大约有 40,000 项符合查询结果(耗时:0.0602秒) [XML]

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What is a “web service” in plain English?

... Simplified, non-technical explanation: A web serivce allows a PROGRAM to talk to a web page, instead of using your browser to open a web page. Example: I can go to maps.google.com, and type in my home address, and see a map of where I live in my browser. But what if you were...
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How to revert to origin's master branch's version of file

...hen: git checkout origin/master filename Assuming you want to blow away all commits from your branch (VERY DESTRUCTIVE): git reset --hard origin/master share | improve this answer | ...
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How do I find duplicates across multiple columns?

...simple and efficient means to locate unwanted repetition, whilst also list all affected rows and all wanted columns: SELECT t.* FROM ( SELECT s.* , COUNT(*) OVER (PARTITION BY s.name, s.city) AS qty FROM stuff s ) t WHERE t.qty > 1 ORDER BY t.name, t.city While most...
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Common programming mistakes for Clojure developers to avoid [closed]

...ix which used leading zeros to maintain proper rows and columns. Mathematically this is correct, since leading zero obviously don't alter the underlying value. Attempts to define a var with this matrix, however, would fail mysteriously with: java.lang.NumberFormatException: Invalid number: 08 whi...
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LINQ: When to use SingleOrDefault vs. FirstOrDefault() with filtering criteria

...amount of results but you state that you only want the first one. I personally find the semantics very different and using the appropriate one, depending on the expected results, improves readability. share | ...
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Why is using the JavaScript eval function a bad idea?

The eval function is a powerful and easy way to dynamically generate code, so what are the caveats? 26 Answers ...
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What are the alternatives now that the Google web search API has been deprecated? [closed]

... From the TOS: "You specifically agree not to access (or attempt to access) any of the Services through any automated means (including use of scripts or web crawlers)..." – ændrük Mar 6 '11 at 17:53 ...
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Why do we need boxing and unboxing in C#?

... Why To have a unified type system and allow value types to have a completely different representation of their underlying data from the way that reference types represent their underlying data (e.g., an int is just a bucket of thirty-two bits which is completely ...
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Write a function that returns the longest palindrome in a given string

... When someone goes on Stack Overflow, the question "answer" should actually contain an answer. Not just a bunch of directions towards the answer.. – Erik Philips Oct 22 '18 at 17:16 ...
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ORA-12505, TNS:listener does not currently know of SID given in connect descriptor

I have installed Oracle 11g Express Edition Release 2 in my windows 7 64 bit OS and tried to execute JDBC program, then I got the following error: ...