由买买提看人间百态

boards

本页内容为未名空间相应帖子的节选和存档,一周内的贴子最多显示50字,超过一周显示500字 访问原贴
Programming版 - How to design a database model related to six degree of se (转载)
相关主题
问一道HIVE题 关于Efficiencyexample that C is more efficient than C++?
问一道面试题这个同学很神
system design question (转载)template metaprogramming 的问题
怎么efficiently实现next_combination?请问一个问题1
Windows下大家都用什么SqlConsole啊?how to implement binary tree efficiently?
question about using Hive parameter (转载)请教SQL大拿
Querying JSON in PostgresGoogle Index machine kills server
[转载] servlet调用sql 访问oracle的问题一个没想明白的问题
相关话题的讨论汇总
话题: design话题: six话题: database话题: related话题: degree
进入Programming版参与讨论
1 (共1页)
t**********s
发帖数: 930
1
【 以下文字转载自 Database 讨论区 】
发信人: tennisalways (tennisforever), 信区: Database
标 题: How to design a database model related to six degree of separation?
发信站: BBS 未名空间站 (Tue Jul 31 14:43:18 2007)
I am trying to design a database model related to the small world (or six
degree of separation) phenomenon.
With this design, I should be able to write two queries efficiently:
a) How many degrees of separation are there between two people.
(assuming they are connected). You may assume that you do not ha
1 (共1页)
进入Programming版参与讨论
相关主题
一个没想明白的问题Windows下大家都用什么SqlConsole啊?
帮忙看看jsp里的分页question about using Hive parameter (转载)
emacs里能不能从后往前的query-replace? (转载)Querying JSON in Postgres
MySQL COUNT() 问题.[转载] servlet调用sql 访问oracle的问题
问一道HIVE题 关于Efficiencyexample that C is more efficient than C++?
问一道面试题这个同学很神
system design question (转载)template metaprogramming 的问题
怎么efficiently实现next_combination?请问一个问题1
相关话题的讨论汇总
话题: design话题: six话题: database话题: related话题: degree