大约有 40,000 项符合查询结果(耗时:0.0587秒) [XML]

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List of tables, db schema, dump etc using the Python sqlite3 API

...te("SELECT name FROM sqlite_master WHERE type='table';") print(cursor.fetchall()) Watch out for my other answer. There is a much faster way using pandas. share | improve this answer | ...
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jQuery .val change doesn't change input value

... This is totally correct, by using setAttribute or jQuery's attr you will also affect the DOM element's value: jsfiddle.net/a8SxF/1 – TheZ Aug 8 '12 at 21:58 ...
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What are the “standard unambiguous date” formats for string-to-date conversion in R?

...te (+1). However, the error message "standard unambiguous format" is ironically ambiguous, to which the 23 previous questions attest. A more direct error message like, "format not recognized, see documentation" might improve user experience. Also, I don't believe "01/01/2000" is ISO-8601 ("2000-01-0...
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Why do x86-64 systems have only a 48 bit virtual address space?

... Because that's all that's needed. 48 bits give you an address space of 256 terabyte. That's a lot. You're not going to see a system which needs more than that any time soon. So CPU manufacturers took a shortcut. They use an instruction set...
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API vs. Webservice [closed]

...s don't necessarily use HTTP, but this is almost always the case and is usually assumed unless mentioned otherwise. For examples of web services specifically, see SOAP, REST, and XML-RPC. For an example of another type of API, one written in C for use on a local machine, see the Linux Kernel API. ...
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SQL WHERE.. IN clause multiple columns

... or more generally SELECT * FROM table INNER JOIN otherTable ON ( table.x = otherTable.a AND table.y = otherTable.b) – ala Jul 16 '09 at 7:56 ...
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How to compute the similarity between two text documents?

... If I were to average all of the values outside of the diagonal of 1's, would that be a sound way of getting a single score of how similar the four documents are to each other? If not, is there a better way of determining overall similarity betwe...
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What are good message queue options for nodejs? [closed]

Looking to use a message queue in a small web app I'm building with node.js. I looked at resque but not sure that's appropriate. The goal is to push notifications to clients based on backend and other client actions with socketio. I could do this with just socketio but I thought maybe a proper messa...
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Why are data transfer objects (DTOs) an anti-pattern?

... Some projects have all data twice. Once as domain objects, and once as data transfer objects. This duplication has a huge cost, so the architecture needs to get a huge benefit from this separation to be worth it. ...
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JavaScript: Class.method vs. Class.prototype.method

... are extending the constructor function prototype, it will be available to all the object instances created with the new keyword, and the context within that function (the this keyword) will refer to the actual object instance where you call it. Consider this example: // constructor function funct...