实际上，原子坐标和表是一些非层次数据，而对于这类数据，xml并非最佳选择。

In fact, the atom coordinates and labels are non-hierarchical data for which XML is not the best choice.

youdao

如果可能更新坐标列，但是源表包含一个时间戳列，其中记录了每行最后一次更新的时间，那么仍然可以避免批量复制。

If updates to the coordinate columns are possible, you may still be able to avoid bulk copies if the source table contains a time stamp column that records the time of last update for each row.

youdao

查看示例内容表，可以看到国家的地理坐标和面积总是采用相同的格式。

Looking at the sample contents table, you can see that a country's geographic coordinates and area are always given in the same format.

youdao