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Joins are for lazy people?

... recently had a discussion with another developer who claimed to me that JOINs (SQL) are useless. This is technically true but he added that using joins is less efficient than making several requests and link tables in the code (C# or Java). ...
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Can I get JSON to load into an OrderedDict?

Ok so I can use an OrderedDict in json.dump . That is, an OrderedDict can be used as an input to JSON. 6 Answers ...
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Why is my variable unaltered after I modify it inside of a function? - Asynchronous code reference

Given the following examples, why is outerScopeVar undefined in all cases? 6 Answers ...
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Finding all cycles in a directed graph

How can I find (iterate over) ALL the cycles in a directed graph from/to a given node? 17 Answers ...
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Case insensitive comparison of strings in shell script

The == operator is used to compare two strings in shell script. However, I want to compare two strings ignoring case, how can it be done? Is there any standard command for this? ...
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.gitignore for Visual Studio Projects and Solutions

Which files should I include in .gitignore when using Git in conjunction with Visual Studio Solutions ( .sln ) and Projects? ...
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Replace all elements of Python NumPy Array that are greater than some value

I have a 2D NumPy array and would like to replace all values in it greater than or equal to a threshold T with 255.0. To my knowledge, the most fundamental way would be: ...
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Apk location in New Android Studio

I started using new Android Studio and cant find the APK of the application in IDE,where it actually locates? 31 Answers ...
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Batch file: Find if substring is in string (not in a file)

In a batch file, I have a string abcdefg . I want to check if bcd is in the string. 10 Answers ...
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How do I measure time elapsed in Java? [duplicate]

I want to have something like this: 15 Answers 15 ...