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How can I get column names from a table in Oracle?
...u have 'no rows selected' then you could try to change USER_TAB_COLUMNS to all_tab_columns. To be 100% sure about result you could speficy owner.
– Dracontis
Feb 25 '15 at 9:01
2
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Calling Java varargs method with single null argument?
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A Test Case to illustrate this:
The Java code with a vararg-taking method declaration (which happens to be static):
public class JavaReceiver {
public static String receive(String... x) {
String res = ((x == null)...
What are the best practices for catching and re-throwing exceptions?
...don't know how to respond to the failure
}
PHP 5.5 has introduced the finally keyword, so for cleanup scenarios there is now another way to approach this. If the cleanup code needs to run no matter what happened (i.e. both on error and on success) it's now possible to do this while transparently a...
Are HTTP cookies port specific?
...ourse they do. I (and probably million other developers) use localhost for testing all the time. Unless the added port makes a difference: localhost:8080
– David Balažic
Jun 12 '14 at 10:08
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How to send email from Terminal?
...echo -e 'From: from-email@gmail.com\nTo: to-email@gmail.com\nSubject: Curl Test\n\nHello')
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Why does Assert.AreEqual(T obj1, Tobj2) fail with identical byte arrays
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Assert.Equals tests using the Equals method, which by default uses reference equality and, since they are different objects, they are not equal. You'll want to compare each byte in the array and verify that they are equal. One way to do ...
lsof survival guide [closed]
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To show all networking related to a given port:
lsof -iTCP -i :port
lsof -i :22
To show connections to a specific host, use @host
lsof -i@192.168.1.5
Show connections based on the host and the port using @host:port
lsof -i@...
How to check if Location Services are enabled?
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This didn't work on my test device, Samsung SHV-E160K, android 4.1.2, API 16. Although i make the GPS offline, this function still return true. I tested on Android Nougat, API 7.1 it works
– HendraWD
Nov 23 '1...
Vertically centering a div inside another div [duplicate]
...gest that you use one of the more modern solutions.
Here is an example
Tested in:
FF3.5+
FF4+
Safari 5+
Chrome 11+
IE9+
HTML
<div class="cn"><div class="inner">your content</div></div>
CSS
.cn {
display: table-cell;
width: 500px;
height: 500px;
vertical...
NumPy: function for simultaneous max() and min()
...py -m untitled -c fortran_code.f90
And now we're in a place where we can test it:
import timeit
size = 100000
repeat = 10000
print timeit.timeit(
'np.min(a); np.max(a)',
setup='import numpy as np; a = np.arange(%d, dtype=np.float32)' % size,
number=repeat), " # numpy min/max"
print...