我是 Oracle Spatial 的新手,我正在尝试实现一项服务,该服务将从地图中获取坐标,并搜索我们的数据库以查找与该地图视图相交的任何几何图形。我在大多数情况下工作得很好,但是当我把地图缩小到我们可以看到整个世界的地方时,Oracle 搜索根本不返回任何记录。当我在几何表中有超过 20 条记录时,有人可以看到为什么以下 sql 会返回 0 条记录:
select g.id, g.name, SDO_UTIL.to_kmlgeometry(g.geom) as kml from geography g
where SDO_RELATE(g.geom,
SDO_GEOMETRY(2003,8307,NULL,SDO_ELEM_INFO_ARRAY(1,1003,1),
SDO_ORDINATE_ARRAY(
-180,-90,
180,-90,
180,90,
-180,90
)),
'mask=ANYINTERACT') = 'TRUE';
插入数据库的几个示例记录:
INSERT INTO geography VALUES(
GEOGRAPHY_ID_SEQ.nextVal,
'd2',
SDO_GEOMETRY(
2003, -- 2d poly
8307,
NULL,
SDO_ELEM_INFO_ARRAY(1,1003,1), -- polygon
SDO_ORDINATE_ARRAY(-77.01204711074818,38.88772105792418,
-77.01200419540395,38.89196328335449,
-77.00831347579947,38.89249647861828,
-77.00827056045522,38.88768765356904,
-77.01204711074818,38.88772105792418)
)
);
INSERT INTO geography VALUES(
GEOGRAPHY_ID_SEQ.nextVal,
'd3',
SDO_GEOMETRY(
2003, -- 2d poly
8307,
NULL,
SDO_ELEM_INFO_ARRAY(1,1003,1), -- polygon
SDO_ORDINATE_ARRAY(-77.05552889816111,38.86892085934577,
-77.05329022237119,38.87065233921285,
-77.05467677541158,38.87288138804671,
-77.05786820241124,38.87248696633578,
-77.05840989692072,38.87006762135151,
-77.05552889816111,38.86892085934577)
)
);
任何帮助将不胜感激。谢谢!