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๐Ÿ“˜ MongoDB โ€” Time Series Collections

IoT, metrics, logs โ€” time-based data ko efficiently store karo! โฑ๏ธ

Overview
๐ŸŒŸ

๐Ÿ“˜ MongoDB โ€” Time Series Collections โ€” Quick Facts

๐Ÿ“Œ

"minutes": "hours"

Topic 1
โœจ

๐Ÿ“Œ 1. Time Series Kya Hai?

๐Ÿ“š ` Time Series Data = data jo time ke saath record hota hai Examples: โ€ข IoT sensorโ€ฆ
Topic 2
๐Ÿ’ก ๐Ÿ“Š ๐Ÿ”ฌ

๐Ÿ“Œ 2. Create Time Series Collection

๐Ÿ’ก `javascript // โ•โ•โ• MongoDB 5.0+ feature โ•โ•โ• db.createCollection("sensor_data", {โ€ฆ
Topic 3
๐Ÿ”’

๐Ÿ“Œ 3. Insert Data

๐ŸŽฏ `javascript // โ•โ•โ• Single insert โ•โ•โ• db.sensor_data.insertOne({ timestamp: new Date(),โ€ฆ
Topic 4
โญ

๐Ÿ“Œ 4. Query Time Series

โญ `javascript // โ•โ•โ• Basic time range query โ•โ•โ• db.sensor_data.find({ timestamp: { $gte:โ€ฆ
Topic 5
๐Ÿ“ฅ ๐Ÿ“ฅ ๐Ÿง  ๐Ÿ”ฌ ๐Ÿ’ก ๐ŸŽฏ

๐Ÿ“Œ 5. Aggregation on Time Series

๐Ÿ”‘ `javascript // โ•โ•โ• Hourly average โ•โ•โ• db.sensor_data.aggregate([ { $match: {โ€ฆ
Topic 6
โœจ ๐Ÿ“Š ๐Ÿ”ฌ

๐Ÿ“Œ 6. Gap Filling & Densify

โœจ `javascript // โ•โ•โ• $densify โ€” Fill missing time intervals โ•โ•โ• // MongoDB 5.1+ // Problem:โ€ฆ
Topic 7
๐Ÿ”’

๐Ÿ“Œ 7. Auto-Deletion (TTL)

๐ŸŒŸ `javascript // โ•โ•โ• expireAfterSeconds โ€” auto cleanup โ•โ•โ• // Already set during creation:โ€ฆ
Topic 8
๐Ÿš€

๐Ÿ“Œ 8. Secondary Indexes

๐Ÿš€ `javascript // โ•โ•โ• Time series collections support indexes โ•โ•โ• // Compound index โ€” commonโ€ฆ
Topic 9
โœจ

๐Ÿ“Œ 9. Practical Example: Server Monitoring

๐Ÿ“š `javascript // โ•โ•โ• Create collection โ•โ•โ• db.createCollection("server_metrics", {โ€ฆ
Topic 10
โœจ

๐Ÿ“Œ 10. Time Series vs Normal Collection

๐Ÿ’ก | Feature | Time Series Collection | Normal Collection |โ€ฆ
Topic 11
๐Ÿ”’

โœ… Summary

๐ŸŽฏ KEY POINTS: - Time Series = MongoDB 5.0+ feature for time-based data - timeFieldโ€ฆ
Comparison
โœจ

๐Ÿ“Œ 10. Time Series vs Normal Collection

โš–๏ธ

Storage: Compressed (up to 90% less)

โš–๏ธ

Write speed: Optimized for inserts

โš–๏ธ

Time range queries: Very fast

Quick Quiz
๐Ÿง  QUIZ TIME

Quiz โ€” Question 1

๐Ÿ“˜ MongoDB โ€” Time Series Collections ka sabse sahi definition kya hai?

Complete! ๐ŸŽ‰
COMPLETE

๐Ÿ“˜ MongoDB โ€” Time Series Collections Complete!

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