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Storing money in a decimal column - what precision and scale?
...int if you intend on sorting by the amount. And don't waste your time with PHP 32bit when dealing with big integers, upgrade to 64bit or Node.JS ;)
– Ricky Boyce
Sep 9 '15 at 0:30
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Is there a MySQL option/feature to track history of changes to records?
...ess some comments in no particular order:
I did my own implementation in PHP that was a little more involved, and avoided some of the problems described in comments (having indexes transferred over, signifcantly. If you transfer over unique indexes to the history table, things will break. There ar...
How to alias a table in Laravel Eloquent queries (or using Query Builder)?
... ->get();
Let's see it in action with an awesome tinker tool
$ php artisan tinker
[1] > Schema::create('really_long_table_name', function($table) {$table->increments('id');});
// NULL
[2] > DB::table('really_long_table_name')->insert(['id' => null]);
// true
[3] > DB::t...
What is the difference between lock and Mutex?
...s really a shortcut to the Monitor class, on the other hand tries to avoid allocating kernel resources and transitioning to kernel code (and is thus leaner & faster - if one has to find a WinAPI construct that it resembles, it would be CriticalSection).
The other difference is what others point...
List directory in Go
...t complete answer here. It's worth noting that there is no memory usage or allocs reported by this benchmark. It's possible the faster implementations use more memory. It's also possible that the number of CPU cores on the tester's computer hurts/helps the concurrent filepath.Walk. Furthermore, file...
What is tail call optimization?
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Tail-call optimization is where you are able to avoid allocating a new stack frame for a function because the calling function will simply return the value that it gets from the called function. The most common use is tail-recursion, where a recursive function written to take ad...
Clean ways to write multiple 'for' loops
... 0, 0, 0, 0, 0, 0, 0, 0,
}
Also this will not work for pointers (arrays allocated in heap).
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How to design a multi-user ajax web application to be concurrently safe
...r cruel to your infrastructure if you do not configure your (Apache?) and (php?) well enough to be "lightweight" starters. It is desirable to optimize the polling request on the serverside so that it runs for far less time than the length of the polling interval. Splitting that runtime in half might...
Difference between Pragma and Cache-Control headers?
...: no-cache directive, so it is advised to use it by OWASP: owasp.org/index.php/…
– Randall Borck
Apr 27 '18 at 18:42
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getMinutes() 0-9 - How to display two digit numbers?
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(condition?true:false) in PHP you can omit the true statement (condition?:false) in JS you would then use (condition||false) Ternary operator en.wikipedia.org/wiki/Ternary_operation
– llange
Mar 16 '19 at 9:53
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