大约有 42,000 项符合查询结果(耗时:0.0415秒) [XML]

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What are good alternatives to SQL (the language)? [closed]

I occasionally hear things about how SQL sucks and it's not a good language, but I never really hear much about alternatives to it. So, are other good languages that serve the same purpose (database access) and what makes them better than SQL? Are there any good databases that use this alternative l...
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Import package.* vs import package.SpecificType [duplicate]

Would it suppose any difference regarding overhead to write an import loading all the types within one package ( import java.* ); than just a specific type (i.e. import java.lang.ClassLoader )? Would the second one be a more advisable way to use than the other one? ...
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Calling clojure from java

Most of the top google hits for "calling clojure from java" are outdated and recommend using clojure.lang.RT to compile the source code. Could you help with a clear explanation of how to call Clojure from Java assuming you have already built a jar from the Clojure project and included it in the cl...
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How do I alter the position of a column in a PostgreSQL database table?

I've tried the following, but I was unsuccessful: 9 Answers 9 ...
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How do I sort a dictionary by value?

I have a dictionary of values read from two fields in a database: a string field and a numeric field. The string field is unique, so that is the key of the dictionary. ...
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Find the index of a dict within a list, by matching the dict's value

I have a list of dicts: 9 Answers 9 ...
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Iterate all files in a directory using a 'for' loop

How can I iterate over each file in a directory using a for loop? 17 Answers 17 ...
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How to generate a random string in Ruby

I'm currently generating an 8-character pseudo-random uppercase string for "A" .. "Z": 50 Answers ...
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What's the best name for a non-mutating “add” method on an immutable collection?

Sorry for the waffly title - if I could come up with a concise title, I wouldn't have to ask the question. 74 Answers ...
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Why do we need break after case statements?

Why doesn't the compiler automatically put break statements after each code block in the switch? Is it for historical reasons? When would you want multiple code blocks to execute? ...