Physical Modeling › SQL Server Common Functionality › SQL Server Principals › Define SQL Server Application Roles

Define SQL Server Application Roles

A role uses Windows security accounts to limit the scope of access and permissions when users access the database. An application role allows access to specific data to only those users that connect through a particular application. Application roles contain no members and are inactive by default. Application roles work with both authentication modes. Access to other databases is limited to permissions granted in those databases to Guest. A database in which Guest has been disabled cannot be accessed by application roles in other databases.

Use the SQL Server Application Role Editor to define application role objects in a SQL Server 2005 or 2008 physical model.

To define SQL Server application roles

1. Click Target - SQL Server, Principals, Application Roles on the Model menu.

   The SQL Server Application Role Editor opens.

2. Select the application role in the Navigation Grid that you want to define and work with the following options:

   Note: Click New on the toolbar to create a new application role. Use the Enter filter text box to filter a very large list of application roles to quickly locate the one that you want to define.

   Name

   Displays the application role name. You can change the application role name in this field.

   Default Schema

   Specifies the default schema assigned to the application role. Select the default schema from the drop-down list.

   Generate

   Generates SQL during forward engineering. Clear the check box if you do not want to generate SQL.

3. Click the Permission tab and work with the following options:

   Note: Use the options on the toolbar to create a new permission, delete a selected permission, or open the SQL Server Permission Editor to manage permission properties.

   Name

   Displays the permission name. Change the name of the permission in this field.

   Type

   Specifies the permission type. Select the option from the drop-down list.

   Cascade

   Specifies the cascade action for the permission. Indicates that the permission revoked is also revoked from other principals to which it has been granted by this principal.

   With Grant

   Specifies if the user can grant this permission to other users or not.

   Grant As Principal

   Specifies the principal used to acquire the permissions. Select a principal from the drop-down list.

4. (Optional) Click the Comment tab and enter any comments that you want to associate with the application role.
5. (Optional) Click the Where Used tab to view where the application role is used in the model.
6. (Optional) Click the UDP tab to work with user-defined properties for the application role.
7. (Optional) Click the Notes tab to view history information and view or edit user notes.
8. Click Close.

   The application role is defined and the SQL Server Application Role Editor closes.

More information:

SQL Server Property Editors

Define Permissions for an Object in a SQL Server Property Editor

Add a Comment in a Property Editor

Add a UDP in a SQL Server Physical Property Editor