Shared Schema vs. Isolated Tables: Which Multi-Tenant Database Architecture Best Ensures Data Security?

Multi-Tenant Databases: Shared Schema vs. Isolated Tables

Multi-Tenant Database Architectures

Multi-tenant databases host data for multiple tenants within a single database instance. This approach offers scalability and cost-effectiveness compared to separate databases for each tenant. However, concerns exist regarding data security in shared environments.

Consider Shared Schema Approach

For a multi-tenant solution with over 10,000 tenants, the shared-database, single-schema approach is suitable. This approach maintains a common table structure for all tenants, eliminating the need for schema migrations and ensuring consistency across the system.

Addressing Security Concerns

The Microsoft article "Multi-Tenant Data Architecture" addresses concerns about data safety in shared environments. It emphasizes the misconception that physical isolation alone provides sufficient security. Shared approaches can offer strong data protection through sophisticated design patterns and security measures like:

• Trusted Database Connections: Establishing authenticated connections to prevent unauthorized access.
• Tenant View Filter: Restricting tenant-specific data visibility through customized views.
• Tenant Data Encryption: Encrypting tenant data to ensure privacy and data integrity.

Implementing Data Safety Measures

A Service Level Agreement (SLA) with data safety guarantees can provide tenants with confidence in the protection of their data. The SLA should clearly outline the measures taken to ensure data confidentiality, integrity, and availability.

Conclusion

The shared-database, single-schema approach is well-suited for large-scale multi-tenant scenarios, offering scalability, cost-effectiveness, and data security through robust design principles and data protection techniques.

The above is the detailed content of Shared Schema vs. Isolated Tables: Which Multi-Tenant Database Architecture Best Ensures Data Security?. For more information, please follow other related articles on the PHP Chinese website!