyst experience using Claude 3.5 Sonnet for faster insights.