if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[GDPRApprove]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
  AND NOT EXISTS (
    SELECT *
    FROM sys.all_columns c
    join sys.tables t on t.object_id = c.object_id
    join sys.schemas s on s.schema_id = t.schema_id
    join sys.default_constraints d on c.default_object_id = d.object_id
    where t.name = 'GDPRApprove'
    and c.name = 'Enable'
    and s.name = 'DBO')
BEGIN
  ALTER TABLE [dbo].[GDPRApprove] ADD  CONSTRAINT [DF_GDPRApprove_Enable]  DEFAULT ((0)) FOR [Enable]
END