Data Science Full Course For Beginners
⏰ 24 hours long

Created by IBM ✅

https://www.youtube.com/watch?v=WlLgysXJ0Ec

#datascience
➖➖➖➖➖➖➖➖➖➖➖➖➖➖
👉Join @datascience_bds for more👈

💾🎮 Learn SQL by Playing a Game! 🎮💾

Level up your SQL skills while playing interactive games! 🚀
Solve queries, complete challenges, and master databases—all while having fun. Perfect for beginners

SQL island:
https://sql-island.informatik.uni-kl.de/

SQL Mistery:
https://mystery.knightlab.com/

Paid task offer:

Looking for a web developer to create a simple, professional website for a small electrical installation company. The website should be clean, user-friendly, and responsive.

WordPress allowed as well.

If you are interested send a mail to [email protected] or write me directly to @mldatascientist

Please make sure to add your CV, or at least write basic info about yourself (name, age, location, education etc), your experience, tech stack you are using, and links to websites you already made.

Incomplete messages will not be considered.

Thank you all for applying!

The task offer is now closed ❌

We received an overwhelming number of requests, so processing will take some time. Only one person will be selected for this task, but I will keep all applications for future opportunities.

Seeing such high interest, I will look for more ways to offer paid tasks in the future❗️

YouTube is free education.
Here are best free YT courses for each programming language:

1. Python
- Python Programming Full Course (12 Hours) by freeCodeCamp
https://www.youtube.com/watch?v=rfscVS0vtbw

2. JavaScript
- JavaScript Tutorial for Beginners by Traversy Media
https://www.youtube.com/watch?v=hdI2bqOjy3c

3. Java
- Java Full Course – Learn Java in 8 Hours by Programming with Mosh
https://www.youtube.com/watch?v=UmnCZ7-9yDY

4. C++
- C++ Programming Tutorial for Beginners by freeCodeCamp
https://www.youtube.com/watch?v=vLnPwxZdW4Y

5. C#
- C# Tutorial – Full Course for Beginners by Bro Code
https://www.youtube.com/watch?v=GhQdlIFylQ8

6. HTML and CSS
- HTML Full Course – Build a Website Tutorial by freeCodeCamp
https://www.youtube.com/watch?v=pQN-pnXPaVg

- CSS Tutorial – Full Course for Beginners by freeCodeCamp
https://www.youtube.com/watch?v=ieTHC78giGQ

7. SQL
- SQL Tutorial – Full Database Course for Beginners by freeCodeCamp
https://www.youtube.com/watch?v=HXV3zeQKqGY

8. Swift
- Swift Programming Tutorial for Beginners by CodeWithChris
https://www.youtube.com/watch?v=comQ1-x2a1Q

9. Kotlin
- Kotlin Full Course – Learn Kotlin in 4 Hours by freeCodeCamp
https://www.youtube.com/watch?v=F9UC9DY-vIU

10. Go (Golang)
- Go Programming Language Tutorial – Full Course by freeCodeCamp
https://www.youtube.com/watch?v=YS4e4q9oBaU

EDIT: I FORGOT C language 🤯🤯🤯
Luckily our follower reminded me

11.1 C Programming Tutorial for Beginners
This comprehensive course provides a full introduction to the core concepts of the C programming language.
https://www.youtube.com/watch?v=KJgsSFOSQv0

11.2 C Programming All-in-One Tutorial Series (10 HOURS!)
An extensive 10-hour tutorial series covering various aspects of C programming, suitable for beginners and intermediate learners.
https://www.youtube.com/watch?v=Bz4MxDeEM6k

11.3 C Programming Tutorial | Learn C programming | C language
This tutorial offers a detailed overview of C programming, focusing on fundamental concepts and practical examples.
https://www.youtube.com/watch?v=-CpG3oATGIs

These courses are well-regarded and provide a solid foundation in their respective programming languages.

I forgot to add C course up here ☝️
Our subscriber rightfully corrected me, thanks 🙏

I edited previous post and as a "punishment," I’ll also prepare a massive post filled with books, notes, PDFs, and, of course, courses from various sources on the C programming language!

API Protocols

Guys, The AI landscape is evolving at a mind-blowing pace, with groundbreaking models emerging daily.

