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Wiki Article · Cinematic

Aggregation

Aggregation ka simple meaning hai: bahut saari cheezon/rows/events ko combine karke ek short…

Overview
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Aggregation — Quick Facts

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Field: Value

🎯

Type: Database / query-processing /…

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Primary use: Summarization (metrics, reports,…

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Typical input: Raw rows/events (transactions,…

Topic 1
📥 ⚙️ 🔬 💡

Overview

💡

data ko group karte ho (optional)

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phir har group ka summary nikalte…

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“Har city me kitne orders?” (group…

🎯

“Total revenue kya hai?” (no…

Topic 2
💡 📊 🔬

Why aggregation matters

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Decision-making: Leadership ko raw…

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Monitoring: Systems me…

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Cost control: Raw events…

🎯

Communication: Dashboard + KPI…

Topic 3
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How aggregation works (beginner)

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Grouping key (dimension): jis…

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Measure (metric field): jis par…

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“Kis cheez ke hisaab se split?” =…

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“Kis cheez ka total/average…

Topic 4
⭐

Common types of aggregation

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total orders

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average latency

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per product total sales

🎯

per day active users

Topic 5
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Common aggregation operations (conceptual)

🔑 | Operation | Meaning (simple) | Typical use | Common pitfall | |---|---|---|---| | Count…
Topic 6
✨ 📊 🔬

Practical examples (real life)

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“Per country revenue” (group =…

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“Refund rate per product” (group =…

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“Per minute error count” (group =…

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“Top 10 slow endpoints” (group =…

Topic 7
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Performance considerations

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data bahut bada ho

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grouping keys high-cardinality ho…

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memory limited ho

🎯

Agar data partitioned hai (e.g.,…

Topic 8
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Security & privacy considerations

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Small groups: agar kisi group me…

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Sensitive attributes:…

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Minimum group size threshold…

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Access control: kaun kis dimension…

Topic 9
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Common mistakes

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Double counting: joins ya…

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Wrong grouping key: “city” vs…

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Null handling ignore: null values…

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Mixing timezones: daily…

Topic 10
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Aggregation vs related concepts

💡 | Concept | What it does | Output shape | Relation to aggregation | |---|---|---|---| |…
Comparison
✨

Aggregation vs related concepts

⚖️

Filtering: rows reduce karta

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Join: tables combine karta

⚖️

Distinct / dedupe: duplicates remove

Diagram
📥 ⚙️ 🔬 💡

Visual Flow

📊 Diagram visualization — details in narration
Related Topics

See Also

📖

ACID

🔗

Analytics

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Data warehouse

📚

ETL

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Index

🌐

Logging

Quick Quiz
🧠 QUIZ TIME

Quiz — Question 1

Aggregation ka sabse sahi definition kya hai?

Quick Quiz
🧠 QUIZ TIME

Quiz — Question 2

Aggregation ka 'Type' kya hai?

Complete! 🎉
COMPLETE

Aggregation Complete!

Aliens Wiki · HIEN · Cinematic Knowledge

✅

Aggregation Complete

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