摘要:
1. show index 显示索引show index from users2. 添加keyalter table users add key key_name (name(4))"key_name"是索引名字可以不写,默认是列名。4是以前4个字符来索引,一定要写。alter table user... 阅读全文
摘要:
Week1 : Introduction1A Why Social Network Analysis?What are networks? Networks are sets of nodes connected by edgesgoal: characterize network structure¤ Are nodes connected through the network? (week )1¤ How far apart are they? (week 1)¤ Are some nodes more important due to their posi 阅读全文