大约有 8,000 项符合查询结果(耗时:0.0240秒) [XML]

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How should I store GUID in MySQL tables?

... For the curious, these functions are superior to just UNHEX(REPLACE(UUID(),'-','')) because it arranges the bits in an order that will perform better in a clustered index. – Slashterix Feb 2 '14 at 1:28 ...
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How to change Vagrant 'default' machine name?

... change when you restart. (3) The project is mapped to a VirtualBox VM via UUID, which is stored in PROJECT_ROOT/.vagrant/machines/default/virtualbox/id. This UUID is not visible in the VirtualBox GUI (virtualbox.org/ticket/6989), but you can use VBoxManage list vms on the command line. ...
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将Linux代码移植到Windows简单方法 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术

...去。 利用这些资料,并通过相关工具比如sourceinsight来搜索Cygwin本身源代码,Link问题并不难处理。只是有可能在处理link问题过程中会回复到上面问题,编译不过。这个时候代码修改还是一定要注意不要引入太多新...
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CDN(内容分发网络)技术原理 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...,直接使用被加速网站原有域名即可访问),又要在为指定网站提供加速服务同时降低对ICP影响,只要修改整个访问过程中域名解析部分,以实现透明加速服务,下面是CDN网络实现具体操作过程。   1)、作为ICP...
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Strings as Primary Keys in SQL Database [closed]

...t you should use. I would also say there are definitely times for GUID or UUID fields in databases where an autoincrement field would not work. – Ryan Guill Feb 5 '09 at 20:16 7 ...
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A complete solution to LOCALLY validate an in-app receipts and bundle receipts on iOS 7

.... From RMAppReceipt: - (BOOL)verifyReceiptHash { // TODO: Getting the uuid in Mac is different. See: https://developer.apple.com/library/content/releasenotes/General/ValidateAppStoreReceipt/Chapters/ValidateLocally.html#//apple_ref/doc/uid/TP40010573-CH1-SW5 NSUUID *uuid = [[UIDevice curren...
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搭建高可用mongodb集群(二)—— 副本集 - 大数据 & AI - 清泛网 - 专注C/...

...节点,但是可以投票,一般用于备份数据。 Delayed:可以指定一个时间延迟从primary节点同步数据。主要用于备份数据,如果实时同步,误删除数据马上同步到从节点,恢复又恢复不了。 Non-Voting:没有选举权secondary节点,纯...
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裁员!裁员!创业者们2016“寒冬大逃杀” - 资讯 - 清泛网 - 专注IT技能提升

...找工作也得降薪,大部分公司都在缩减成本。” 在百度搜索,关于“裁员”新闻有263,000篇,整整38页,其中30页是发生在2016年。 从理性上看,这是必然之举。一个美元基金合伙人对36氪说,前段时间他碰到自己投一个创...
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如何建立一套适合自己高胜算交易系统 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...。从而使交易者由于心理极度恐惧,在行情还没有到达指定止损位置时,就匆匆平仓出局。从而导致整个操作变形,或由于恐惧从而放弃一个原本良好操作系统。 交易是一种在收益和风险中寻求平衡学科。我们既不能...
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Exposing database IDs - security risk?

...is is the only one that should ever be exposed to the client. Using random UUIDs for these is a practical solution for assigning these surrogate keys, even though they aren't cryptographically secure. One place where cryptographically unpredictable identifiers is a necessity, however, is in session...