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Pulse Secure解决方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...多厂商“解决方案”。 我们将根据客户实践经验来介绍如何为特定的部署环境选择正确的接入控制解决方案,以便最好地满足您的要求。 全面的接入控制 最新的接入控制技术追求将两个不同的概念结合在一起──最终用户身...
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Is there any performance gain in indexing a boolean field?

...e an index, if you have too many records it doesn't use the index anyways. MySQL not using index when checking = 1 , but using it with = 0 share | improve this answer | follo...
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What is SQL injection? [duplicate]

...d queries, or applying your language/toolkit's escaping functions (such as mysql_real_escape_string() in PHP). Once you understand SQL Injection you'll get the joke behind this cartoon. share | imp...
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How to pull a random record using Django's ORM?

...e backend you're using." - any experience on diffrent DB backends? (sqlite/mysql/postgres)? – kender Jun 8 '09 at 9:37 4 ...
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How to implement the activity stream in a social network

...s to browse far back in time (if you even offer this) I use a plain old MySQL table for dealing with about 15 million activities. It looks something like this: id user_id (int) activity_type (tinyint) source_id (int) parent_id (int) parent_type (tinyint) time ...
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Deep Learning(深度学习)学习笔记整理系列之(四) - 大数据 & AI - 清泛...

...,这个AutoEncoder还不能用来分类数据,因为它还没有学习如何去连结一个输入和一个类。它只是学会了如何去重构或者复现它的输入而已。或者说,它只是学习获得了一个可以良好代表输入的特征,这个特征可以最大程度上代表...
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SQL WHERE condition is not equal to?

...uple of times.. but it didn't seem to work until I realized that DELETE in MySQL does not use the * .. – Frank Vilea May 27 '11 at 19:59 ...
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Stack Overflow:StackExchange网络不同主题网站的”祖父“ - 更多技术 - ...

...者是否有该领域的冷门知识,而不是他们姓甚名谁、长得如何或者有没有名气。 问:StackExchange最近公开批评了谷歌,是吗? 答:与我共同创业的杰夫•阿特伍德就此发表了文章,详细地指出了谷歌面临的主要问题。许多网...
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Good Free Alternative To MS Access [closed]

...ess, you generally want a database server engine, like MS SQL, Postgresql, MySQL, Oracle, or their brethren. At the same time, those server engines are rarely if ever appropriate for a single-user desktop application. share...
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泡在Stack Overflow答题30天 - 创意 - 清泛网 - 专注C/C++及内核技术

...tack Overflow答题30天想法的萌芽如果非要总结下我多年来是如何使用Stack Overflow的话,我的答案就是:打开网页,搜索问题,查看Stack Overflow的搜索结果,参...想法的萌芽 如果非要总结下我多年来是如何使用Stack Overflow的话,我的...