nosql-database-design

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Design NoSQL database schemas for MongoDB and DynamoDB. Use when modeling document structures, designing collections, or planning NoSQL data architectures.

Designscripts

What this skill does


# NoSQL Database Design

## Table of Contents

- [Overview](#overview)
- [When to Use](#when-to-use)
- [Quick Start](#quick-start)
- [Reference Guides](#reference-guides)
- [Best Practices](#best-practices)

## Overview

Design scalable NoSQL schemas for MongoDB (document) and DynamoDB (key-value). Covers data modeling patterns, denormalization strategies, and query optimization for NoSQL systems.

## When to Use

- MongoDB collection design
- DynamoDB table and index design
- Document structure modeling
- Embedding vs. referencing decisions
- Query pattern optimization
- NoSQL indexing strategies
- Data denormalization planning

## Quick Start

Minimal working example:

```javascript
// Single document with embedded arrays
db.createCollection("users");

db.users.insertOne({
  _id: ObjectId("..."),
  email: "[email protected]",
  name: "John Doe",
  createdAt: new Date(),

  // Embedded address
  address: {
    street: "123 Main St",
    city: "New York",
    state: "NY",
    zipCode: "10001",
  },

  // Embedded array of items
  orders: [
    {
      orderId: ObjectId("..."),
      date: new Date(),
      total: 149.99,
    },
    {
// ... (see reference guides for full implementation)
```

## Reference Guides

Detailed implementations in the `references/` directory:

| Guide | Contents |
|---|---|
| [Document Structure Design](references/document-structure-design.md) | Document Structure Design |
| [Indexing in MongoDB](references/indexing-in-mongodb.md) | Indexing in MongoDB |
| [Schema Validation](references/schema-validation.md) | Schema Validation |
| [Table Structure](references/table-structure.md) | Table Structure |
| [Global Secondary Indexes (GSI)](references/global-secondary-indexes-gsi.md) | Global Secondary Indexes (GSI) |
| [DynamoDB Item Operations](references/dynamodb-item-operations.md) | DynamoDB Item Operations |

## Best Practices

### ✅ DO

- Follow established patterns and conventions
- Write clean, maintainable code
- Add appropriate documentation
- Test thoroughly before deploying

### ❌ DON'T

- Skip testing or validation
- Ignore error handling
- Hard-code configuration values

Files: 9

Size: 8.3 KB

Complexity: 44/100

Category: Design

Source: https://github.com/aj-geddes/useful-ai-prompts/tree/main/skills/nosql-database-design

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