Since DeepSeek's launch, the pace has accelerated even more.
Just in last few days this happened:
🔹 OpenAI released ChatGPT 4.5
🔹Musk's xAI released Grok 3 (allegedly the most powerful AI model on the planet Earth),
🔹Microsoft released Muse to generate gameplay by understanding 3D environments and physics,
🔹 Alibaba has released Qwen 2.5-Max, an AI model it claims surpasses DeepSeek V3 in performance.
🔹 Anthropic's releasd Claude 3.7 Sonnet (Claude is best model for code generation)

I'll cover these developments in my AI Revolution and Tech News channels—join us to explore the incredible, and most importantly possibilities AI offers.

Note: The future of these channels depends on your engagement and activity. I’ll do my best to keep you informed with all the important updates, but if there isn’t enough interest, we may have to close them as they take a lot of time to maintain. Thanks for understanding.

AI Agents Course
by Hugging Face 🤗


This free course will take you on a journey, from beginner to expert, in understanding, using and building AI agents.

https://huggingface.co/learn/agents-course/unit0/introduction

🚀 Let's Learn SQL Together!

Starting tomorrow, we’re kicking off a brand-new SQL/MySQL learning series! 🎉

📅 Every Monday we’ll share a new lesson, guiding you step by step—from the fundamentals to more advanced concepts. But first, tomorrow, we’ll drop a roadmap so you know exactly what to expect!

I feel like we’ve all been a bit passive here, and this is our chance to do something proactive—to learn, grow, and build real skills together.

Your participation is key! If this goes well, we’ll expand into other topics and keep adding valuable content for you.

🔥 Who's in? Drop a 🔥 if you're excited! 🔥

Much love from @bigdataspecialist

#SQL #MySQL #LearnTogether #NewSeries

SQL/MySQL learning series: Day 1️⃣

📌 SQL Roadmap: From Zero to Hero 🚀

👋 Welcome! This roadmap will guide you step by step through SQL, from basics to expert level.

---

🟢 Stage 1: Introduction to SQL
🔹 What is SQL? – Structured Query Language for databases.
🔹 SQL vs MySQL vs PostgreSQL vs Oracle vs SQLite – Understanding the differences.
🔹 Setting Up SQL – Install MySQL/PostgreSQL & set up Workbench/DBeaver.

---

🟢 Stage 2: Basic SQL Queries (CRUD Operations)
🔹 Database & Table Basics – Rows, columns, primary keys.
🔹 CREATE TABLE – Defining structure.
🔹 INSERT INTO – Adding data.
🔹 SELECT – Retrieving data.
🔹 UPDATE / DELETE – Modifying & removing data.
🔹 Filtering with `WHERE` – BETWEEN, LIKE, IS NULL.
🔹 Sorting & Limiting – ORDER BY, LIMIT, OFFSET.

---

🟢 Stage 3: Intermediate SQL (Joins, Aggregation, Subqueries)
🔹 Joins (Combining Tables)
✅ INNER JOIN – Matching rows in both tables.
✅ LEFT JOIN / RIGHT JOIN – Keeping all from one table.
✅ FULL OUTER JOIN – All records from both.
✅ CROSS JOIN – Cartesian product.
✅ SELF JOIN – Joining a table to itself.

🔹 Aggregations & Grouping
✅ COUNT(), SUM(), AVG(), MIN(), MAX().
✅ GROUP BY – Grouping results.
✅ HAVING – Filtering grouped data.

🔹 Subqueries (Nesting Queries)
✅ IN, ANY, ALL, correlated subqueries.

🔹 Common Table Expressions (CTEs) & Views
✅ WITH – Writing reusable queries.
✅ Views – Saving complex queries as virtual tables.

---

🟢 Stage 4: Advanced SQL (Optimization, Transactions, Indexing)
🔹 Performance Optimization
✅ Indexes (CREATE INDEX) for speed.
✅ Using EXPLAIN to analyze queries.

🔹 Transactions & ACID Properties
✅ BEGIN TRANSACTION, COMMIT, ROLLBACK.

🔹 Window Functions (Advanced Analytics)
✅ ROW_NUMBER(), RANK(), DENSE_RANK().
✅ LAG(), LEAD() for accessing previous/next row values.

🔹 Recursive Queries (Hierarchical Data)
✅ Recursive WITH queries.
✅ Parent-child relationships.

---

🟢 Stage 5: Database Design & Normalization
🔹 Keys: Primary Key, Foreign Key, Composite Key.
🔹 Normalization:
✅ 1NF – No duplicate rows, atomic columns.
✅ 2NF – No partial dependencies.
✅ 3NF – No transitive dependencies.

---

🟢 Stage 6: Advanced Topics (Big Data, NoSQL, SQL in Practice)
🔹 SQL & JSON – Storing/querying JSON in SQL.
🔹 SQL in Data Engineering – Handling large datasets.
🔹 SQL vs NoSQL – When to use which?
🔹 SQL in Real-world Applications – Web apps, BI, ETL.

