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ORA-12505, TNS:listener does not currently know of SID given in connect descriptor
...and only work if you're on the same machine as the database. If the first one fails but the other two succeed, then JDBC connections will also fail. If so, connect to the database using either of the other two and run ALTER SYSTEM REGISTER. Then exit from SQL*Plus and try the first form again.
I...
In PHP, can you instantiate an object and call a method on the same line?
...) {
return new Test($param);
}
And now, it becomes possible to use a one-liner, like you asked -- only thing is you are calling the function, thus not using new :
$a = Test(10)->myMethod();
var_dump($a);
And it works : here, I'm getting :
int 20
as output.
And, better, you can put s...
jQuery event handlers always execute in order they were bound - any way around this? [duplicate]
...t least then if .data() breaks in a later release, you only have to update one function
– asgeo1
Apr 19 '10 at 3:48
2
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How to write an inline IF statement in JavaScript?
...
You don't necessarily need jQuery. JavaScript alone will do this.
var a = 2;
var b = 3;
var c = ((a < b) ? 'minor' : 'major');
The c variable will be minor if the value is true, and major if the value is false.
This is known as a Conditional (ternary) Operato...
Default value to a parameter while passing by reference in C++
...
You can do it for a const reference, but not for a non-const one. This is because C++ does not allow a temporary (the default value in this case) to be bound to non-const reference.
One way round this would be to use an actual instance as the default:
static int AVAL = 1;
void f( in...
nodeJs callbacks simple example
can any one give me a a simple example of nodeJs callbacks, I have already searched for the same on many websites but not able to understand it properly, Please give me a simple example.
...
What is a StackOverflowError?
...nt message. Here you've not explicitly called yourself, but the OS/VM has done it for you.
To deal with them, you'll need to examine your code. If you've got functions that call themselves then check that you've got a terminating condition. If you have, then check that when calling the function you...
Differences between Emacs and Vim
Without getting into a religious argument about why one is better than the other, what are the practical differences between Emacs and Vim? I'm looking to learn one or the other, but I realize the learning curve for each is high and I can't decide. I have never used an editor of this type (I've al...
Select unique or distinct values from a list in UNIX shell script
...at uniq seams to process only adjacent lines (at least by default) meaning one may sort input before feeding uniq.
– Stphane
Feb 19 '16 at 0:28
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How do you log all events fired by an element in jQuery?
...no way to display custom events, for example if a plugin fires some custom ones?
– Daniel T.
Sep 16 '11 at 2:46
2
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