包括上午/下午-使用以下:

SELECT 
  concat(case when datepart(hour,getdate()) % 12 = 0 then 12 
              else datepart(hour,getdate()) % 12 end,
         case when datepart(hour,getdate()) < 12 then ' AM' 
              else ' PM' end
        )

select convert(time,GETDATE())

试试这个吧:

SELECT CONVERT(CHAR(8),GETDATE(),108)

试试这个吧:

   DATEPART(HOUR,GETDATE()) 

SELECT DATEPART(HOUR, GETDATE());

DATEPART文档

select case when [am or _pm] ='PM' and datepart(HOUR,time_received)<>12 
           then dateadd(hour,12,time_received) 
           else time_received 
       END 
from table

作品