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Is there any difference between “!=” and “” in Oracle Sql?
...¬= -- worked on some obscure platforms in the dark ages - yeah, they were called "IBM mainframes". From the days when men were men, women were women, dinosaurs roamed the earth, and computers were water-cooled. :-)
– Bob Jarvis - Reinstate Monica
Dec 14 '16 at...
List to array conversion to use ravel() function
...
If all you want is calling ravel on your (nested, I s'pose?) list, you can do that directly, numpy will do the casting for you:
L = [[1,None,3],["The", "quick", object]]
np.ravel(L)
# array([1, None, 3, 'The', 'quick', <class 'object'>],...
How do I “source” something in my .vimrc file?
...urcing a file is 'executing' it. Essentially, each line of the file is considered a command. Sourcing it is the same as typing each command in order. You source with the command :source (usually shortened to :so).
So if you source myStuff.vim
:so myStuff.vim
and if myStuff.vim contained these li...
How can I iterate through the unicode codepoints of a Java String?
...r internal representations of Strings, and, yes, it encodes characters outside the Basic Multilingual Plane (BMP) using the surrogacy scheme.
If you know you'll be dealing with characters outside the BMP, then here is the canonical way to iterate over the characters of a Java String:
final int len...
C#: Abstract classes need to implement interfaces?
...ly define those members with the abstract keyword:
interface IFoo
{
void Bar();
}
abstract class Foo : IFoo
{
public abstract void Bar();
}
Or to put it another way: you don't have to "implement" it (which would be a terrible limitation on abstract classes); however, in C#, you do have t...
Is there a way to define a min and max value for EditText in Android?
...
First make this class :
package com.test;
import android.text.InputFilter;
import android.text.Spanned;
public class InputFilterMinMax implements InputFilter {
private int min, max;
public InputFilterMinMax(int min, int max) {
this.min = min;
this.max ...
How to accept Date params in a GET request to Spring MVC Controller?
...DateFormatter is probably the way to go). In non-Boot Spring you can @Override the addFormatters method of WebMvcConfigurerAdapter and add your Formatter-implementing beans there.
– UTF_or_Death
Feb 17 '17 at 15:59
...
Label points in geom_point
...
short of properly 'dodging', consider this hjust = -0.1 to get the printed labels ever so slightly away from the data point.
– PatrickT
Mar 3 '16 at 11:28
...
Check whether or not the current thread is the main thread
...kpoint at the line you're interested in, and when your program reaches it, call this:
(lldb) thread info
This will display information about the thread you're on:
(lldb) thread info
thread #1: tid = 0xe8ad0, 0x00000001083515a0 MyApp`MyApp.ViewController.sliderMoved (sender=0x00007fd221486340, sel...
Repair all tables in one go
...dure to do the job.
It will iterate through rows of information_schema and call REPAIR TABLE 'tablename'; for every row. CHECK TABLE is not yet supported for prepared statements. Here's the example (replace MYDATABASE with your database name):
CREATE DEFINER = 'root'@'localhost'
PROCEDURE MYDATABAS...