AWS SimpleDB
Amazon SimpleDB is a simple, flexible non-relational data store. Store and query data items with attributes using a simplified API — no schema design required. Think of it like a spreadsheet in the cloud where each row can have completely different columns from every other row.
What is SimpleDB? (Simple Explanation)
SimpleDB is an AWS service in the Database category. Amazon SimpleDB is a simple, flexible non-relational data store.
When Would You Use SimpleDB?
- Simple structured data storage
- Metadata and tagging systems
- Prototyping and proof-of-concepts
- Small-scale web applications
- Configuration and settings storage
Who Uses SimpleDB?
From startups to enterprises, SimpleDB powers:
What Makes SimpleDB Powerful
SimpleDB Pricing & Free Tier
Free Tier: 750 hours/month of db.t2.micro (12 months), 20GB storage, 20GB backup. Pay-as-you-go from ~$0.017/hour.
SimpleDB Best Practices
- 1Enable Multi-AZ deployment for production workloads
- 2Encrypt at rest with KMS — all RDS/DynamoDB engines support it
- 3Set up automated backups with at least 7-day retention
- 4Use IAM database authentication instead of passwords where possible
- 5Monitor with Performance Insights and set CloudWatch alarms on CPU >80%
Getting Started with SimpleDB in 5 Minutes
- 1Open the AWS Console and navigate to SimpleDB
- 2Click "Create database" and choose your engine (or go serverless)
- 3Configure instance size, storage, and Multi-AZ deployment
- 4Set master username/password (use Secrets Manager for production) and click "Create"
SimpleDB CLI Quick Reference
2 production-ready commands. Full CLI Library (225+ services) →
aws simpledb helpView all SimpleDB CLI v2 commands and subcommandsaws simpledb describe-simpledb --helpView options for describing SimpleDB resourcesPros & Cons of SimpleDB
Pros
- Automatic indexing of all attributes
- Simple SELECT, PUT, DELETE API operations
- Automatic replication across multiple datacenters
- Consistent reads on demand
- Pay only for actual data stored and transferred
Cons
- ✕Managed databases cost more than self-hosted for predictable, steady workloads
- ✕Cold starts on serverless databases (Aurora Serverless) can impact latency-sensitive apps
- ✕Vendor lock-in risk — migrating large databases out of AWS is non-trivial
SimpleDB vs Alternatives
SimpleDB vs EC2
Choose SimpleDB for Simple structured data storage and Metadata and tagging systems. It excels at automatic indexing of all attributes.
Choose EC2 as an alternative when your requirements differ. Each service in the Database category serves different architectural patterns.
Services That Work with SimpleDB
SimpleDB is rarely used alone. It is typically combined with:
Compliance & Security
How AWS SimpleDB fits into major compliance standards. Browse all 41 frameworks →
SimpleDB configuration is audited by CIS Benchmarks v1.5–v3.0 for secure cloud defaults.
NIST 800-53SimpleDB access controls, encryption, and audit logging map to NIST 800-53 AC, SC, and AU control families.
PCI DSS 4.0SimpleDB encryption, access control, and logging support PCI DSS for cardholder data environments.
SOC 2SimpleDB security, availability, and confidentiality controls evaluated under SOC 2 Trust Services Criteria.
ISO 27001SimpleDB configuration and monitoring controls map to ISO 27001 Annex A information security management.
Frequently Asked Questions About SimpleDB
What is AWS SimpleDB?
Amazon SimpleDB is a simple, flexible non-relational data store. Store and query data items with attributes using a simplified API — no schema design required. Think of it like a spreadsheet in the cloud where each row can have completely different columns from every other row.
What is SimpleDB used for?
SimpleDB is commonly used for: Simple structured data storage; Metadata and tagging systems; Prototyping and proof-of-concepts; Small-scale web applications; Configuration and settings storage. It's a core service in the database category of AWS.
Is SimpleDB free?
Free Tier: 750 hours/month of db.t2.micro (12 months), 20GB storage, 20GB backup. Pay-as-you-go from ~$0.017/hour.
What are the key features of SimpleDB?
SimpleDB's most important capabilities include: Automatic indexing of all attributes. Simple SELECT, PUT, DELETE API operations. Automatic replication across multiple datacenters. Consistent reads on demand. Pay only for actual data stored and transferred. Each of these is designed to help teams simple structured data storage.
How does SimpleDB compare to alternatives?
SimpleDB competes with both AWS-native alternatives (EC2, S3, Lambda) and third-party equivalents. The right choice depends on your specific requirements for scalability, cost, and operational overhead. See the comparisons section below for detailed guidance.
Which compliance frameworks apply to SimpleDB?
CIS AWS v3.0: SimpleDB configuration is audited by CIS Benchmarks v1.5–v3.0 for secure cloud defaults. NIST 800-53: SimpleDB access controls, encryption, and audit logging map to NIST 800-53 AC, SC, and AU control families. PCI DSS 4.0: SimpleDB encryption, access control, and logging support PCI DSS for cardholder data environments. SOC 2: SimpleDB security, availability, and confidentiality controls evaluated under SOC 2 Trust Services Criteria. ISO 27001: SimpleDB configuration and monitoring controls map to ISO 27001 Annex A information security management.
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