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How to 'insert if not exists' in MySQL?
...
use INSERT IGNORE INTO table
see http://bogdan.org.ua/2007/10/18/mysql-insert-if-not-exists-syntax.html
there's also INSERT … ON DUPLICATE KEY UPDATE syntax, you can find explanations on dev.mysql.com
Post from bogdan.org.ua according to Google's webca...
How to implement a custom AlertDialog View
...t;?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/dialog_layout_root"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height=...
Objective-C categories in static library
...ments.
Problem was caused by (citation from apple Technical Q&A QA1490 https://developer.apple.com/library/content/qa/qa1490/_index.html):
Objective-C does not define linker
symbols for each function (or method,
in Objective-C) - instead, linker
symbols are only generated for each
class. If you...
How to automatically generate getters and setters in Android Studio
...t multiple fields for which to generate getters/setters with one step.
See http://www.jetbrains.com/idea/webhelp/generating-getters-and-setters.html
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What is the canonical way to check for errors using the CUDA runtime API?
...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...
Best way to use Google's hosted jQuery, but fall back to my hosted library on Google fail
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You can achieve it like this:
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.2.6/jquery.min.js"></script>
<script>
window.jQuery || document.write('<script src="/path/to/your/jquery"><\/script>');
</script>
This ...
Are SVG parameters such as 'xmlns' and 'version' needed?
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The xmlns="http://www.w3.org/2000/svg" attribute is:
Required for image/svg+xml files. 1
Optional for inlined <svg>. 2
The xmlns:xlink="http://www.w3.org/1999/xlink" attribute is:
Required for image/svg+xml files with xlink:...
Skip rows during csv import pandas
...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...
Is there an equivalent to background-size: cover and contain for image elements?
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width: 100vw;
height: 100vh;
object-fit: cover;
}
<img src="http://lorempixel.com/1500/1000" />
See MDN - regarding object-fit: cover:
The replaced content is sized to maintain its aspect ratio while
filling the element’s entire content box. If the object's aspect ra...
Which characters make a URL invalid?
...nd unwise characters (e.g. '$', '[', ']') and should be properly encoded:
http://mw1.google.com/mw-earth-vectordb/kml-samples/gp/seattle/gigapxl/$[level]/r$[y]_c$[x].jpg
Some of the character restrictions for URIs/URLs are programming language dependent. For example, the '|' (0x7C) character alth...