# @dataengineeringtamil on Instagram

- **Type:** Image
- **Original URL:** https://www.instagram.com/p/DVbjCYECNbX
- **Gondola URL:** https://gondola.cc/posts/63365832-dataengineeringtamil-instagram
- **Thumbnail:** https://img.gondola.cc/tr:w-,h-,fo-auto/postThumbnails/faaa6d3b52.jpg
- **Posted:** 2026-03-03T17:19:42.000+00:00
- **Account Owner:** Data Engineering Tamil (@dataengineeringtamil) — https://gondola.cc/dataengineeringtamil

## Caption

RDBMS vs NoSQL — Idhu fight illa, mindset difference.

Ellarum kekra question:
“Bro which one is best?”

Correct question illa.

Correct question: “En use case ku edhu correct?”

🔹 RDBMS (MySQL, PostgreSQL, Oracle)

Proper table structure

Fixed schema

Strong consistency (ACID)

Joins super powerful

Banking, finance, ERP maari strict systems ku perfect

Un data clean-a relational-a irundha,
transaction miss aaga koodadhu na → RDBMS king 👑

🔹 NoSQL (MongoDB, Cassandra, DynamoDB)

Flexible schema

Horizontal scaling easy

Huge traffic handle pannum

Distributed systems friendly

Social media, logs, IoT, real-time apps ku super

Un data daily change aagudhu,
crores of users irukaanga,
availability mukkiyam na → NoSQL mass 🔥

Real truth enna na:

👉 RDBMS consistency first.
👉 NoSQL scalability first.

Onnu strict school principal maari.
Innonnu cool startup founder maari.

But real-world la smart engineers enna panraanga?

Payment data → SQL
User activity logs → NoSQL
Analytics → Data warehouse

Idhu dhaan practical architecture.

So next time “Which is best?” nu kekkaadha.

“En system ku edhu correct?” nu yosichu paaru.

#DataEngineeringtamil  #RDBMS #NoSQL #TanglishTech #SystemDesign SQL BigData

## Stats

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- **Likes:** 352
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## Tags

nosql, rdbms, systemdesign, tanglishtech, dataengineeringtamil

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