AWS DynamoDB Database
AWS DynamoDB is a fully managed NoSQL database optimized for low-latency access. You define a table with a primary key (partition key ± sort key), store JSON documents, and query at millisecond speeds. Mastery means understanding key design (avoiding hot partitions), query patterns (GSI, LSI, scans), consistency models (eventual vs. strong), and cost optimization. Learning path: DynamoDB basics (2 weeks) → table design (2 weeks) → querying (2 weeks) → optimization + streams (2 weeks).
什麼是 AWS DynamoDB Database
AWS DynamoDB is a fully managed NoSQL database built for scale. You create tables with a primary key (partition key or partition + sort key), store JSON documents, and query with sub-millisecond latency. No servers, no maintenance, auto-scales to billions of items. Pay per request or pre-purchase capacity. DynamoDB is optimized for key-value access. You query by primary key or secondary indexes. If you need complex joins across many tables, RDS is better.
💰 各地區薪資
| 地區 | 初級 | 中級 | 高級 |
|---|---|---|---|
| USA | $80,000 | $130,000 | $180,000 |
| UK | £48,000 | £80,000 | £120,000 |
| EU | €52,000 | €85,000 | €130,000 |
| CANADA | CA$85,000 | CA$135,000 | CA$185,000 |
🎓 認證
🎯 使用 AWS DynamoDB Database 的職業
❓ 常見問題
When should I use DynamoDB vs. RDS?
What's a hot partition?
How do I query across multiple partition keys?
Is DynamoDB ACID compliant?
How much does DynamoDB cost?
Can I export DynamoDB data?
Is DynamoDB suitable for production?
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