oracle DB中具有纬度和经度的两点之间的距离

Question

我需要通过 Pl SQL 查询计算两个位置之间的距离。我尝试了一些 Qry 但没有得到它。

为此我们在SQL中使用查询如下

SELECT ROUND(geography::Point(cast('19.2806118' as float),cast('72.8757395' as float) , 
4326).STDistance(geography::Point(cast('19.4482006' as float),
cast('72.7912511' as float), 4326))/1000,1) DIST

结果：20.6

为了在 ORACLE Db 中进行相同的计算，我在互联网上找到了如下解决方案

select sdo_geom.sdo_distance(sdo_geometry(2001,4326,null,sdo_elem_info_array(1, 1, 1),
sdo_ordinate_array( 19.2806118,72.8757395)),sdo_geometry(2001,4326, null,sdo_elem_info_array(1, 1, 
1),sdo_ordinate_array( 19.4482006,72.7912511)),1,'unit=KM') distance_km from dual

结果：10.9271..

请建议在我获得 MS 时给我 KM 结果的方法 SQL

Answer 1

Please suggest the method which will give me result in KM as I am getting MS SQL

交换参数顺序 19.2806118,72.8757395 到 72.8757395,19.2806118

select sdo_geom.sdo_distance(
   sdo_geometry(2001,4326,null,sdo_elem_info_array(1, 1, 1),
                 sdo_ordinate_array(72.8757395,19.2806118)),
   sdo_geometry(2001,4326, null,sdo_elem_info_array(1, 1,1),
                 sdo_ordinate_array(72.7912511,19.4482006))
   ,1
   ,'unit=KM') distance_km 
from dual;

产生与 SQL 完全相同的结果服务器：20.5657053685075

db<>fiddle demo Oracle
db<>fiddle demo SQL Server

或使用 sdo_point:

SELECT sdo_geom.sdo_distance(
         sdo_geometry(2001, 4326,
                sdo_point_type(72.8757395, 19.2806118, NULL), NULL, NULL),
          sdo_geometry(2001, 4326,
               sdo_point_type(72.7912511, 19.4482006, NULL), NULL, NULL),
               1, 'unit=KM') distance_in_m
from DUAL;

SQL 服务器：geography::Point ( Lat, Long, SRID )

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