我正在尝试从查询中的另一个表运行子查询
我的查询如下：
SELECT *, (6371000 * acos(cos(radians(select point_oi.lng
from point_oi
where point_oi.name like '%Main Square%')
)
* cos(radians(restaurants.lat)) * cos(radians(restaurants.lng)
- radians(select point_oi.lng
from point_oi
where point_oi.name like '%Main Square%'
))
+ sin(radians(select point_oi.lng
from point_oi
where point_oi.name like '%Main Square%'))
* sin(radians(restaurants.lat)))) AS distance
FROM restaurants
HAVING distance < 500;
当我运行查询时，我收到一条错误消息，提示附近存在错误select。我想使用嵌套的选择查询从另一个表中获取经纬度，而不是对值进行硬编码。我怎样才能解决这个问题。
感谢您的帮助
如果suquery返回的行多于有错误的行，则不应使用子查询来获取point_poi lat，lnt。
尝试使用适当的联接（在这种情况下，您可以使用point_poi和可以使用交叉联接的餐厅之间没有关系的fatc）
SELECT restaurants.*,
(6371000 * acos(cos(radians(point_oi.lng ))
* cos(radians(restaurants.lat)) * cos(radians(restaurants.lng)
- radians(point_oi.lng ))
+ sin(radians(point_oi.lng ))
* sin(radians(restaurants.lat)))) AS distance
FROM restaurants
CROSS JOIN point_oi
WHERE point_oi.name like '%Main Square%'
AND (6371000 * acos(cos(radians(point_oi.lng ))
* cos(radians(restaurants.lat)) * cos(radians(restaurants.lng)
- radians(point_oi.lng ))
+ sin(radians(point_oi.lng ))
* sin(radians(restaurants.lat)))) < 500;
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