V2EX jjdd
jjdd

jjdd

V2EX member #50413, joined on 2013-11-23 23:10:37 +08:00
jjdd's recent replies
May 26, 2015
Replied to a topic by gdwest 健康 有种晚安叫失眠
@FifiLyu 撸完就好了 哈哈
谁能推荐一下呢?
@mynameisny 应该是可以的,不过我当时是注册的000webhost,你这个应该是它的类似产品: http://www.freehao123.com/hostinger/
最开始学php时用的免费空间,感觉是免费空间中最良心的
顶!非常有意义的节目,如果有捐助入口个人愿意捐助
Sep 20, 2014
Replied to a topic by F2Sky 问与答 主站和备份站的搜索权重问题
为啥备份到网易,直接多处备份数据库撒
可以直接跟上司沟通一下,表达你的真实想法,不行就走人
@geew 你这样book_tag表就是有冗余字段了,“在tag表通过tag_id查出tag_name”这一步如果走缓存效率也不低
1,在book_tag表中通过tag_id查出所以的book_id
2,要查每本书的tag_name,在book_tag表通过book_id查出所有的tag_id,再在tag表通过tag_id查出tag_name

book_tag表里面存tag_name字段干嘛?
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