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CREATE APPLICATION ROLE (Transact-SQL)

Adds an application role to the current database.

Topic link icon Transact-SQL Syntax Conventions


CREATE APPLICATION ROLE application_role_name 
    WITH PASSWORD = 'password' [ , DEFAULT_SCHEMA = schema_name ]
application_role_name

Specifies the name of the application role. This name must not already be used to refer to any principal in the database.

PASSWORD = 'password'

Specifies the password that database users will use to activate the application role. You should always use strong passwords.

DEFAULT_SCHEMA = schema_name

Specifies the first schema that will be searched by the server when it resolves the names of objects for this role. If DEFAULT_SCHEMA is left undefined, the application role will use DBO as its default schema. schema_name can be a schema that does not exist in the database.

ms181491.note(en-US,SQL.90).gifImportant:
 Password complexity is checked when application role passwords are set. Applications that invoke application roles must store their passwords. Application role passwords should always be stored encrypted.

Application roles are visible in the sys.database_principals catalog view.

For information about how to use application roles, see Application Roles.

ms181491.Caution(en-US,SQL.90).gifCaution:
In SQL Server 2005 the behavior of schemas is changed from the behavior in earlier versions of SQL Server. Code that assumes that schemas are equivalent to database users may not return correct results. Old catalog views, including sysobjects, should not be used in a database in which any of the following DDL statements has ever been used: CREATE SCHEMA, ALTER SCHEMA, DROP SCHEMA, CREATE USER, ALTER USER, DROP USER, CREATE ROLE, ALTER ROLE, DROP ROLE, CREATE APPROLE, ALTER APPROLE, DROP APPROLE, ALTER AUTHORIZATION. In a database in which any of these statements has ever been used, you must use the new catalog views. The new catalog views take into account the separation of principals and schemas that is introduced in SQL Server 2005. For more information about catalog views, see Catalog Views (Transact-SQL).

Requires ALTER ANY APPLICATION ROLE permission on the database.

The following example creates an application role called weekly_receipts that has the password 987Gbv876sPYY5m23 and Sales as its default schema.

CREATE APPLICATION ROLE weekly_receipts 
    WITH PASSWORD = '987G^bv876sPY)Y5m23' 
    , DEFAULT_SCHEMA = Sales;
GO
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