ProJenius

Welcome to Day 14 of the 15 Days Database Challenge by ProJenius! 🚀
Today, we dive into a real-world example — how Instagram stores, manages, and retrieves your data.

From user profiles to posts, likes, comments, and messages, discover how massive platforms use databases, caching, and distributed systems to keep everything fast and seamless.
A perfect blend of theory and real-life application! 📱⚡📊

15 hours ago | [YT] | 8

ProJenius

Welcome to Day 13 of the 15 Days Database Challenge by ProJenius! 🚀

Today, we explore Cloud Databases — where data isn’t tied to one machine but lives everywhere, accessible anytime.
Learn how cloud platforms offer scalability, global access, automatic backups, and high performance for modern applications.
This session shows why the future of data is in the cloud. ☁⚡💻

1 day ago | [YT] | 7

ProJenius

Welcome to Day 12 of the 15 Days Database Challenge by ProJenius! 🚀
Today, we explore one of the most crucial topics in data management — Backup and Recovery.

Learn why every database needs a safety net, how backups protect data from loss, and how recovery systems bring everything back when things go wrong.
A must-know skill for building reliable and resilient applications! 🔐💾

2 days ago | [YT] | 8

ProJenius

Day 11 | Transactions: Keeping Data Honest | 15 Days Database Challenge by ProJenius 💻🛡️

Welcome to Day 11 of the 15 Days Database Challenge by ProJenius! 🚀

Today, we dive into Transactions — the backbone of reliable databases and trustworthy applications. 🔒📊
Whether you're handling payments, bookings, or user actions, transactions make sure your data stays accurate, consistent, and safe, no matter what happens.

Learn how transactions work, why they're essential, and how they help you build systems that never break under pressure. 💪⚙️
If you're serious about backend engineering and data integrity, this is a concept you can’t skip!

📍 Stay connected with @Projenius.in for more tech challenges, learning series, and smart project ideas!

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3 days ago | [YT] | 12

ProJenius

Day 9 | SQL vs NoSQL: The Big Database Split | 15 Days Database Challenge by ProJenius 💻🚀

Welcome to Day 9 of the 15 Days Database Challenge by ProJenius! 🚀
Today, we explore the major divide in the database world — SQL vs NoSQL.
Understand how SQL handles structured data with tables, while NoSQL powers flexible, high-speed systems used in modern apps.
By the end, you’ll know which database fits which problem — and why both matter in today’s tech world. ⚡

5 days ago | [YT] | 12

ProJenius

Welcome to Day 8 of the 15 Days Database Challenge by ProJenius! 🚀
Today, we break down what really happens when you click “Save.”From sending a request → running SQL → storing data → confirming success,you'll understand the entire behind-the-scenes journey of how your information gets safely written into the database. 💾

6 days ago | [YT] | 13

ProJenius

Day 7 | Relationships: How Data Connects Together | 15 Days Database Challenge by ProJenius 💻🚀

Welcome to Day 7 of the 15 Days Database Challenge by ProJenius! 🚀
Today, we uncover how relationships link data across multiple tables — making databases smarter, structured, and more meaningful.
From one-to-one to many-to-many, understand how data interacts, connects, and forms the backbone of real-world applications. 🔗📊

1 week ago | [YT] | 8

ProJenius

Welcome to Day 6 of the 15 Days Database Challenge by Projenius! 🚀Today, we explore Primary Keys — the unique identity of every record in a database.Understand why they’re essential, how they prevent duplicates, and how they keep your data organized, reliable, and easy to access.

1 week ago | [YT] | 10

ProJenius

Day 5 | The SQL Language: Talking to Databases | 15 Days Database Challenge by ProJenius 💻🚀

Welcome to Day 5 of the 15 Days Database Challenge by ProJenius! 🚀
Today, we’ll dive deeper into SQL — the powerful language that helps us talk to databases, extract meaningful information, and control how data behaves.
From writing simple queries to understanding how data flows, this session strengthens your foundation step by step! ⚡💻

1 week ago | [YT] | 12

ProJenius

Happy Children’s Day from ProJenius 💚✨

Let’s inspire every child to dream big, explore fearlessly, and shape a brighter future with creativity and knowledge.🌈📚

1 week ago | [YT] | 9