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Office在线预览及PDF在线预览的实现方式大集合 - 更多技术 - 清泛网 - 专注...

...是要硬盘空间呢还是要CPU的资源。 参考链接: http://www.cnblogs.com/expectszc/archive/2012/04/04/2432149.html http://www.cnblogs.com/liuning8023/archive/2013/03/04/2943482.html http://www.cxyclub.cn/n/29549/ 非微软方:没有微软的Office软件可安装,只能用第...
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What's the $unwind operator in MongoDB?

...rious operation like sorting, searcing etc. To know more about $unwind : https://docs.mongodb.com/manual/reference/operator/aggregation/unwind/ To know more about aggregation : https://docs.mongodb.com/manual/reference/operator/aggregation-pipeline/ ...
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Apache Kafka vs Apache Storm

...nto various sources and sinks (destinations) of data. Announcement blog - https://www.confluent.io/blog/introducing-kafka-streams-stream-processing-made-simple/ Current Apache documentation - https://kafka.apache.org/documentation/streams/ In 0.11 Kafka the stream processing functionality was fur...
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Code Golf: Collatz Conjecture

... Befunge &>:.:1-| >3*^ @ |%2: < v>2/>+ share edited Mar 5 '10 at 18:21 ...
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Visual SVN 安装及客户端使用 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...务器端】 1.VisualSVN Server,最新版本可以在这里下载: https://www.visualsvn.com/downloads/ 下载后,运行 VisualSVN-Server-1.6.1.msi 程序,点击Next,下面的截图顺序即为安装步骤: 图1: 图2: 注意:Server Port那里,默认端口有80/81/8080三...
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How do I create a unique constraint that also allows nulls?

...s some issues with it such as the requirement of using SCHEMABINDING. Have fun adding a new column to your base table (you'll at minimum have to drop the index, and then drop the view or alter the view to not be schema bound). See the full (long) list of requirements for creating an indexed view in ...
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How to empty a Heroku database

... The current, ie. 2017 way to do this is: heroku pg:reset DATABASE https://devcenter.heroku.com/articles/heroku-postgresql#pg-reset share | improve this answer | foll...
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Convert character to ASCII code in JavaScript

... Fun fact: you don’t really need the 0 (first argument value) — just "\n".charCodeAt() will do. – Mathias Bynens Oct 17 '11 at 9:40 ...
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How do I put an 'if clause' in an SQL string?

...tatements. and for more information you can refer official documents on https://technet.microsoft.com/en-us/library/bb522522(v=sql.105).aspx share | improve this answer | ...
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Load RSA public key from file

...eUploader: { brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...