当前年份加减: SELECT CONVERT(varchar(12),DATEADD(year,1,GETDATE()),23) as year SELECT CONVERT(varchar(12),DATEADD(year,-1,GETDATE()),23) as year 当前月份的加减: SELECT CONVERT(varchar(12),DATEADD(MONTH,1,GETDATE()),23) as month SELECT CONVERT(varchar(12),DATEADD(…