---

🟢 Stage 7: Mastery & Certifications
🔹 Real-world SQL Projects
✅ Building a Customer Database System.
✅ Creating a Sales Dashboard with SQL.
✅ Automating Data Processing with SQL.

🔹 SQL Certifications
✅ Microsoft SQL Server.
✅ Oracle SQL.
✅ Google Cloud SQL.

---

💡 How to Learn Effectively?
✅ Follow steps in order – Don’t skip fundamentals!
✅ Practice daily – Use LeetCode, Kaggle, open datasets.
✅ Build real-world mini-projects.
✅ Optimize queries – Focus on performance.

📌 What’s Next?
Each Monday there will be another lesson explaining each step of this roadmap 🚀

Java 24 Launch (Live from JavaOne 2025)

Today is Java 24 release.
Stream has just started, but I feel like quality can be a little bit better honestly.

You can watch it live here:
https://www.youtube.com/watch?v=mk_2MIWxLI0

~~~ TODAY'S PROGRAM SCHEDULE ~~~

15:00 UTC: Java 24 Overview with Mikael Vidstedt
15:30 UTC: JavaOne Opening Keynote "Our World, Moved by Java"
-- Cutting Edge Demos
-- Garbage Collection Performance Insights
-- News About Java in Education
-- ...and more
17:15 UTC: Java 24 Deep Dive
-- AOT Caching with Dan Heidinga
-- Stream Gatherers with Viktor Klang

SQL/MySQL learning series: Day 2️⃣

👋 Welcome to day 2 of our SQL series

—————————————————

📌 Lesson 1: What is SQL? 🚀

👋 Welcome! Today, we’re starting from the very basics:

🟢 What is SQL?
SQL (Structured Query Language) is a language designed to manage and manipulate databases. It's used to:
✅ Store data 📂
✅ Retrieve data 🔍
✅ Update data ✏️
✅ Delete data ❌

💡 Think of SQL as a way to talk to databases!

—————————————————

🟢 Why is SQL important?
SQL is everywhere! It's used in:
✅ Websites & apps (Facebook, Instagram, YouTube) 🌍
✅ Business intelligence & analytics 📊
✅ Financial systems 💰
✅ Data engineering & big data 📡

🚀 If you want to work with data, you need SQL!

—————————————————

🟢 How does SQL work?

Databases store data in tables, similar to spreadsheets.

Here’s an example table named customers:

+----+---------+----------+
| id | name    | city     |
+----+---------+----------+
|  1 | Alice   | New York |
|  2 | Bob     | London   |
|  3 | Charlie | Berlin   |
+----+---------+----------+

🔹 Selecting All Data
If we want to get everything from this table, we use:

SELECT * FROM customers;

This means:
💬 “Give me all columns from the customers table.”

—————————————————

🟢 Selecting Specific Columns

Sometimes, we don’t need all the data, just specific columns.

🔹 Example: If we only need the names of customers:

SELECT name FROM customers;

📝 Result:

+---------+
| name    |
+---------+
| Alice   |
| Bob     |
| Charlie |
+---------+

🔹 Example: If we want names of customers from London:

SELECT name FROM customers WHERE city = 'London';

📝 Result:

+------+
| name |
+------+
| Bob  |
+------+

💡 Tip: SQL is case-insensitive, so select, SELECT, and SeLeCt all work the same!

—————————————————

🟢 Key Points to Remember
✅ SQL is a language for managing databases.
✅ It allows you to store, retrieve, update, and delete data.
✅ SQL is used in almost every industry that works with data.
✅ It follows a simple, structured format that makes querying easy.

📌 Next Lesson: SQL vs MySQL vs PostgreSQL vs Oracle vs SQLite – What's the difference? Stay tuned! 🚀

🚨 Attention: A Critical Next.js vulnerability

What Happened?

A massive vulnerability (CVE-2025-29927) was just found in Next.js, a popular framework for building web apps with React. This flaw, rated 9.1/10 for severity, lets attackers slip past security checks using a simple trick—a special header. It affects self-hosted Next.js apps (versions 11.1.4 to 15.2.2) that use middleware to protect pages, like admin dashboards. If unpatched, hackers could access restricted areas—yikes!

How Big Is It?

Pretty darn big! Millions of developers use Next.js, and this bug leaves tons of apps exposed. The good news? It’s fixed in version 15.2.3 and up. Please update to newest version to stay safe!