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Update multiple rows in same query using PostgreSQL
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+50
You can also use update ... from syntax and use a mapping table. If you want to update more than one column, it's much more generaliza...
AngularJS changes URLs to “unsafe:” in extension page
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edited Dec 10 '13 at 14:49
Bob Fanger
23.7k77 gold badges5252 silver badges6464 bronze badges
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How to use a different version of python during NPM install?
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507
You can use --python option to npm like so:
npm install --python=python2.7
or set it to be u...
Why is string concatenation faster than array join?
...e first browser to optimize string concatenation. Beginning with version 1.0, the array technique is actually slower than using the plus operator in all cases. Other browsers have also optimized string concatenation, so Safari, Opera, Chrome, and Internet Explorer 8 also show better performance usin...
How to generate a random number in C++?
...d)
{
unsigned long j;
srand( (unsigned)time(NULL) );
for( j = 0; j < 100500; ++j )
{
int n;
/* skip rand() readings that would make n%6 non-uniformly distributed
(assuming rand() itself is uniformly distributed from 0 to RAND_MAX) */
while( ( n ...
What are the differences between git remote prune, git prune, git fetch --prune, etc
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answered Nov 20 '13 at 21:14
John SzakmeisterJohn Szakmeister
35.8k88 gold badges7474 silver badges7070 bronze badges
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What differences, if any, between C++03 and C++11 can be detected at run-time?
...le to write a function, which, when compiled with a C compiler will return 0, and when compiled with a C++ compiler, will return 1 (the trivial sulution with
#ifdef __cplusplus is not interesting).
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Format bytes to kilobytes, megabytes, gigabytes
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320
function formatBytes($bytes, $precision = 2) {
$units = array('B', 'KB', 'MB', 'GB', 'TB');...
Why does Python print unicode characters when the default encoding is ASCII?
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104
Thanks to bits and pieces from various replies, I think we can stitch up an explanation.
By t...