You can modify a view using the ALTER VIEW statement.
The ALTER VIEW statement replaces a view
definition with a new definition; it does not modify an existing
view definition.
The ALTER VIEW statement maintains the
permissions on the view.
Example
For example, to replace the column names with more informative
names in the DepartmentSize view described
above, you could use the following statement:
ALTER VIEW DepartmentSize
(DepartmentID, NumEmployees)
AS
SELECT DepartmentID, COUNT(*)
FROM Employees
GROUP BY DepartmentID