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Select random row from a sqlite table
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Have a look at Selecting a Random Row from an SQLite Table
SELECT * FROM table ORDER BY RANDOM() LIMIT 1;
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Not equal != operator on NULL
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<> is Standard SQL-92; != is its equivalent. Both evaluate for values, which NULL is not -- NULL is a placeholder to say there is the absence of a value.
Which is why you can only use IS NULL/IS NOT NULL as predicates for such situ...
Disable double-tap “zoom” option in browser on touch devices
...tion does not appear to work in iOS Safari v12+. I will update this answer and delete this note once I find a clear solution that covers iOS Safari.
CSS-only solution
Add touch-action: manipulation to any element on which you want to disable double tap zoom, like with the following disable-dbl-tap-z...
List of installed gems?
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The Gem command is included with Ruby 1.9+ now, and is a standard addition to Ruby pre-1.9.
require 'rubygems'
name = /^/i
dep = Gem::Dependency.new(name, Gem::Requirement.default)
specs = Gem.source_index.search(dep)
puts specs[0..5]....
Disabling user selection in UIWebView
I have an app where I load content to a UIWebView and present this. I cannot disable user interaction completely because I want the user to be able to click links. I just need to disable user selection. I found somewhere in the Internets that you can use:
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Git: How to squash all commits on branch
... HEAD))
[That] automatically uses the branch you are currently on.
And if you use that, you can also use an alias, as the command doesn't rely on the branch name.
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How to repeat a “block” in a django template
... {% block content %}{% endblock %}
</body>
</html>
and then:
# blog.html
{% extends 'base.html' %}
{% block content %}
<h1>{% block title %}My Blog{% endblock %}</h1>
Lorem ipsum here...
{% endblock %}
and so on... Looks like DRY-compatible.
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In a git merge conflict, what are the BACKUP, BASE, LOCAL, and REMOTE files that are generated?
I assume the LOCAL and REMOTE files are just what their name suggests, but what are BASE and BACKUP for?
1 Answer
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How can I select and upload multiple files with HTML and PHP, using HTTP POST?
...hat it looks like in Chrome after selecting 2 items in the file dialog:
And here's what it looks like after clicking the "Upload" button.
This is just a sketch of a fully working answer. See PHP Manual: Handling file uploads for more information on proper, secure handling of file uploads in PH...
No Entity Framework provider found for the ADO.NET provider with invariant name 'System.Data.SqlClie
After downloading the EF6 by nuget and try to run my project, it returns the following error:
34 Answers
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