[SQL-码农] 当序以固定数据为一组时

declare @RowCount int
set @RowCount=5
select id/@RowCount,id%@RowCount
,归组编号= case when id%@RowCount=0 then id/@RowCount-1 else id/@RowCount end
,组内序号= case when id%@RowCount=0 then @RowCount else id%@RowCount    end

from (
select  ROW_NUMBER() over (Order By Tableid) as ID
from Table)t