How do I create or alter view on MSSQL?

IF NOT EXISTS(select * FROM sys.views where name = 'data_VVVV ')
    BEGIN
        CREATE VIEW data_VVVV AS 
        SELECT VCV.xxxx, VCV.yyyy AS yyyy, VCV.zzzz AS zzzz FROM TABLE_A VCV
    END
ELSE
    BEGIN
        ALTER VIEW data_VVVV AS 
        SELECT VCV.xxxx, VCV.yyyy AS yyyy, VCV.zzzz AS zzzz FROM TABLE_A VCV
    END