SQL Server 2008 のビューに ID 列を追加する

ROW_NUMBER() を使用します SQL Server 2008 で機能します。

Create View [MyView] as

SELECT ROW_NUMBER() OVER( ORDER BY col1 ) AS id, col1, col2, col3
FROM(
    Select col1, col2, col3 From Table1
    Union All
    Select col1, col2, col3 From Table2 ) AS MyResults
GO