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GEDatabases : 11/10 ✅
#coding #programming #developer #tech
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6.0M
AL😁 Interesting fact:
Many modern databases never actually "overwrite" your data when you perform an update. Instead, they use a technique called Multi-Version Concurrency Control (MVCC), where the system keeps the old version of your information and simply writes a brand-new one next to it with a timestamp. This allows multiple people to read and write simultaneously without crashing into each other. However, this creates "ghost data" over time, requiring the database to periodically run a background process called "Vacuuming" to sweep away the obsolete versions and reclaim storage space.
#database #programming
@algobrief
285.9K
ARThe N+1 problem.
This is actually a very common issue. Always be aware / careful about how many requests you’re making to your db. #systemdesign #databases #softwareengineering
@arjay_the_dev
234.4K
SAWhat is a vector database 🤔
A vector database stores data as numerical embeddings (vectors) that represent meaning rather than exact text or values.
It enables similarity search by finding items that are mathematically close to a query vector instead of using exact matches.
In short: vector databases power semantic search, recommendations, and AI retrieval by understanding context and meaning.🫡🤝
#softwareengineering #computerscience
@sayed.developer
6.5M
SHThis is a classic system design interview question — and it’s NOT about servers or databases 🤯
The problem isn’t compute.
It’s distance 🌍
When a user in India opens your website
and your servers are in the US,
every request travels thousands of kilometers ✈️
Images 🖼️
CSS 🎨
JavaScript ⚙️
All crossing oceans 🌊
More distance = more latency ⏳
Adding more backend servers in the US ❌
Optimizing code ❌
Neither fixes this problem.
The correct answer is: use a CDN ✅
A CDN (Content Delivery Network) caches static content
like images, videos, CSS, and JavaScript
on servers distributed across the world 🌐
So instead of an Indian user fetching content from the US,
they get it from a nearby edge location ⚡
Same website.
Same backend.
🚀 Much lower latency.
That’s why CDNs are one of the first answers interviewers expect
when performance varies by geography.
#hld #softwaredevelopment #softwarejobs #systemdesign #cdn
@shadab.tech
278.8K
VOComment DATABASE and I’ll send you the full list.
If databases and APIs feel confusing, it’s usually because people try to learn everything at once instead of understanding how the pieces connect.
The way I’d relearn it is simple:
start with how databases actually store data, practice writing real SQL queries, then build a backend API so it all makes sense in a real project.
In this video I share the exact resources I’d use to learn SQL, databases, HTTP requests, and API development from scratch in about a week.
Whether you’re learning backend development, preparing for software engineering interviews, or just trying to understand how apps talk to databases, these resources are a great place to start.
@volkan.js
1.9M
PRIn the simplest way👇🏻
1️⃣ Cache is temporary
It stores data in RAM, so if the system crashes or restarts, data can be lost.
2️⃣ Database is permanent
Databases store data on disk, so your data stays safe and reliable.
3️⃣ Cache is limited & expensive
RAM is costly and can’t store huge amounts of data like databases can.
4️⃣ Data can become outdated
Cache may have stale data, while databases ensure accuracy and consistency (ACID).
5️⃣ Database = source of truth
Cache only keeps a copy of frequently used data, not the original.
6️⃣ Cache is for speed, not storage
It improves performance by reducing database load, not replacing it.
✅Example :
1)Think of it like a restaurant kitchen.
2)Database = main fridge/storage where all ingredients are stored safely.
3)Cache = small counter fridge where frequently used ingredients are kept.
4)Chef first checks the counter fridge (cache) because it is faster. If the ingredient is not there, they go to the main fridge (database) and bring it.
⭕️So cache improves speed, but the database is needed for permanent storage.
💡 In short:
Cache = fast access
Database = safe storage
Both work together, not against each other 🚀
Follow: @priforyou._ for more❤️
#softwareengineer #interview #backenddeveloper #cache #learning
@priforyou._
1.9M
BLDay 6/365 Save and Follow @blackcask_ for more such content.
.
.
This is a classic system design interview question - and it’s NOT about servers or databases
The problem isn’t compute.
It’s distance
When a user in Singapore opens your website and your servers are in the US, every request travels thousands of kilometers *
Images
CSS
JavaScript
All crossing oceans
More distance = more latency
Adding more backend servers in the US - No
Optimizing code - No
Neither fixes this problem.
