Unverified50% confidenceFactExact time
Multi-tenancy is a core concept in SaaS architecture, with three common implementation approaches: shared database with shared schema (distinguished by tenant_id), shared database with separate schemas, and separate databases.
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Long-term
Relevance
10/11/2026
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VerifiedAt the database level, multi-tenant data isolation mainly has three classic solutions: shared database + shared schema (field-level isolation), shared database + separate schema (schema-level isolation), and separate database (physical-level complete isolation).76% similarUnverifiedMany successful SaaS products start with a shared schema and gradually evolve toward separate schemas or even separate databases as customer scale and compliance requirements increase.66% similarUnverifiedMerge focuses on the Unified API direction, primarily covering vertical categories such as HR, ATS, and CRM, adopting a fully managed SaaS model.62% similarUnverifiedCross-user shared RAG caching means a multi-tenant knowledge management system must be built, which significantly increases the complexity of permission control, data classification, and audit trails.62% similarVerifiedTechnical implementation paths for shared memory systems include structured storage in relational databases, semantic storage in vector databases, and a hybrid architecture combining graph databases with vector indexing.60% similar
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