--本年
  select   m as [Date],sum(case when datepart(month,CreateDateTime)=m then 1 else 0 end )as [Count]  
   from [dbo].CrmCustomer c,
   (select 1 m 
    union all select 2  
    union all select 3 
    union all select 4
    union all select 5 
    union all select 6  
    union all select 7 
    union
 
 all select 8  
    union all select 9  
    union all select 10  
    union all select 11  
    union all select 12) aa where  ‘2018‘= year(CreateDateTime) group by   m;
    
    
    --本月
    select DATEPART(day,CreateDateTime) as [Date],COUNT(id) AS [Count] from [dbo].CrmCustomer 
    WHERE   DATEPART
 
(mm, CreateDateTime) = DATEPART(mm, GETDATE()) and DATEPART(yy, CreateDateTime) = DATEPART(yy, GETDATE()) 
    group by DATEPART(day,CreateDateTime)
           

    --本周                   
    select convert(nvarchar(10),CreateDateTime,120) AS [Date],COUNT(id) as [Count] from [dbo].CrmCustomer 
    where
 
 datediff(week, CreateDateTime ,getdate())=0 group by convert(nvarchar(10),CreateDateTime,120)

SqlServer 根據時間統計數據展示圖表