q = models.UserInfo.objects.all() select * from userinfo select * from userinfo inner join usertype on ... for row in q: print(row.name,row.ut.title) select_related: 查询主动做连表 q = models.UserInfo.objects.all().select_related('ut','gp') select * from us
Robert Love, Google Software Engineer and Manager on Web Search. Upvoted by Kah Seng Tay, I was the Head TA for a class taught in Java at MIT. I used… Robert has 10+ answers in Google Engineering. Man, I cannot imagine writing let alone maintaining a
一.下面先交代一下测试云主机 cpu: root@alexknight:/tmp/webbench-1.5# cat /proc/cpuinfo |grep model model : model name : Intel(R) Core(TM) i5-.40GHz root@alexknight:/tmp/webbench-1.5# mem: root@alexknight:/tmp/webbench-1.5# free -m total used free shared buffers ca
现在有一张记录用户信息的UserInfo数据表,表中记录了10个用户的姓名,呢称,年龄,工作等信息. models文件 from django.db import models class Job(models.Model): title=models.CharField(max_length=32) class UserInfo(models.Model): username=models.CharField(max_length=32) nickname=models.CharField(m