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Why isn't SQL ANSI-92 standard better adopted over ANSI-89?
... by Peter Gulutzan and Trudy Pelzer, of the six or eight RDBMS brands they tested, there was no difference in optimization or performance of SQL-89 versus SQL-92 style joins. One can assume that most RDBMS engines transform the syntax into an internal representation before optimizing or executing t...
How do you run a Python script as a service in Windows?
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class AppServerSvc (win32serviceutil.ServiceFramework):
_svc_name_ = "TestService"
_svc_display_name_ = "Test Service"
def __init__(self,args):
win32serviceutil.ServiceFramework.__init__(self,args)
self.hWaitStop = win32event.CreateEvent(None,0,0,None)
socket.se...
Is there a Java equivalent to C#'s 'yield' keyword?
...our own generators this way:
import java.util.stream.Stream;
public class Test01 {
private static void myFoo(int someVar){
//do some work
System.out.println(someVar);
}
private static void myFoo2(){
//do some work
System.out.println("some work");
}
...
Are PHP include paths relative to the file or the calling code?
...getcwd(), which defaults to the path of the entry .php file (i.e. A.php).
Tested on PHP 5.4.3 (Build Date : May 8 2012 00:47:34).
(Also note that chdir() can change the output of getcwd().)
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What do the terms “CPU bound” and “I/O bound” mean?
...id-10k-sp 27.65 7.80 3.54
nnet_test 32.79 10.57 3.10
parser-125k 71.43 25.00 2.86
radix2-big-64k 2320.19 623.4...
How can I generate a list of files with their absolute path in Linux?
...below is more valid: ls -d -1 $PWD/**/* but I guess find $PWD also works (tested in bash)
– Brian
Apr 27 '11 at 16:47
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Submit jQuery UI dialog on
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I also had to change to "keydown" to make this work (tested on OS X 10.8.4, Chrome 29 and Firefox 23).
– natebeaty
Aug 27 '13 at 14:46
1
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Using bitwise OR 0 to floor a number
...loops on chrome due to loop invariant code motion. A slightly better perf test would be: jsperf.com/floor-performance/2
– Sam Giles
May 8 '13 at 12:04
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How to properly URL encode a string in PHP?
...'url'] = $mailToUri; because output encoding is handled by json_encode().
Test case
Run the code on a PHP test site (is there a canonical one I should mention here?)
Click the link
Send the email
Get the email
Click that link
You should see:
"args": {
"token": "w%a&!e#\"^2(^@azW"
},
A...
Call int() function on every list element?
...a Python built-in function implemented in C, it has a lower per item cost. Testing on an input of only four values will not provide useful information on scaling. That said, in my own tests (on Py2.7.12 and Py3.5.2, the latter with list() wrapping), Py2 with map won even for four element inputs, and...