The correct answer is:
use a CDN
A CDN (Content Delivery Network) caches static content like images, videos, CSS, and JavaScript on servers distributed across the world
So instead of an Singaporean user fetching content from the
US, they get it from a nearby edge location
#viral #tech #java #code #indiansinsingapore
@blackcask_
334.3K
MR1. Bill Gates consumes 50 books per year while running a $140 billion foundation and multiple companies. When MIT asked how, he revealed a 4-hour protocol that librarians call "textbook destruction": he never reads chronologically. "Books are databases, not novels," he said. "I query them, I don't experience them." His reading retention tested at 97%. Average readers: 9% after two weeks.
2. The method is surgical violence against traditional reading. Hour one: scan every chapter's first sentence to build a mental map. Hour two: read only sections containing data, case studies, or frameworks — skip all stories and fluff. Hour three: handwrite one-page summary in his own words. Hour four: teach the concept out loud to an empty room. "If I can't teach it, I didn't learn it," he told Harvard.
3. Researchers tracked Gates against 2,100 executives over 12 years. Traditional readers averaged 8 books yearly with 9% retention. Gates-method users averaged 43 books with 94% retention and implemented ideas 11x faster. Publishers privately admitted most books contain 30 pages of value buried in 270 pages of filler. Gates just mines the 30.
4. One consultant making $35K switched to this and earned $890K in 16 months: "I stopped reading like a student trying to finish homework. I started extracting like Gates — ruthless, surgical, immediate application. I've weaponized 67 books this year."
5. Try it this weekend. Pick a book. Scan first sentences of all chapters. Read only data-dense sections. Write a one-page summary. Teach it to your wall. Gates proved: reading isn't about finishing — it's about extraction.
➡️ Get the complete ancient wealth playbook (FREE) — 47 habits from history's richest that actually work. Grab it before I delete it. Link in bio.
@mr.sattorix
197.5K
10This 20-year-old just built an AI that could expose corrupt politicians in Brazil by cross referencing their ID numbers with public databases.
Meet Bruno César, who connected over 70 government databases including tax records, electoral data, public contracts, and payroll systems, all linked through one thing: politicians’ ID numbers.
The system maps suspicious connections automatically. For example, if a politician directs public funds to a city and that city later awards contracts to companies owned by the politician’s relatives, the AI flags it instantly.
Here’s the crazy part. He built this on a single personal server using AI tools like Claude and ChatGPT to write the data scripts, and Neo4j to visualize the web of relationships like a crime thriller investigation board.
In an early test run, it reportedly flagged 34 ghost employees on government payrolls and traced more than $9 million in suspicious fund movements.
He is now opening beta access to journalists and anti corruption watchdogs, with plans to make the whole system open source.
To avoid legal issues, he modified the tool so it generates a percentage based risk score instead of directly labeling someone with words like “corruption” or “suspect.”
This is just one developer, seventy databases, and a tool that could completely change how governments are held accountable.
@100xengineers
758.5K
GPComment "Automation" for ebook link.
This self-paced course is based on NVIDIA's Al-Q Research Assistant Blueprint and focuses on how real agents are built for production use.
What youll learn:
deploy NVIDIA reasoning models
build RAG pipelines using vector databases
orchestrate agentic workflows with
human-in-the-loop control
• design Al agents that retrieve, reason, and synthesize data
This goes beyond prompts and demos.
It teaches how modern Al research agents actually work.
If Al agents are part of your 2026 plan, this is a solid place to start.
nvidia #freecourses #tech #students #education
{ai agents, autonomous ai, nvidia ai, ai courses, free ai course, agentic ai, ai workflows, rag pipelines, vector databases, ai research agents, ai automation, ai development, ai engineering, ai tools, generative ai, learning, ai education, ai career, ai 2026, ai
@gptprompts.ai
172.4K
EM🚨 20-Year-Old Developer Builds AI to Detect Government Corruption 🤖🏛️
A young Brazilian developer, Bruno César, has created an AI system that analyzes public records to uncover corruption. The tool cross-references politicians’ CPF identification numbers with multiple government databases to detect suspicious financial activity.
📊 What the AI found:
• 34 ghost employees identified
• Around $9.4 million in suspicious public fund allocations
• Links between officials, companies, contracts, and family members
The system uses advanced AI models to process large datasets and map relationships using a graph database, turning open public data into a powerful investigative tool.
This project shows how AI can help increase transparency and fight corruption by analyzing complex data connections that humans might miss.
👉 Follow @binarykeedaeducation for daily AI, tech & innovation updates 🚀
#BinaryKeedaEducation #AI #ArtificialIntelligence #TechInnovation #DataAnalysis CorruptionDetection TechForGood AIProjects FutureOfTechnology TechNews
@emple.in
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