A security rule defines the criteria that the Rule Engine uses to parse and rewrite an SQL request. A security rule is part of a security rule set. You can create a security rule in a rule folder or as a rule in a rule tree.
Security rules specify the technique that the Rule Engine uses to mask data. Security rules consist of a matcher, a rule action, and a processing action. Use security rules to mask data in a specific row or to mask an entire column. For example, create a security rule that rewrites SQL requests that reference the Social Security column from the Employee table.
Connection rules define the security rules that the Rule Engine applies. Use the connection properties to define security rules for Microsoft SQL Server.