Wiki Article · Cinematic

Relational Database

Relational database ek aisa database hai jisme data ko structured tables (rows aur columns) me…

Overview

Relational Database — Quick Facts

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Property: Detail

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Topic: Relational Database

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Type: Database / Data Platform / Backend…

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Definition: Database that stores data in…

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Infobox

📊 | Property | Detail | |---|---| | Topic | Relational Database | | Type | Database / Data…

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Core Concepts

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Data ka primary storage unit —…

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Har table ek entity represent…

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Table ka schema define karta hai:…

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Table me ek single entry — ek…

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Relationships

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Ek row doosri table ki exactly ek…

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Example: User table ↔ User_Profile…

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Rare in practice — aksar same…

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Ek row doosri table ki bahut saari…

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SQL — The Language

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Structured Query Language —…

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Declarative: Tum batao "kya…

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Almost har RDBMS SQL support karta…

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DDL (Data Definition Language):…

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ACID Properties

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Database me data reliable aur…

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Banking example: Rahul ne Priya ko…

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ACID = reliability guarantee —…

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Transaction ka saara kaam complete…

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Normalization

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Data redundancy reduce karna aur…

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Goal: ek fact ek jagah store ho —…

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Edgar Codd ne normalization ke…

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1NF (First Normal Form): Har cell…

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Popular RDBMS

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Relational vs NoSQL

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Relational: Structured data,…

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NoSQL: Unstructured/flexible data…

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Many modern systems: Both —…

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Indexing and Performance

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Phone book analogy: Phone book me…

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Index = separate data structure jo…

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B-Tree Index: Default aur most…

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Hash Index: Equality queries ke…

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Real-World Applications

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Core banking systems relational…

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ACID properties = banking ki…

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Audit trail, regulatory…

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Products, categories, users,…

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Best Practices

🗄️ 1. Proper normalization — At least 3NF for transactional databases — redundancy reduce…

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Glossary

📈 | # | Term | Meaning | |---|---|---| | 1 | Relational Database | Database jo data ko…

Comparison

Relational vs NoSQL

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1: Data Model

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2: Schema

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3: Consistency

Diagram

Visual Flow

📊 Diagram visualization — details in narration

Quiz — Question 1

Relational Database ka sabse sahi definition kya hai?

Quick Quiz

Quiz — Question 2

Relational Database ka 'Topic' kya hai?

Complete! 🎉

Relational Database Complete!

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