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Generating a UUID in Postgres for Insert statement?
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453
uuid-ossp is a contrib module, so it isn't loaded into the server by default. You must load it...
pythonic way to do something N times without an index variable?
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answered Jun 4 '10 at 0:42
Alex MartelliAlex Martelli
724k148148 gold badges11261126 silver badges13241324 bronze badges
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How to redirect and append both stdout and stderr to a file with Bash?
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edited Mar 9 '17 at 14:55
Fritz
82099 silver badges2323 bronze badges
answered May 18 '09 at 4:23
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How to fix error “Updating Maven Project”. Unsupported IClasspathEntry kind=4?
...s issue has been fixed in m2e 1.5.0 which is available for Eclipse Kepler (4.3) and Luna (4.4)
Please see https://bugs.eclipse.org/bugs/show_bug.cgi?id=374332#c14
The problem is caused by the fact that STS (the Spring IDE/Eclipse), as well Eclipse and other Eclipse based IDE's, use the m2e(clipse)...
How do you find the sum of all the numbers in an array in Java?
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In java-8 you can use streams:
int[] a = {10,20,30,40,50};
int sum = IntStream.of(a).sum();
System.out.println("The sum is " + sum);
Output:
The sum is 150.
It's in the package java.util.stream
import java.util.stream.*;
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How do I clear all options in a dropdown box?
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14
MooTools also has empty(), so you would do $("DropList").empty();
– Brian Koser
Sep 12 '12 at 19:37
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How to rollback a specific migration?
I have the following migration file db\migrate\20100905201547_create_blocks.rb
14 Answers
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Convert the values in a column into row names in an existing data frame
...t;- df[,1]
R> df[,1] <- NULL
R> df
b c
a 1 A
b 2 B
c 3 C
d 4 D
e 5 E
f 6 F
g 7 G
h 8 H
i 9 I
j 10 J
R>
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How do I record audio on iPhone with AVAudioRecorder?
...y the user pressing a button on the navBar.
The recording uses cd quality (44100 samples), stereo (2 channels) linear pcm. Beware: if you want to use a different format, especially an encoded one, make sure you fully understand how to set the AVAudioRecorder settings (read carefully the audio types ...