Keeping each tenant in a separate database makes it very easy to move a highly-demanding tenant to their own server, place their data/log files on faster I/O, etc. It fully depends on your requirement as which approach to choose but if you want a truly multi-tenant application I would suggest the 3 rd approach i.e. The Overflow #43: Simulated keyboards. Right now, I use single field Primary Key which is Id (Guid). Should I use a single or multiple database setup for a multi-client application? 2. Shared Database Shared Schema. Shared database, shared schema. CloudExpo SaaS - Multi-Tenant Database Design Options. So those are some of the Tips & Tricks you can use in order to be successful building Multi-Tenant Databases in Windows Azure SQL Databases. But stepping back, you should plan to have multiple federated databases holding your tenant data. There are several approaches to multi-tenant databases. 3. SQL Server Central Mixing tables from different databases/applications into one database. Browse other questions tagged sql-server sql-server-2008 database-design multi-tenant or ask your own question. When you're designing a multi-tenant database, you generally have three options: Ask SQL Server Central One database or multiple? All the tables will have TenantId (Guid / UNIQUEIDENTIFIER) field. Featured on Meta Responding to the ⦠(7) Another point to consider is that you may have a legal obligation to keep one companies' data separate from anothers'. There are many important advantages to isolating a tenant in a database. One database per tenant. database-design - single - sql server multi tenant schema . A tenant identifier (tenant key) associates every row with the right tenant. If each tenant does not need physical separation of data and you don't plan on making tenant specific schema changes in the database then I would think a multi-tenant three database design ⦠It's not hard to imagine that these databases simply perform worse. Since each customer will only be granted access to its own schema, itâs very easy to achieve customer isolation. The Overflow Blog Improve database performance with connection pooling. Therefore, the tenant identifier is the database schema itself. Shared Database Separate Schema. Ayende@Rahien blog Multi Tenancy - The Physical Data Model â Daniel Hutmacher Mar 27 '17 at 18:50 Yes, it make sense to have the TenantId in every table to avoid the unnecessary joins too. Shared database, one schema per tenant. Posted: August 11, 2012. For Architecting a Database You can Opt for any One of the Following Three Approaches: 1. And with a Tenant_ID column in every table, you'll also be able to apply row-level security if you're on SQL Server 2016 or the latest Azure SQL Database. When you have a multi-tenant database, almost every table will have a tenant ID of some type, and these columns will be involved in almost every join operation. I'm building a multi-tenant app (single database, single schema) using ASP Web API, Entity Framework, and SQL Server/Azure database. You can still go with a multi-tenant database design, but in the end state you will have a mix of multi-tenant and single-tenant databases. MSDN blogs Moving to Multi-Tenant Database Model Made Easy with SQL Azure Federations. Tenant data is isolated. I hope that helps and would love to have your thoughts about it. For discussion, they're usually broken into three categories. 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