SQL地理纬度/经度距离计算

Question

我无法使用地理来计算使用我的表格格式的英里距离.

两个位置的纬度和经度并排:

id | A_Latitude | A_Longitude | B_Latitude | B_Longitude

我试图让的地步A,与点一起B,并返回之间的距离A,并B以英里.

我尝试了一些东西,包括类似的东西:

DECLARE @orig geography 
DECLARE @end geography
SELECT
@orig = geography::Point(A_LATITUDE, A_LONGITUDE, 4326) 
,@end = geography::Point(B_LATITUDE, B_LONGITUDE, 4326) 
FROM table1
SELECT 
    ROUND(@END.STDistance(@ORIG)/1609.344,2) AS MILES
    ,@END.STDistance(@ORIG) AS METERS
    ,table1.*
FROM table1;

我在所有行中获得里程和米的重复值.任何人都可以建议我应该如何构建此查询以获取我正在寻找的内容？

编辑:谢谢SQL冲浪!

WITH X AS 
(SELECT 
 geography::Point(A_LATITUDE, A_LONGITUDE, 4326) A
,geography::Point(B_LATITUDE, B_LONGITUDE, 4326) B
,ID
FROM TABLE1)

SELECT 
ROUND(X.B.STDistance(X.A)/1609.344,2) AS MILES
,X.B.STDistance(X.A) AS METERS
,T.*
FROM TABLE1 T
LEFT JOIN X ON T.ID = X.ID

Answer 1

这是我要做的:

WITH X AS 
(
   SELECT 
      geography::Point(A_LATITUDE, A_LONGITUDE, 4326) A
     ,geography::Point(B_LATITUDE, B_LONGITUDE, 4326) B
     ,*
   FROM TABLE1
)

SELECT 
   ROUND(B.STDistance(A)/1609.344, 2) AS MILES
   ,B.STDistance(X.A) AS METERS
   ,*
FROM X

如果您考虑经常(并且在运行中)这样做,请考虑将计算列添加到表中,不仅是地理类型,还包括它们之间的距离.那时,它只是表格中的一个简单查询!