SQL server获取上月数据

select * from ProcessStatus where DATEPART(yyyy,create_time) = DATEPART(yyyy,dateadd(m,-1,GETDATE())) and DATEPART(m,create_time) = DATEPART(m,dateadd(m,-1,GETDATE())); 

select * from ProcessCode where DATEPART(yyyy,create_time) = DATEPART(yyyy,dateadd(m,-1,GETDATE())) and DATEPART(m,create_time) = DATEPART(m,dateadd(m,-1,GETDATE()));

select * from ProcessData where DATEPART(yyyy,create_time) = DATEPART(yyyy,dateadd(m,-1,GETDATE())) and DATEPART(m,create_time) = DATEPART(m,dateadd(m,-1,GETDATE()))