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Physical vs. logical / soft delete of database record?
...QL) and then all rows with any deletion date are not indexed. (They can be included in a non-unique index instead.)
– KajMagnus
Jun 19 '13 at 20:52
...
Finding a branch point with Git?
...ust looked at the question history and the original question was edited to include that note about git merge-base five hours after my answer was posted (probably in response to my answer). Nevertheless, I will leave this answer as is because it may still be useful for somebody else who finds this qu...
What is the “assert” function?
... increase in
the size of the executable version of
the program.
Eg
#include <stdio.h>
#include <assert.h>
void analyze (char *, int);
int main(void)
{
char *string = "ABC";
int length = 3;
analyze(string, length);
printf("The string %s is not null or empty, "
...
Setting Windows PowerShell environment variables
... a user environment variable
[Environment]::SetEnvironmentVariable
("INCLUDE", $env:INCLUDE, [System.EnvironmentVariableTarget]::User)
Usage from comments - add to the system environment variable
[Environment]::SetEnvironmentVariable(
"Path",
[Environment]::GetEnvironmentVariable("P...
Set cellpadding and cellspacing in CSS?
...
Hi, all. I've updated the answer for clarity, including a section on cellpadding, which I'd thought was obvious (just use "padding"). Hope it's more useful now.
– Eric Nguyen
Dec 16 '13 at 6:27
...
How to change the name of an iOS app?
...the 'bundle display name' (as opposed to 'bundle name') is the only way to include characters like '+' in your applications name. Including special characters in the project name will cause an error when uploading to the app store!
...
“INSERT IGNORE” vs “INSERT … ON DUPLICATE KEY UPDATE”
...ent won't generate an error. It generates a warning instead. These cases include:
Inserting a duplicate key in columns with PRIMARY KEY or UNIQUE constraints.
Inserting a NULL into a column with a NOT NULL constraint.
Inserting a row to a partitioned table, but the values you insert don't map ...
How to locate the vimrc file used by vim editor?
...
Just try doing the following:
:version
You will get an output which includes something like:
system vimrc file: "$VIM/vimrc"
user vimrc file: "$HOME/.vimrc"
user exrc file: "$HOME/.exrc"
system gvimrc file: "$VIM/gvimrc"
user gvimrc file: "$HOME/.gvimrc"
system menu fil...
What is the appropriate HTTP status code response for a general unsuccessful request (not an error)?
...'m creating a RESTful API that will process a number of user interactions, including placing orders using stored credit cards.
...
What is the best way to use a HashMap in C++?
...
The standard library includes the ordered and the unordered map (std::map and std::unordered_map) containers. In an ordered map the elements are sorted by the key, insert and access is in O(log n). Usually the standard library internally uses red...