如何在sql中使用范围获取价格范围？

Question

我有一张具有以下结构的表格。

从该表中我需要使用表中给出的范围来查找价格。

ex:
   if i give the Footage_Range1=100 means it will give the output as 0.00 and 
   if Footage_Range1=101 means the output is 2.66
   if Footage_Range1=498 means the output is 2.66

如何编写查询以获取价格？

Answer 1

如果我理解你的要求你可以试试这个：

SELECT
    price 
FROM 
    my_table
WHERE
    Footage_Range1 <= YOUR_RANGE
ORDER BY
    Footage_Range1 DESC
LIMIT 1

YOUR_RANGE是输入：100,101,498等

此查询基本上会将最接近的价格返回到Footage_Range1输入的较小或相等。

Answer 2

我有满足您要求的样本。请看一下。

DECLARE @range INT = 498
DECLARE @Test TABLE(mfg_id INT, footage_range INT, price FLOAT)

INSERT INTO @Test ( mfg_id, footage_range, price )
            SELECT 2, 0, 0.00
UNION ALL   SELECT 2, 101, 2.66
UNION ALL   SELECT 2, 500, 2.34
UNION ALL   SELECT 2, 641, 2.21
UNION ALL   SELECT 2, 800, 2.11
UNION ALL   SELECT 2, 1250, 2.06

SELECT TOP 1 
 * 
FROM @Test WHERE footage_range <= @range
ORDER BY footage_range DESC

Answer 3

try below code..

select price from your_table where footage_range1 <=rangevalue limit 1;