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Excel

What is Data Validation in Excel? A Comprehensive Guide to Add, Edit, and Remove Data Validation Rules in Excel

Applying data validation in Excel is simple: Open the 'Data' tab. Go to the 'Data Tools' group. Click on the 'Data Validation' button.

Elena Kosourova

31 mai 2024

SQL

How to Create Comments in SQL

Review three methods to add comments in SQL: single-line comments, multiline comments, and inline comments using the following syntax: --, /*, and */.
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Laiba Siddiqui

31 mai 2024

SQL

A Comprehensive NoSQL Tutorial Using MongoDB

Learn about NoSQL databases - why NoSQL, how they differ from relational databases, the different types, and design your own NoSQL database using MongoDB.
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Arunn Thevapalan

30 mai 2024

Spreadsheets

Correlation Matrix In Excel: A Complete Guide to Creating and Interpreting

Learn the statistical concept of correlation, and follow along in calculating and interpreting correlations for a sample dataset, in a step-by-step tutorial.
Arunn Thevapalan's photo

Arunn Thevapalan

30 mai 2024

Artificial Intelligence

Cohere API Tutorial: Getting Started With Cohere Models

Cohere offers powerful large language models for various language tasks through their user-friendly Playground or API.
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Moez Ali

30 mai 2024

Artificial Intelligence

How to Run Llama 3 Locally With Ollama and GPT4ALL

Run LLaMA 3 locally with GPT4ALL and Ollama, and integrate it into VSCode. Then, build a Q&A retrieval system using Langchain and Chroma DB.
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Abid Ali Awan

21 mars 2025

Python

Implementing the Dijkstra Algorithm in Python: A Step-by-Step Tutorial

Dijkstra's algorithm helps find the shortest route between two points in a network, like finding the quickest path on a map, by checking and updating distances step-by-step.
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Bex Tuychiev

28 mai 2024

SQL

SQL DDL Commands: The Definitive Guide

Learn about SQL DDL commands and how they help define and manage the structure of database objects.
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Deandra Cutajar

28 mai 2024

SQL

Normalization in SQL (1NF - 5NF): A Beginner’s Guide

Database normalization is an important process used to organize and structure relational databases. This process ensures that data is stored in a way that minimizes redundancy, simplifies querying, and improves data integrity.
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Samuel Shaibu

28 mai 2024

Artificial Intelligence

Gemini 1.5 Pro API Tutorial: Getting Started With Google's LLM

To connect to the Gemini 1.5 Pro API, obtain your API key from Google AI for Developers, install the necessary Python libraries, and send requests and receive responses from the Gemini 1.5 Pro model.
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Natasha Al-Khatib

27 mai 2024