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Can table columns with a Foreign Key be NULL?
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INSERT INTO child (id, parent_id) VALUES (2, 1);
-- ERROR 1452 (23000): Cannot add or update a child row: a foreign key
-- constraint fails (`t/child`, CONSTRAINT `child_ibfk_1` FOREIGN KEY
-- (`parent_id`) REFERENCES `parent` (`id`))
The first insert will pass because we insert a...
How to create a project from existing source in Eclipse and then find it?
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243
Easiest Method:
Put all source files into one directory named after your project. i.e. "Proje...
Linking R and Julia?
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42
The RJulia R package looks quite good now from R. R CMD check runs without warnings or error...
How do I check to see if a value is an integer in MySQL?
... JumpyJumpy
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Add IIS 7 AppPool Identities as SQL Server Logons
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dp.dp.
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What is the difference between currying and partial application?
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14 Answers
14
Active
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HTML Input=“file” Accept Attribute File Type (CSV)
...e="file" accept="text/html" />
For Video Files (.avi, .mpg, .mpeg, .mp4), use:
<input type="file" accept="video/*" />
For Audio Files (.mp3, .wav, etc), use:
<input type="file" accept="audio/*" />
For PDF Files, use:
<input type="file" accept=".pdf" />
DEMO:
http://j...
Webfonts or Locally loaded fonts?
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34
First, I'll clear something up about Google's offering. It will actually load the smallest forma...
Animated GIF in IE stopping
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pb.innerHTML = '<img src="./progress-bar.gif" width="200" height ="40"/>';
pb.style.display = '';
}
and in your html:
<input type="submit" value="Submit" onclick="showProgress()" />
<div id="progressBar" style="display: none;">
<img src="./progress-bar.gif" width...