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When should I use a NoSQL database instead of a relational database? Is it okay to use both on the s

What are the advantages of using NoSQL databases? I've read a lot about them lately, but I'm still unsure why I would want to implement one, and under what circumstances I would want to use one. ...
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Java - get pixel array from image

...ring[] args) throws IOException { BufferedImage hugeImage = ImageIO.read(PerformanceTest.class.getResource("12000X12000.jpg")); System.out.println("Testing convertTo2DUsingGetRGB:"); for (int i = 0; i < 10; i++) { long startTime = System.nanoTime(); int[][] r...
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How to get relative path from absolute path

...athTo(...) which I find easier to understand than an int where you need to read the documentation on what the int means. – Daniel Rose Jun 22 '10 at 6:32 4 ...
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Factors in R: more than an annoyance?

...n be a pain, but my theory is that 90% of why they're a pain is because in read.table and read.csv, the argument stringsAsFactors = TRUE by default (and most users miss this subtlety). I say they are useful because model fitting packages like lme4 use factors and ordered factors to differentially fi...
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How to set the current working directory? [duplicate]

... –1: This answer is not useful — because it was already posted six years ago. – jwodder Jan 24 '16 at 3:47 6 ...
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Best way to “negate” an instanceof

...like this solution since I am not required to build up a metal stack while reading it! – JaM Aug 9 '19 at 12:59 add a comment  |  ...
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When do you use Java's @Override annotation and why?

... One very real downside is that you make the code harder to read by littering it with snails. Perhaps this is a fault of my IDE, but I have experienced this myself. – treat your mods well Apr 28 '10 at 20:15 ...
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Why doesn't Java allow overriding of static methods?

...osts $5." "Okay, I know the price, but I was asking about the color." "I already told you the price!" etc.) – Jay Feb 8 '10 at 20:29 6 ...
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Why can't C compilers rearrange struct members to eliminate alignment padding? [duplicate]

...lds. Reordering the fields would make it impossible for C code to directly read or write the header (assuming the ZIP implementation would like to access the data directly): struct __attribute__((__packed__)) LocalFileHeader { uint32_t signature; uint16_t minVersion, flag, method, modTime, ...
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SQL left join vs multiple tables on FROM line?

...ed in MS SQLServer and for good reason: Not only does it make it harder to read, but it doesn't do what people think it does and it is NOT the same as a similarly looking LEFT JOIN. The (+) syntax is unfamiliar to me; what SQL implementation does that? – Euro Micelli ...