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Sharded Multi-Tenant Database using SQL Server Row-Level Security

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24 Nov 2021CPOL11 min read
An overview of how to design a scalable Multi-Tenant Database using Row-Level Security Predicate Functions and DDL triggers to enforce that all shared tables are always restricted according to the tenant.
This article shows concrete example code of a database-level scalable architecture for Multi-Tenant SaaS using sharded SQL Databases u. It shows the creation of the Catalog database, the creation of a shared multitenant database, how to design tables with the TenantId column (and how to design the clustered index for best performance), how to use row-level security predicate functions to automatically filter the records based on the SQL user, and how to create a DDL trigger to enforce that the shared tables will always have the security predicate applied to them, ensuring that a developer mistake will never expose tenant data to other tenants.


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This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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