本文介绍了select语句中的SQL增量列值的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我正在尝试编写 Select 语句,该语句将列的值增加50,但是范围可以最终是200,000,所以我不能在case语句中手动完成所有操作。
I'm trying to write a Select statement that increments a column value by 50, but the range can end up being 200,000 so I can't do it all in a case statement manually.
与此类似,但不是手动编写增量
Something similar to this, but instead of manually writing the increments
Select count(order_id) as order_count, case when revenue between 0 and 50 then ‘$50’ when order_value between 51 and 100 then ‘$100’ else ‘over $101’ end as revenue_bucket from Orders group by 2推荐答案
打开您的收入到存储桶值中,然后从中取出字符串:
Turn your revenue into the bucket value, then make string out of it:
SELECT count(order_id) AS order_count, '$' || ((((revenue - 0.01)/50)::int + 1) * 50)::text AS revenue_bucket FROM Orders GROUP BY 2;显然,这远远超过了$ 200,000。
This obviously runs well past $200,000.
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select语句中的SQL增量列值
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