CREATE VIEW dbo.PersonsView
AS
SELECT
    name, 
    address 
FROM persons;

This query will drop the view - if it already exists - and create a new one.

IF OBJECT_ID('dbo.PersonsView', 'V') IS NOT NULL
    DROP VIEW dbo.PersonsView
GO

CREATE VIEW dbo.PersonsView
AS
SELECT
    name, 
    address 
FROM persons;

If a view is created WITH SCHEMABINDING, the underlying table(s) can't be dropped or modified in such a way that they would break the view. For example, a table column referenced in a view can't be removed.

CREATE VIEW dbo.PersonsView
WITH SCHEMABINDING
AS
SELECT 
    name,
    address
FROM dbo.PERSONS  -- database schema must be specified when WITH SCHEMABINDING is present

Views without schema binding can break if their underlying table(s) change or get dropped. Querying a broken view results in an error message. sp_refreshview can be used to ensure existing views without schema binding aren't broken.