遍历数据库全部表，将是datetime类型的列的值进行更新

declare @tablename nvarchar(80)
  declare @cloumn nvarchar(80)
  declare @sql nvarchar(400)
declare c1 cursor scroll for
 select table_name,column_name from information_schema.columns where DATA_TYPE='datetime'
 open c1
  fetch first from c1 into @tablename,@cloumn
  while @@fetch_status=0
   begin
      
      set @sql='update '+@tablename+' set  '+@cloumn+'=DATEADD(yy,10,'+@cloumn+')  where '+@cloumn+' is not null';
      exec (@sql)
     fetch next from c1 into @tablename,@cloumn
   end
close c1