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Multiple Updates in MySQL
...')');
if($TestNum==0)
{
$TestName='Transaction';
$Start=microtime(true);
$DoQuery('START TRANSACTION');
for($i=1;$i<=$NumRows;$i++)
$DoQuery('UPDATE '.$TableName.' SET i2='.(($i+5)*1000).' WHERE i1='.$i);
$DoQuery('COMMIT');
}
...
Node.js vs .Net performance
...you run out of threads. The problem with the ASP.NET model comes when you start making I/O requests that block the thread (call to a DB, make an http request to a service, read a file from disk). These blocking requests mean that your valuable thread from the thread pool is doing nothing. The more ...
How do I calculate someone's age in Java?
...
Modern answer and overview
a) Java-8 (java.time-package)
LocalDate start = LocalDate.of(1996, 2, 29);
LocalDate end = LocalDate.of(2014, 2, 28); // use for age-calculation: LocalDate.now()
long years = ChronoUnit.YEARS.between(start, end);
System.out.println(years); // 17
Note that the exp...
What are Java command line options to set to allow JVM to be remotely debugged?
... the agent is selecting a random port number. This might be useful if you start multiple nodes within the same java command line.
– asbachb
Jul 1 at 14:57
...
Super-simple example of C# observer/observable with delegates
I recently started digging into C# but I can't by my life figure out how delegates work when implementing the observer/observable pattern in the language.
...
Split string with delimiters in C
...==.
For that pattern to work, token and str both have type char *. If you started with a string literal, then you'd want to make a copy of it first:
// More general pattern:
const char *my_str_literal = "JAN,FEB,MAR";
char *token, *str, *tofree;
tofree = str = strdup(my_str_literal); // We own s...
When someone writes a new programming language, what do they write it IN?
...programs from disk files or punch cards. You flicked another switch and it started the program running. When I went to university in the 80's I saw computers that had that capacity but never was given the job of loading in a program with the switches.
And even earlier than that computer programs ha...
A gentle tutorial to Emacs/Swank/Paredit for Clojure
... counterpart), clojure-mode, Paredit and, of course, the Clojure jar for a start, then perhaps some extras among which Leiningen would perhaps be the most notable. Once you do set it all up, you'll have -- within Emacs -- all the workflow / editing features you mention in the question.
Basic setup:...
Runnable with a parameter?
...nal String str) {
Thread t = new Thread(() -> someFunc(str));
t.start();
}
As before, details like handling that thread in a meaningful way is left as an exercise to the reader. But to put it bluntly, if you're afraid of using lambdas, you should be even more afraid of multi-threaded sy...
How can I get zoom functionality for images?
...;
int mode = NONE;
// Remember some things for zooming
PointF start = new PointF();
PointF mid = new PointF();
float oldDist = 1f;
Context context;
public TouchImageView(Context context) {
super(context);
super.setClickable(true);
this.context ...