MSSQL

Introduction to Row-Level Security in SQL Server In this article, I’m going to discuss Row-Level Security in SQL Server. RLS or Row-Level Security as the name suggests is a security mechanism that restricts the records from a SQL Server table based on the authorization context of the current user that is logged in. This means the records from the tables are displayed based on who the user is and to which records do the user has access to. This is usually done to allow specific users to have access to their data only without permission to view other users’ data. Figure 1 – Row-Level Security Illustration As you can see in the illustration above, the first set of records depicts the entire table in the SQL Server database which has 5 records in it. A master user may be able to view all the records in the table. However, when a specific user logs in, the Row-Level Security in SQL Server feature blocks the view of data based on the column “ UserName ”. For example, when the user “ Fred ” l...