Cannot update partitioned view '%.*ls' because the definition of the view column '%.*ls' in table '%.*ls' has a IDENTITY constraint.

Error Message:
Msg 4450, Level 16, State 1, Line 2
Cannot update partitioned view '%.*ls' because the definition of the view column '%.*ls' in table '%.*ls' has a IDENTITY constraint.

Severity level:
16.

Description:
This error message appears when you try to update a UNION ALL view but at least one of the underlying base tables has an IDENTITY constraint defined.

Consequences:
The T-SQL statement can be parsed, but causes the error at runtime.

Resolution:
Errors of the Severity Level 16 are generated by the user and are corrigible by the user. The statement cannot be executed this way. You cannot update a UNION ALL view with a IDENTITY constraint in an underlying base table.

Versions:
This error message was introduced with SQL Server 2000.

Example(s):
IF OBJECT_ID ('dbo.T') IS NOT NULL
    DROP TABLE dbo.T;
GO
IF OBJECT_ID ('dbo.T1') IS NOT NULL
    DROP TABLE dbo.T1;
GO
IF OBJECT_ID ('dbo.V') IS NOT NULL
    DROP VIEW dbo.V;
GO

CREATE TABLE dbo.T
(
    c1 int PRIMARY KEY CHECK (c1 BETWEEN 1 AND 10),
    c2 int IDENTITY
)
GO
CREATE TABLE dbo.T1
(
    c1 int PRIMARY KEY CHECK (c1 BETWEEN 11 AND 20),
    c2 int
)
GO

CREATE VIEW dbo.V
AS
SELECT
    c1, c2
FROM
    dbo.T
UNION ALL
SELECT
    c1, c2
FROM
    dbo.T1;
GO

UPDATE dbo.V
    SET
    c2 = 11;

Remarks:
In the above example we try to update the view dbo.V. Because dbo.T has an IDENTITY constraint, the error is raised.