IF NOT EXISTS(SELECT * FROM sys.columns WHERE object_id = OBJECT_ID(N'[dbo].[AUTOS]')
AND name = 'QRCode')
ALTER TABLE AUTOS ADD QRCode varchar(255) NULL

IF NOT EXISTS(SELECT * FROM sys.columns WHERE object_id = OBJECT_ID(N'[dbo].[AUTOSAENDERUNGEN]')
AND name = 'QRCode')
ALTER TABLE AUTOSAENDERUNGEN ADD QRCode varchar(255) NULL