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PHP + MySQL transactions examples

I really haven't found normal example of PHP file where MySQL transactions are being used. Can you show me simple example of that? ...
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界面布局组件 · App Inventor 2 中文网

... 属性 水平对齐 一个数字,用于表示水平布局的内容如何水平对齐。选择分别是: 1 (左对齐) 2 (右对齐) 3 (水平居中) 如果水平布局的宽度是自动,则对齐方式无效。 垂直对齐 一个数字,用于表...
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Swapping column values in MySQL

I have a MySQL table with coordinates, the column names are X and Y. Now I want to swap the column values in this table, so that X becomes Y and Y becomes X. The most apparent solution would be renaming the columns, but I don't want to make structure changes since I don't necessarily have permission...
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Comparison of full text search engine - Lucene, Sphinx, Postgresql, MySQL?

...some benchmarks. Could be useful, I guess. I've not plumbed the depths of MySQL's full-text search, but I know it doesn't compete speed-wise nor feature-wise with Sphinx, Lucene or Solr. share | im...
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How do I specify unique constraint for multiple columns in MySQL?

... For those people using MySQL workbench: go to the Indexes tab and select UNIQUE as your type. Give your index a name and check the appropriate columns under the section "Index Columns" – Pakman Jun 3 '13 at 2...
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如何判断GIF是否是动图 - C/C++ - 清泛网 - 专注C/C++及内核技术

如何判断GIF是否是动图用记事本(或其他文本工具)打开图像文件,若是单图像会发现JFIF的标识,若为动图,则会出现GIF。charstrGIF[3];memcpy( strGIF, pbyImag...用记事本(或其他文本工具)打开图像文件,若是单图像会发现JFIF的标识...
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手把手教你如何渡过初创瓶颈期 - 资讯 - 清泛网 - 专注C/C++及内核技术

手把手教你如何渡过初创瓶颈期创业圈中,最难的就是从零到一,也就是从零开始的第一年。根据彭博通讯社的一份数据,创新企业有 80% 在创业的头 18 个月里宣告失败,... 创业圈中,最难的就是“从零到一”,也就是从零开...
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月薪2万招“程序员塑形师”,是炒作还是IT男需求? - 杂谈 - 清泛网 - 专注...

...:程序猿怎样追女孩子?程序猿找对象格外难么?程序猿如何接触到异性?程序员如何克服社交恐惧症…… 甚至还有不少关于如何摆脱“屌丝”气质的提问,如”如何提升程序员的气质“,”如何让程序员变得更阳光“等,可见...
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服务器启用了TRACE Method如何关闭? - 更多技术 - 清泛网 - 专注C/C++及内核技术

服务器启用了TRACE Method如何关闭?TRACE和TRACK是用来调试web服务器连接的HTTP方式。支持该方式的服务器存在跨站脚本漏洞,通常在描述各种浏览器缺陷的时候,把 "Cross-Site-Tracing "简称为XST。攻击者可以利用此漏洞欺骗合法用...
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如何诊断CDN故障 - 更多技术 - 清泛网 - 专注C/C++及内核技术

如何诊断CDN故障某项目使用CDN做文件下载服务,最近不时有网友反馈下载出错,因为CDN是第三方提供的,且节点众多,所以诊断起来有点麻烦,必须想想招儿。首...某项目使用CDN做文件下载服务,最近不时有网友反馈下载出错,...