使用时间戳+merge 进行两个表之间的同步

print  '当前表：IWT_Page'
declare @max_id int --获得最大的
select @max_id=ISNULL(max(time_stamp),0) from [Event_topic]
print @max_id
;with cet_tb
as
(
SELECT [TopicId]
      ,[TopicTitle]
      ,[TopicCrt]
      ,[releaseMedia]
      ,[EventType]
      ,[area]
      ,[EventSchedule]
      ,[BroadcastingType]
      ,[cityName]
      ,[productName]
      ,time_stamp 
      --  
  FROM [C1].[iWOMTrackData].[dbo].[IWT_TopicTracking]
  where 1=1
  and BrandId=20002
  and TopicState=1
  and time_stamp>@max_id
)
merge into [Haier_Charts].[dbo].[Event_topic] as T
using cet_tb as S
on T.TopicId=S.TopicId
when matched
then update
     SET T.[TopicID] = S.[TopicId]
      ,T.[TopicName] = S.[TopicTitle]
      ,T.[TopicDate] = S.[TopicCrt]
      ,T.[mediaName] = S.[releaseMedia]
      ,T.[EventType] = S.[EventType]
      ,T.[AreaName] = S.[area]
      ,T.[EventSchedule] =S.[EventSchedule]
      ,T.[BroadcastingType] =S. [BroadcastingType]
      ,T.[cityName] = S.[cityName]
      ,T.[productName] = S.[productName]
      ,T.time_stamp = S.time_stamp
when not matched
then insert values(S.[TopicId],S.[TopicTitle],S.[TopicCrt],S.[releaseMedia],S.[EventType],S.[area],S.[EventSchedule],S. [BroadcastingType],S.[cityName],S.[productName],S.time_stamp);

（备注：时间戳类型可以与BIGINT类型之间进行转换！）

删除 操作建议通过标示位，代替然后再统一进行物理删除

可以用一个表配置，每一个表物理删除的时间

表结构：

表名、时间、状态