Tenant Data Analysis by SQL Single database, separate schema Database per tenant Multiple databases, multiple tenants per database, shared schema
One database to hold the data for all tenants Every tenant's data is stored in the same set of tables Tables that contain tenant-specific data include a column to identify which tenant each row belongs.
Separate tables for each tenant, each set under a tenant-specific schema
Adapting to Change
I've covered some of the main approaches to multi-tenancy with SQL Server. If you're starting to design a multi-tenant system, hopefully this codes will provide the start of some good discussions within your team to work out what strategy makes most sense for you.