PostgreSQL Bangla Tutorial | Database Internal Architecture Explained in Bangla

In this Bangla Tutorial of PostgreSQL, Sumit Saha, a Bangladeshi technology entrepreneur, software engineer, and programming educator, discusses the architecture of PostgreSQL in-depth and at an engineering level. 🎉 Special Offer from Hostinger: 👉 Visit Hostinger to buy hosting: http://hostinger.com/lws10 🎁 Use coupon code: LWS10 to get 10% extra discount What actually happens after a simple SQL Query enters the database? Does PostgreSQL just save data, or does a bigger engine work inside it? We usually understand databases as Table, Row, Column, and SELECT/INSERT. But as a production-grade database engine, PostgreSQL's job is not just to store data, but to keep the data safe and read fast. Timestamps (Chapters) 00:00 Introduction: The PostgreSQL Engine 02:15 Core Architecture & Data Constraints 03:32 Query Lifecycle: Parser, Planner & Executor 08:53 Indexes & Query Performance 11:18 Transactions & ACID Guarantees 13:00 MVCC: Multi-Version Concurrency Control 18:49 WAL: Crash Recovery & Durability 21:52 Vacuuming & Table Maintenance 24:35 Why Database Locks Still Matter 25:30 Production Realities: Replication & Backups 27:08 Conclusion: The Engineer’s Mindset If you have any questions, you can comment in the comment section. We also have a Facebook Group. You can ask your questions there too. All the necessary links are given below - 👍 Sumit Saha official website - https://www.sumitsaha.me 👍 Support our English YouTube channel - https://youtube.com/@logicBaseLabs?su... 👍 Facebook Group -   / learnwithsumit   👍 Like our Facebook Page -   / letslearnwithsumit   👍 Follow our GitHub Profile - https://github.com/learnwithsumit 👍 Follow us at Instagram -   / learnwithsumit   👍 Follow me at -   / sumit.analyzen   👍 Learn with Sumit Official VS Code Theme - https://lwsbd.link/vst #learnwithsumit