大约有 42,000 项符合查询结果(耗时:0.0552秒) [XML]

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Multiple Indexes vs Multi-Column Indexes

I've just been adding an Index to a table in SQL Server 2005 and it got me thinking. What is the difference between creating 1 index and defining multiple columns over having 1 index per column you want to index. ...
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What is InputStream & Output Stream? Why and when do we use them?

Someone explain to me what InputStream and OutputStream are? 8 Answers 8 ...
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JavaScript string encryption and decryption?

I'm interested in building a small app for personal use that will encrypt and decrypt information on the client side using JavaScript. The encrypted information will be stored in a database on a server, but never the decrypted version. ...
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What is an .inc and why use it?

...at is the meaning of .inc? What it is used for? What are the disadvantages and advantages of using it? 8 Answers ...
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startsWith() and endsWith() functions in PHP

How can I write two functions that would take a string and return if it starts with the specified character/string or ends with it? ...
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Test if remote TCP port is open from a shell script

I'm looking for a quick and simple method for properly testing if a given TCP port is open on a remote server, from inside a Shell script. ...
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What is the purpose of .PHONY in a Makefile?

...e used to build files from other files. Make assumes its target is a file, and this makes writing Makefiles relatively easy: foo: bar create_one_from_the_other foo bar However, sometimes you want your Makefile to run commands that do not represent physical files in the file system. Good example...
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Xcode 5 - “iOS Simulator failed to install application” every time I switch simulators

...t of an application from iOS 7.0 to a release prior to iOS 7.0, building and running the application may fail with the message “iOS Simulator failed to install the application.” Go to the iOS home screen, click and hold the application icon, then tap the hovering “X” button to ...
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Using the “final” modifier whenever applicable in Java [closed]

...eywords in your code, but pretty soon you'll stop noticing the word itself and will simply think, that-thing-will-never-change-from-this-point-on (you can take it from me ;-) I think it's good practice. I am not using it all the time, but when I can and it makes sense to label something final I'll ...
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How to resolve “You need to have Ruby and Sass installed and in your PATH for this task to work” War

... Ok I got it. I just had to install Sass using gem install sass and now everything is fine...couldn't be easier. share | improve this answer | follow ...