大约有 42,000 项符合查询结果(耗时:0.0632秒) [XML]

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What are OLTP and OLAP. What is the difference between them?

Actually what do they mean? All articles I find about them don't give me an idea, or my knowledge is too insufficient to understand it. ...
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What is Gradle in Android Studio?

Gradle is a bit confusing to me, and also for any new Android developer. Can anyone explain what Gradle in Android Studio is and what its purpose is? Why is it included in Android Studio? ...
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How can I check if a program exists from a Bash script?

How would I validate that a program exists, in a way that will either return an error and exit, or continue with the script? ...
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A worthy developer-friendly alternative to PayPal [closed]

I understand payments are a tricky thing, but I'm yet to find a worthy alternative to PayPal. I want to change from PayPal because I think they are expensive and it doesn't work in all countries. Furthermore, I think that the API is sufficient, but could be better. The API documentation, however, is...
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Does Java SE 8 have Pairs or Tuples?

I am playing around with lazy functional operations in Java SE 8, and I want to map an index i to a pair / tuple (i, value[i]) , then filter based on the second value[i] element, and finally output just the indices. ...
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How do you compare two version Strings in Java?

Is there a standard idiom for comparing version numbers? I can't just use a straight String compareTo because I don't know yet what the maximum number of point releases there will be. I need to compare the versions and have the following hold true: ...
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RSpec vs Cucumber (RSpec stories) [closed]

When should I use specs for Rails application and when Cucumber (former rspec-stories)? I know how both work and actively use specs, of course. But it still feels weird to use Cucumber. My current view on this, is that it's convenient to use Cucumber when you're implementing application for the clie...
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Using backticks around field names

After reading a couple of answers and comments on some SQL questions here, and also hearing that a friend of mine works at a place which has a policy which bans them, I'm wondering if there's anything wrong with using backticks around field names in MySQL. ...
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How do I pass the value (not the reference) of a JS variable to a function? [duplicate]

Here is a simplified version of something I'm trying to run: 6 Answers 6 ...
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How do I move forward and backward between commits in git?

I am doing a git bisect and after arriving to the problematic commit, I am now trying to get a step forward/backward to make sure I am in the right one. ...