Aliens Wiki
Cinematic Knowledge Experience
0%
Aliens Wiki
Now Playing
Aliens Wiki · HIEN
⌨️ Keyboard Shortcuts
→Next slide ←Previous slide SpacePlay / Pause MNarration on/off FFullscreen ?Show/hide this
Press any key to close
Wiki Article · Cinematic

Locking

Locking databases aur concurrent systems me ek fundamental mechanism hai jo ensure karta hai ke ek…

Overview
🌟

Locking — Quick Facts

📌

Property: Detail

🎯

Concept Name: Locking (Database Locking /…

⚡

Category: Database Management, Concurrency…

🔑

Purpose: Data consistency ensure karna…

Topic 1
📥 📥 🧠 🔬 💡 🎯

Infobox

📚 | Property | Detail |…
Topic 2
✨

Taaruf aur Basic Concept

💡 Locking ka core principle mutual exclusion hai — ek resource par ek waqt me sirf limited…
Topic 3
🔒

Locking ki Zaroorat

🎯 Bina locking ke concurrent transactions me yeh classic problems aati hain: Lost Update:…
Topic 4
⭐

Lock Types

⭐ Different lock types aur unka behavior: | Lock Type | Also Called | Who Can Co-exist |…
Topic 5
✨

Lock Granularity

🔑 Lock kis level par lagta hai — yeh granularity kehlata hai: | Granularity Level | Scope |…
Topic 6
✨ 📊 🔬

Locking Flow Diagram

✨ Transaction ka lock request se lekar release tak ka flow, deadlock scenario ke saath:…
Topic 7
🔒

Deadlock

💡

Transaction A ne Row 1 par…

🔑

Transaction B ne Row 2 par…

⚡

Dono ek doosre ka wait kar rahe…

🎯

Victim Selection: Database ek…

Topic 8
✨

Optimistic vs Pessimistic Locking

💡

Pehle lock lo, phir kaam karo,…

🔑

Assumption: conflicts honge…

⚡

Database-level locks use hote hain…

🎯

High-contention scenarios me…

Topic 9
📚

Locking in Popular Databases

💡

Default: Row-level locking

🔑

Shared aur Exclusive locks support…

⚡

SELECT ... FOR UPDATE se explicit…

🎯

SELECT ... LOCK IN SHARE MODE se…

Topic 10
💡 📊 🔬

Common Pitfalls

💡 Locking se related common galtiyan: 1. Long-Held Locks: Transaction start karo, lock lo,…
Topic 11
✨

Benefits aur Challenges

🎯 | Benefits | Challenges |…
Topic 12
⭐

Glossary

⭐ | Term | Meaning |…
Diagram
📥 ⚙️ 🔬 💡

Visual Flow

📊 Diagram visualization — details in narration
Related Topics

See Also

📖

Lock (computer science).md)

🔗

Transaction

💡

Deadlock

📚

Concurrency Control

🔑

ACID

🌐

Database

Quick Quiz
🧠 QUIZ TIME

Quiz — Question 1

Locking ka sabse sahi definition kya hai?

Quick Quiz
🧠 QUIZ TIME

Quiz — Question 2

Locking ka 'Concept Name' kya hai?

Complete! 🎉
COMPLETE

Locking Complete!

Aliens Wiki · HIEN · Cinematic Knowledge

✅

Locking Complete

➡️

Lock (computer science).md)

1/19
0:00
REC 00:00ESC=Cancel
Aliens School
3
Recording shuru hone wali hai...
✅
Recording Complete
Video process ho rahi hai...
Live Class
Slide 1 / 7
Timer
00:00
📝 Speaker Notes
—
⏭️ Up Next
—
—
🗂️ All Slides