使用计算列的 Having 子句查询错误

Question

我正在尝试使用数据库中的位置根据纬度和经度查找最近的位置。这是我的查询：

select *,
acos(cos(33.7103820972222 * (PI()/180)) *
 cos(73.05794 * (PI()/180)) *
 cos(Lat * (PI()/180)) *
 cos(Lon * (PI()/180))
 +
 cos(33.7103820972222 * (PI()/180)) *
 sin(73.05794 * (PI()/180)) *
 cos(Lat * (PI()/180)) *
 sin(Lon * (PI()/180))
 +
 sin(33.7103820972222 * (PI()/180)) *
 sin(73.05794 * (PI()/180))
) * 3959 AS Dist from tblOrg having Dist < 5 order by Dist

我在下一行的 Dist 中遇到错误 having Dist < 5.

Answer 1

正如 marc_s 评论的那样，“HAVING 应该只用于包含 SUM、COUNT 等聚合函数的条件 - 否则，如果您不这样做”在您的条件下没有任何聚合，请改用 WHERE"

并且您不能直接在 having 或 where 子句中访问计算列。因此，改为进行子查询：

select *
from (
  select *,
    acos(cos(33.7103820972222 * (PI()/180)) *
    cos(73.05794 * (PI()/180)) *
    cos(Lat * (PI()/180)) *
    cos(Lon * (PI()/180))
    +
    cos(33.7103820972222 * (PI()/180)) *
    sin(73.05794 * (PI()/180)) *
    cos(Lat * (PI()/180)) *
    sin(Lon * (PI()/180))
    +
    sin(33.7103820972222 * (PI()/180)) *
    sin(73.05794 * (PI()/180))
    ) * 3959 AS Dist
  from tblOrg
) x
where Dist < 5
order by Dist

Answer 2

这个查询终于解决了我的问题。

    tblOrg.Id as Id,
    ( 6371  * acos( cos( radians(33.7103820972222) ) 
    * cos( radians( Lat  ) ) 
    * cos( radians( Lon  ) 
    - radians(73.05794) ) 
    + sin( radians(33.7103820972222) ) 
    * sin( radians( Lat ) ) ) ) AS Distance
FROM 
    tblOrg 
) AS P
WHERE
    P.Distance< 5   
ORDER BY
    P.Distance;

使用计算列的 Having 子句查询错误

Query Error with Having Clause using computed column

sql

sql-server

gps

google-maps

latitude-longitude