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What does `unsigned` in MySQL mean and when to use it?
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MySQL says:
All integer types can have an optional
(nonstandard) attribute UNSIGNED.
Unsigned type can be used to permit
only nonnegative numbers in a column
or when you need a larger upper
numeric range for the column. For
examp...
Extract every nth element of a vector
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It is better to use seq.int(1L, length(a), 6L), at least for long vectors
– Wojciech Sobala
Mar 8 '11 at 20:45
1
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How to correctly sort a string with a number inside? [duplicate]
...ng (also known as natural sorting):
import re
def atoi(text):
return int(text) if text.isdigit() else text
def natural_keys(text):
'''
alist.sort(key=natural_keys) sorts in human order
http://nedbatchelder.com/blog/200712/human_sorting.html
(See Toothy's implementation in the ...
Remove the image from a imageview Android [duplicate]
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If an image is not loaded into imageView and still one tries to clear it, the program stops unexpectedly. Is there a way to tackle this ?
– Krithi07
May 29 '15 at 10:11
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Remove background drawable programmatically in Android
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I get this error: The method setBackgroundResource(int) in the type View is not applicable for the arguments (null)
– UKDataGeek
May 13 '12 at 9:08
2
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Can I change a column from NOT NULL to NULL without dropping it?
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Sure you can.
ALTER TABLE myTable ALTER COLUMN myColumn int NULL
Just substitute int for whatever datatype your column is.
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Correct way to override Equals() and GetHashCode() [duplicate]
...rn this.RecommendationId.Equals(item.RecommendationId);
}
public override int GetHashCode()
{
return this.RecommendationId.GetHashCode();
}
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How do I get epoch time in C#? [duplicate]
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TimeSpan t = DateTime.UtcNow - new DateTime(1970, 1, 1);
int secondsSinceEpoch = (int)t.TotalSeconds;
Console.WriteLine(secondsSinceEpoch);
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What is &&& operation in C
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@anishsane i is defined as int and there's no labels in the question. Also, maximal munch...
– Luchian Grigore
Dec 20 '12 at 9:35
5
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Java split string to array [duplicate]
...railing empty strings included, you need to use String.split(String regex, int limit) with a negative value for the second parameter (limit):
String[] array = values.split("\\|", -1);
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