SqlServer 数据去重

找出所有不重复的数据

SELECT   [Id]
      ,[Name]
      ,[Mobile]
      ,[City]
      ,[Counter]
      ,[utm_source]
      ,[utm_medium]
      ,[utm_campaign]
      ,[source]
      ,[smsResponse]
      ,[CreateTime]
  FROM [dbo].[Campaigns]
where id in (select max(ID) as Id from [Campaigns] group by [Mobile])