Whether derived from address information, acquired by GPS devices, or otherwise generated, many databases contain geographic coordinates of point locations as separate numeric columns in a table.
无论是从地址信息中推导出来的、由GPS设备获得的还是以其他方式生成的,许多数据库都包含点位置的地理坐标,这些信息在数据库中保存为单独的数字列。
Whether derived from address information, acquired by GPS devices, or otherwise generated, many databases contain geographic coordinates of point locations as separate numeric columns in a table.
无论是从地址信息中推导出来的、由GPS设备获得的还是以其他方式生成的,许多数据库都包含点位置的地理坐标,这些信息在数据库中保存为单独的数字列。
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