Skill Topic · Cinematic

📘 MongoDB — Schema Validation

Data quality enforce karo — JSON Schema se documents validate! ✅

Overview

📘 MongoDB — Schema Validation — Quick Facts

📌

jpeg: png

Topic 1

📌 1. Schema Validation Kya Hai?

📚 ` MongoDB = Schema-flexible BUT production me chahiye: rules + constraints! Without…

Topic 2

📌 2. Create Collection with Validation

💡 `javascript // ═══ JSON Schema Validation ═══ db.createCollection("users", { validator: {…

Topic 3

📌 3. Validation Level & Action

🎯 `javascript // ═══ validationLevel ═══ // "strict" → ALL documents validate (insert +…

Topic 4

📌 4. Add/Modify Validation on Existing Collection

⭐ `javascript // ═══ collMod — Modify validation rules ═══ db.runCommand({ collMod:…

Topic 5

📌 5. Data Types (bsonType)

🔑 `javascript // ═══ Available bsonType values ═══ { $jsonSchema: { properties: {…

Topic 6

📌 6. Nested Object Validation

✨ `javascript db.createCollection("orders", { validator: { $jsonSchema: { bsonType:…

Topic 7

📌 7. Array Validation

🌟 `javascript db.createCollection("products", { validator: { $jsonSchema: { bsonType:…

Topic 8

📌 8. Conditional Validation

🚀 `javascript // ═══ $or / $and / $not in validator ═══ db.createCollection("vehicles", {…

Topic 9

📌 9. Error Handling

📚 `javascript // ═══ Validation error ═══ try { db.users.insertOne({ name: 123, age: "old"…

Topic 10

📌 10. Bypass Validation

💡 `javascript // ═══ Admin override (use carefully!) ═══ db.users.insertOne( { name:…

Topic 11

📌 11. Complete Example — User Management

🎯 `javascript // ═══ Production-grade user schema ═══ db.createCollection("users", {…

Topic 12

📌 12. Migration Strategy

⭐ ` Schema Validation Migration: Phase 1: OBSERVE (no enforcement)…

Topic 13

✅ Summary

🔑 KEY POINTS: - $jsonSchema = JSON Schema Draft 4 based validation - required: mandatory…

Quick Quiz

Quiz — Question 1

📘 MongoDB — Schema Validation ka sabse sahi definition kya hai?

Complete! 🎉

📘 MongoDB — Schema Validation Complete!

Aliens School · HIEN · Cinematic Knowledge

✅