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Changing password with Oracle SQL Developer
Many of my users do not use SQLPlus. I cannot give them alter user. We expire passwords every 60 days.
14 Answers
...
Emacs: print key binding for a command or list all key bindings
... which start with a particular key? For example, what bindings start with <f2>? Pressing <f2> after "C-h m" does not work as Emacs is waiting for a second key.
– SabreWolfy
Apr 26 '12 at 8:30
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How do I get the dialer to open with phone number displayed?
... case, you must add the following permission in your AndroidManifest.xml:
<uses-permission android:name="android.permission.CALL_PHONE" />
2) Need user to click on Phone_Number string and start the call.
android:autoLink="phone"
You need to use TextView with below property.
android:autoLink...
Opposite of %in%: exclude rows with values specified in a vector
...c('B','N','T')))
EDIT:
You can also make an operator yourself:
'%!in%' <- function(x,y)!('%in%'(x,y))
c(1,3,11)%!in%1:10
[1] FALSE FALSE TRUE
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Get a pixel from HTML Canvas?
...p over each pixel and invert the color.
for (var i = 0, n = pix.length; i < n; i += 4) {
pix[i ] = 255 - pix[i ]; // red
pix[i+1] = 255 - pix[i+1]; // green
pix[i+2] = 255 - pix[i+2]; // blue
// i+3 is alpha (the fourth element)
}
// Draw the ImageData at the given (x,y) coordi...
How to resize images proportionally / keeping the aspect ratio?
...ght about that @sstauross, decimal pixels can have slightly unexpected results. In my use case however, it was negligible. I suppose Math.floor will really help with a pixel perfect design :-)
– Jason J. Nathan
Mar 3 '15 at 22:49
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belongs_to through associations
...
You can also delegate:
class Company < ActiveRecord::Base
has_many :employees
has_many :dogs, :through => :employees
end
class Employee < ActiveRescord::Base
belongs_to :company
has_many :dogs
end
class Dog < ActiveRecord::Base
belongs_to ...
How do I associate a Vagrant project directory with an existing VirtualBox VM?
...ON. It looks like this if a single VM exists:
{
"active":{
"default":"02f8b71c-75c6-4f33-a161-0f46a0665ab6"
}
}
default is the name of the default virtual machine (if you're not using multi-VM setups).
If your VM has somehow become disassociated, what you can do is do VBoxManage lis...
What is the difference between “def” and “val” to define a function
...t; r
}
test()
// Int = -1049057402
test()
// Int = -1049057402 - same result
def test: () => Int = {
val r = util.Random.nextInt
() => r
}
test()
// Int = -240885810
test()
// Int = -1002157461 - new result
val evaluates when defined, def - when called:
scala> val even: Int => ...
How to write a Unit Test?
...les Null inputs gracefully (example below).
//if you are using 0 as default for null, make sure your class works in that case.
@Test
public void testAdd1Plus1()
{
int y = 1;
assertEquals(0, myClass.add(null,y));
}
...