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MySQL, better to insert NULL or empty string?
...re differences:
A LENGTH of NULL is NULL, a LENGTH of an empty string is 0.
NULLs are sorted before the empty strings.
COUNT(message) will count empty strings but not NULLs
You can search for an empty string using a bound variable but not for a NULL. This query:
SELECT *
FROM mytable
WHERE ...
Using %f with strftime() in Python to get microseconds
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edited Jul 21 '17 at 8:20
Nam G VU
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answe...
What XML parser should I use in C++? [closed]
...callbacks so that you can tell it where it gets the file from), an XPath 1.0 recognizer, RelaxNG and Schematron support (though the error messages leave a lot to be desired), and so forth.
It does have a dependency on iconv, but it can be configured without that dependency. Though that does mean tha...
Disable a group of tests in rspec?
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Yaro Holodiuk
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answered Oct 4 '12 at 4:03
PyroPyro
1,841...
Android: How do I get string from resources using its name?
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1101
The link you are referring to seems to work with strings generated at runtime. The strings from...
What characters are forbidden in Windows and Linux directory names?
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Legorooj
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answered Dec 29 '09 at 18:19
Dour High ArchDour H...
How do I convert Long to byte[] and back in java
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public static byte[] longToBytes(long x) {
buffer.putLong(0, x);
return buffer.array();
}
public static long bytesToLong(byte[] bytes) {
buffer.put(bytes, 0, bytes.length);
buffer.flip();//need flip
return buffer.getLong();
}
}
Since...
Thin web server: `start_tcp_server': no acceptor (RuntimeError) after git branch checkout
A Rails 3.2.0 app, working fine with Thin web server, both locally and on Heroku cedar stack.
9 Answers
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NSLog the method name with Objective-C in iPhone
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Irfan
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answered May 5 '10 at 2:46
drawnonwarddrawnonward
51.7k1515 ...
Enum String Name from Value
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560
You can convert the int back to an enumeration member with a simple cast, and then call ToString...