SQL SELECT每X行增量批号 [英] SQL SELECT incremental batch number every X rows

问题描述

我正在尝试编写一个 SQL SELECT 查询，该查询具有一个每 5 行递增的批号列，我尝试在动态行号上使用 hacky 整数除法，但无法绕过第一个批号增量始终为 4 行而不是 5 行(见图).

I'm trying to write a SQL SELECT query that has a batch number column that increments every 5 rows, I've tried using a hacky integer division on a dynamic row number, but can't get around the first batch number increment always being 4 rows instead of 5 (see image).

RowNumber 1-5 应该是 1，6-10 应该是 2 等等.

RowNumber 1-5 should be 1, 6-10 should be 2 etc..

有什么想法可以实现这一目标吗?

Any ideas how I can achieve this?

select * ROW_NUMBER() OVER (Order by (select 0)) AS RowNumber,
1 + convert(int, (ROW_NUMBER() OVER (Order by (select 0)) / 5)) as BatchNumber,
* from WorkQueue

推荐答案

这应该有效:

select ROW_NUMBER() OVER (Order by (select 0)) AS RowNumber,
(case when convert(int, (ROW_NUMBER() OVER (Order by (select 0)) % 5))=0 then 0 else 1 end) + convert(int, (ROW_NUMBER() OVER (Order by (select 0)) / 5)) as BatchNumber,
* from WorkQueue

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