Multi-Tenancy
Multi-tenancy is an architecture where a single application serves multiple isolated customers (tenants), keeping each tenant's data separate and secure.
Multi-tenant SaaS must guarantee that one customer can never see another's data. The main patterns are a shared schema with row-level security, a schema per tenant, and a database per tenant — trading operational simplicity for stronger isolation.
Shared schema with RLS is cheapest and simplest for many small tenants. A database per tenant offers the strongest isolation and per-tenant backups or residency, at higher operational cost.
The right choice depends on tenant count, isolation requirements, and compliance needs — and ideally one you can evolve without a rewrite.
Related terms
Multi-Tenancy in Kolaybase
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