我想用php+mysql设计一个 家谱树网站，遇到的难题
问题
1：家谱数据表该如何设计，是家族成员user表(uid name sex fatherid)和relationship(uid motherid fatherid)关系表分开，还是合在一张表？
2.怎样取出家谱表中的 uid对应的 父亲 母亲 兄弟 子女节点来？？
------解决思路----------------------
个人表：保存如姓名、出生年月、主要事迹等只有关个人的记录，建立一个唯一ID为Key
关系表：用个人ID建立一个与其它个人的关系表，主要用于记录个人之间的有关数据
以上供参考
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