06 2015 档案

inner join、left join、right join、full join
摘要：A表a1　b1 c1 01数学9502语文9003英语80B表a2 b2 01张三02李四04王五SQL语句：select A.*,B.* from A inner join B on (A.a1=B.a2)结果：a1 b1 c1 a2 b2 01数学9501张三02语文9002李... 阅读全文
posted @ 2015-06-24 09:48 lishidefengchen 编辑

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