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How do I check if an index exists on a table field in MySQL?
...
Use SHOW INDEX like so:
SHOW INDEX FROM [tablename]
Docs: https://dev.mysql.com/doc/refman/5.0/en/show-index.html
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Alternate output format for psql
...ormatting, horizontal scrolling, search and many more features.
git clone https://github.com/okbob/pspg.git
cd pspg
./configure
make
make install
then make sure to update PAGER variable e.g. in your ~/.bashrc
export PAGER="pspg -s 6"
where -s stands for color scheme (1-14). If you're using pg...
How to wait for async method to complete?
....net/blog/why-you-should-almost-never-write-void-asynchronous-methods/ and https://jaylee.org/archive/2012/07/08/c-sharp-async-tips-and-tricks-part-2-async-void.html
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How to convert list of key-value tuples into dictionary?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
How do you detect/avoid Memory leaks in your (Unmanaged) code? [closed]
...or detecting and debugging memory leaks.
I would start with this article:
https://msdn.microsoft.com/en-us/library/x98tx3cf(v=vs.140).aspx
Here is the quick summary of those articles. First, include these headers:
#define _CRTDBG_MAP_ALLOC
#include <stdlib.h>
#include <crtdbg.h>
Th...
Why do Lua arrays(tables) start at 1 instead of 0?
... use 1, you can use -5. It is even in their manual, which can be found at (https://www.lua.org/pil/11.1.html).
In fact, something cool here is internal lua libraries will treat SOME passed 0's as 1's. Just be cautious when using ipairs.
So that: ("abc"):sub(0,1) == "a" and ("abc"):sub(1,1) == "a" w...
Is it possible to add an HTML link in the body of a MAILTO link [duplicate]
...aracters, and SHOULD be limited to 78 characters, excluding the CRLF.
https://tools.ietf.org/html/rfc5322#section-2.3
Generally nowadays most email clients are good at autolinking, but not all do, due to security concerns. You can likely find some work-arounds, but it won't necessarily work un...
Remove ':hover' CSS behavior from element
...ft: 0;
width: 100%;
height: 100%;
z-index: 60;
}
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" rel="stylesheet" />
<button class="btn btn-primary">hover</button>
<span class="no-hover">
<button class="btn btn-primar...
How to dump a dict to a json file?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Develop Android app using C#
...no.
Disclosure: I work for this company
UPDATE: all sources are now on https://github.com/dot42
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