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Data Science Tutorials

Develop your data science skills with tutorials in our blog. We cover everything from intricate data visualizations in Tableau to version control features in Git.
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SQL

SQL Stored Procedure: Automate and Optimize Queries

Learn the basics of SQL stored procedures and how to implement them in different databases, including MySQL and SQL Server.
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Allan Ouko

January 8, 2025

Artificial Intelligence

ChatGPT Desktop: A Guide With VS Code and Terminal Examples

Learn how to optimize your coding workflow using the ChatGPT desktop app, with a focus on its integration with VS Code, the terminal, and Xcode.
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François Aubry

January 7, 2025

Artificial Intelligence

OpenAI's Preference Fine-Tuning: A Guide With Examples

Learn how to align large language models with user preferences using OpenAI's preference fine-tuning and direct preference optimization.
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Hesam Sheikh Hassani

January 7, 2025

Data Engineering

What is Second Normal Form (2NF)?

Learn how second normal form (2NF) can improve your database design by eliminating partial dependencies.
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Marie Fayard

January 6, 2025

Excel

How to Remove Spaces in Excel: 5 Good Methods

Remove unnecessary spaces, including leading, trailing, and extra spaces, to keep your data clear. This guide covers TRIM(), SUBSTITUTE(), and CLEAN() functions, plus practical tips to ensure spreadsheets remain accurate and easy to work with.
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Laiba Siddiqui

January 5, 2025

Python

Python Reverse List: How to Reorder Your Data

Choose the right Python list reversal technique between reverse(), slicing, reversed(), and list comprehensions. Use these methods to tackle tasks like data sorting and sequence alignment.
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Oluseye Jeremiah

January 4, 2025

Excel

Nested IF() in Excel: A Quick Solution for Many Conditions

Discover how to handle complex criteria in a single formula. Elevate your reporting in a way that saves time and effort and reduces mistakes.
Laiba Siddiqui's photo

Laiba Siddiqui

January 3, 2025

Data Analysis

The Demand Curve: How to Understand the Relationship Between Price and Sales

Learn how to use the demand curve to reveal a relationship between price and quantity sold, and use this knowledge to guide smarter decisions in competitive markets. Explore methods to find the optimal price to maximize overall revenue.
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Josef Waples

January 3, 2025

Excel

Excel Slicer: A Step-by-Step Guide to Advanced Filtering

Discover how to enhance your data analysis with the Excel slicer. Learn advanced techniques to build dynamic dashboards and streamline your workflow.
Laiba Siddiqui's photo

Laiba Siddiqui

January 3, 2025