大约有 40,000 项符合查询结果(耗时:0.0281秒) [XML]

https://stackoverflow.com/ques... 

How do I see all foreign keys to a table or column?

In MySQL, how do I get a list of all foreign key constraints pointing to a particular table? a particular column? This is the same thing as this Oracle question , but for MySQL. ...
https://stackoverflow.com/ques... 

Could not locate Gemfile

... thor (0.15.4) Using railties (3.2.11) Using jquery-rails (2.0.3) Using mysql2 (0.3.11) Using net-ldap (0.3.1) Using ruby-openid (2.1.8) Using rack-openid (1.3.1) Using bundler (1.2.3) Using rails (3.2.11) Using rmagick (2.13.1) Your bundle i ...
https://www.tsingfun.com/it/bigdata_ai/343.html 

搭建高可用mongodb集群(四)—— 分片 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术

...常是 2个副本 + 1个仲裁。 说了这么多,还是来实战一下如何搭建高可用的mongodb集群: 首先确定各个组件的数量,mongos 3个, config server 3个,数据分3片 shard server 3个,每个shard 有一个副本一个仲裁也就是 3 * 2 = 6 个,总共需要...
https://www.tsingfun.com/it/bigdata_ai/341.html 

搭建高可用mongodb集群(二)—— 副本集 - 大数据 & AI - 清泛网 - 专注C/...

...切换连接?目前需要手工切换。 主节点的读写压力过大如何解决? 从节点每个上面的数据都是对数据库全量拷贝,从节点压力会不会过大? 数据压力大到机器支撑不了的时候能否做到自动扩展? 这篇文章看完这些问题就...
https://www.tsingfun.com/it/tech/1055.html 

Nginx缓存解决方案:SRCache - 更多技术 - 清泛网 - 专注C/C++及内核技术

....shared, key, value, expire) end return status 最后一个问题:如何判断缓存是否生效了?试试下面的命令: shell> curl -v "http://foo.com/test?x=123&y=abc" < X-SRCache-Fetch-Status: HIT < X-SRCache-Store-Status: BYPASS 目前我主要用srcache来缓存一些接口...
https://stackoverflow.com/ques... 

Reference - What does this error mean in PHP?

... Warning: mysql_fetch_array() expects parameter 1 to be resource, boolean given First and foremost: Please, don't use mysql_* functions in new code. They are no longer maintained and are officially deprecated. See the red box? Lea...
https://stackoverflow.com/ques... 

Can I mix MySQL APIs in PHP?

I have searched the net and so far what I have seen is that you can use mysql_ and mysqli_ together meaning: 4 Answers ...
https://stackoverflow.com/ques... 

Escaping single quote in PHP when inserting into MySQL [duplicate]

... You should be escaping each of these strings (in both snippets) with mysql_real_escape_string(). http://us3.php.net/mysql-real-escape-string The reason your two queries are behaving differently is likely because you have magic_quotes_gpc turned on (which you should know is a bad idea). This...
https://www.tsingfun.com/it/pr... 

Quora如何在快速开发中保持高品质代码 - 项目管理 - 清泛网 - 专注C/C++及内核技术

Quora如何在快速开发中保持高品质代码作者:Quora工程主管Nikhil Garg原文链接:https: engineering.quora.com Moving-Fast-With-High-Code-Quality译者:张婉莹高质量的代码...作者:Quora工程主管Nikhil Garg 原文链接:https://engineering.quora.com/Moving-Fas...
https://stackoverflow.com/ques... 

Best way to test if a row exists in a MySQL table

I'm trying to find out if a row exists in a table. Using MySQL, is it better to do a query like this: 12 Answers ...