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MySQL Query - Records between Today and Last 30 Days

... 297 You need to apply DATE_FORMAT in the SELECT clause, not the WHERE clause: SELECT DATE_FORMAT...
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OpenShift rhc setup using multiple accounts

...e OR rhc app create <appname> <cartridge> [-l <login1/login2>] 2) Run "rhc setup -l LOGIN" between the sessions. Once done managing apps from one account you can end the session for it by running "rhc account logout". rhc setup -l <login1> # First account's login rhc app...
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xUnit : Assert two List are equal?

... | edited May 29 '18 at 15:20 answered Jan 7 '09 at 9:33 ...
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Avoiding memory leaks with Scalaz 7 zipWithIndex/group enumeratees

...= (Process emit Array.fill(sz)(0)).repeat take n (streamArrs(1 << 25, 1 << 14).zipWithIndex pipe process1.chunk(4) pipe process1.fold(0L) { (c, vs) => c + vs.map(_._1.length.toLong).sum }).runLast.run This should work with any value for the n parameter (provid...
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Java String split removed empty values

... | edited Jun 20 at 9:12 Community♦ 111 silver badge answered Jan 30 '13 at 10:44 ...
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Which, if any, C++ compilers do tail-recursion optimization?

...); int foo(int n, int acc) { return (n == 0) ? acc : bar(n - 1, acc + 2); } int bar(int n, int acc) { return (n == 0) ? acc : foo(n - 1, acc + 1); } Letting the compiler do the optimisation is straightforward: Just switch on optimisation for speed: For MSVC, use /O2 or /Ox. For GCC, Cl...
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What is the equivalent of “android:fontFamily=”sans-serif-light" in Java code?

... | edited May 23 '17 at 12:18 Community♦ 111 silver badge answered Jan 15 '13 at 18:13 ...
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Truncate a list to a given number of elements

... 142 Use List.subList: import java.util.*; import static java.lang.Math.min; public class T { pub...
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Convert XmlDocument to String

... 182 There aren't any quotes. It's just VS debugger. Try printing to the console or saving to a file ...
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Float vs Decimal in ActiveRecord

...Float. It's like a scientific notation for binary (something like +1.43*10^2). Because of that, it is impossible to store fractions and decimals in Float exactly. That's why there is a Decimal format. If you do this: irb:001:0> "%.47f" % (1.0/10) => "0.10000000000000000555111512312578270211...