使用Have时获取sql错误无效列名

Question

我正在尝试在 SQL 的 SSMS 中执行此查询，但出现如下错误：

SQL查询：

SELECT 
    LocationId, 
    (3959 *
     acos(cos(radians(37)) * 
     cos(radians(Latitude)) * 
     cos(radians(Longitude) - 
     radians(-122)) + 
     sin(radians(37)) * 
     sin(radians(Latitude)))) AS distance 
FROM 
    [dbo].[UserLocation]
HAVING 
    distance < 28 
ORDER BY 
    distance

我收到此错误：

消息 207，第 16 层，State 1，第 13 行
列名“距离”无效

Answer 1

有几种方法可以解决这个问题。 希望以下在语法上是正确的，因为显然无法直接测试。

您可以使用派生查询或 CTE，例如

with d as (
 LocationId, 
 (
   3959 *
   acos(cos(radians(37)) * 
   cos(radians(Latitude)) * 
   cos(radians(Longitude) - 
   radians(-122)) + 
   sin(radians(37)) * 
   sin(radians(Latitude)))
 ) AS distance 
 FROM dbo.UserLocation
)
select *
from d
where distance < 28
order by distance

你也可以使用申请

select LocationId, distance
from dbo.UserLocation
cross apply(values(
   3959 *
   Acos(Cos(Radians(37)) * 
   Cos(Radians(Latitude)) * 
   Cos(Radians(Longitude) - 
   Radians(-122)) + 
   Sin(Radians(37)) * 
   Sin(Radians(Latitude)))
    ))v(distance)
where distance < 28
order by distance