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Which MySQL data type to use for storing boolean values
... @JamesHalsall: Actually, BIT(1) and TINYINT(1) will both use one byte of storage. Up until MySQL 5.0.3, BIT was actually a synonym for TINYINT. Later versions of MySQL changed the implementation of BIT. But even with the implementation change, there's still no "storage size" benefit to...
Database, Table and Column Naming Conventions? [closed]
...named consistently in different tables. It should be legal to beat up someone who does not do this. I would submit that while defined foreign key constraints are often important, consistent foreign key naming is always important
You database must have internal conventions. Even though in later s...
Find out what process registered a global hotkey? (Windows API)
...
Your question piqued my interest, so I've done a bit of digging and while, unfortunately I don't have a proper answer for you, I thought I'd share what I have.
I found this example of creating keyboard hook (in Delphi) written in 1998, but is compilable in Delphi 200...
Terminating a script in PowerShell
...is an old post but I find myself coming back to this thread a lot as it is one of the top search results when searching for this topic. However, I always leave more confused then when I came due to the conflicting information. Ultimately I always have to perform my own tests to figure it out. So thi...
Converting file size in bytes to human-readable string
...
Here's one I wrote:
function humanFileSize(bytes, si=false, dp=1) {
const thresh = si ? 1000 : 1024;
if (Math.abs(bytes) < thresh) {
return bytes + ' B';
}
const units = si
? ['kB', 'MB', 'GB', 'TB...
What's the best way to get the last element of an array without deleting it?
...on 10. $x = $array[array_key_last($array)]; (as suggested by Quasimodo's clone ; available per PHP 7.3)
(functions mentioned: array_key_last , array_keys , array_pop , array_slice , array_values , count , end , reset)
The test inputs (<<input code>>s) to combine with:
null = $array...
What are the main purposes of using std::forward and which problems it solves?
...compiler to do for us in C++11.)
In C++11, we get a chance to fix this. One solution modifies template deduction rules on existing types, but this potentially breaks a great deal of code. So we have to find another way.
The solution is to instead use the newly added rvalue-references; we can int...
Is a Java hashmap search really O(1)?
...esting claims on SO re Java hashmaps and their O(1) lookup time. Can someone explain why this is so? Unless these hashmaps are vastly different from any of the hashing algorithms I was bought up on, there must always exist a dataset that contains collisions.
...
How do I check if a given string is a legal/valid file name under Windows?
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Anyone else disappointed that MS doesn't provide system level function/API for this capability instead of each developer has to cook his/her own solution? Wondering if there's a very good reason for this or just an oversight on...
.NET - Dictionary locking vs. ConcurrentDictionary
...other customers in line behind you.
Now consider this. In the store with one clerk, what if you get all the way to the front of the line, and ask the clerk "Do you have any toilet paper", and he says "Yes", and then you go "Ok, I'll get back to you when I know how much I need", then by the time yo...