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📘 MongoDB — Best Practices & Cheatsheet

Production-ready MongoDB — naming, design rules, quick reference! 📋

Topic 1

📌 1. Naming Conventions

📚 ` Database Naming: ✅ lowercase, no spaces, no special chars ✅ myapp, ecommerce,…

Topic 2

💡 ` ┌──────────────────────────────────────────────────────┐ │ Schema Design Golden Rules │…

Topic 3

🎯 ` ┌──────────────────────────────────────────────────────┐ │ Index Strategies │…

Topic 4

⭐ ` ┌──────────────────────────────────────────────────────┐ │ Query Optimization │…

Topic 5

🔑 `javascript // ═══ Bulk writes (much faster than loops!) ═══ // ❌ SLOW: for (const doc of…

Topic 6

✨ ` ✅ Enable authentication (--auth) ✅ Strong passwords (min 16 chars) ✅ Separate user per…

Topic 7

🌟 ` ┌───────────────────────────────────────────────────┐ │ Mistake → Fix │…

Topic 8

🚀 `javascript // ═══════════════════════════════════════════════════ // INSERT (Create) //…

Topic 9

📚 `javascript // ═══ Pipeline Stages ═══ db.coll.aggregate([ { $match: { status: "active" }…

Topic 10

💡 `javascript // ═══ Database Operations ═══ show dbs // List databases use mydb // Switch…

Topic 11

🎯 ` // ═══ Local ═══ mongodb://localhost:27017/mydb // ═══ With auth ═══…

Topic 12

⭐ ` Q: Embed or Reference? → Accessed together? → EMBED → Accessed separately? → REFERENCE…

Topic 13

🔑 KEY POINTS: - Naming: lowercase dbs, plural collections, camelCase fields - Schema:…

Quick Quiz

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