aws-dynamodb

SKILL.md

DynamoDB is a fully managed NoSQL database designed for single-digit millisecond performance at any scale. Master single-table design and access pattern modeling.

DynamoDB requires you to know your queries before designing your schema. Model around how you'll access data, not how data relates. Single-table design stores multiple entity types in one table using generic key attributes.

| Partition Key (PK) | Primary key attribute - determines data distribution | | Sort Key (SK) | Optional secondary key for range queries within partition | | GSI | Global Secondary Index - alternate partition/sort keys | | LSI | Local Secondary Index - same partition, different sort | | Item | Single record (max 400 KB) | | Attribute | Field within an item |

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