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Removing duplicate rows from table in Oracle
... and populated a table with some sample data, but in the process I accidentally loaded duplicate records, so now I can't create a primary key using some of the columns.
...
Why is “if not someobj:” better than “if someobj == None:” in Python?
...a __nonzero__ special method (as do numeric built-ins, int and float), it calls this method. It must either return a bool value which is then directly used, or an int value that is considered False if equal to zero.
Otherwise, if the object has a __len__ special method (as do container built-ins, li...
How to pass json POST data to Web API method as an object?
... with the result :)
});
Model binding works for some properties, but not all ! Why ?
If you do not decorate the web api method parameter with [FromBody] attribute
[HttpPost]
public CreateUserViewModel Save(CreateUserViewModel m)
{
return m;
}
And send the model(raw javascript object, not i...
When NOT to call super() method when overriding?
... its native class. Then when I want to override the base method, I always call super() method, just like I always do in onCreate , onStop , etc.
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Converting a generic list to a CSV string
...st) and would like to generate a string of comma delimited values. That is all items in the list output to a single comma delimted list.
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How to find out the number of CPUs using python
...sing Python. The result should be user/real as output by time(1) when called with an optimally scaling userspace-only program.
...
Mock vs MagicMock
My understanding is that MagicMock is a superset of Mock that automatically does "magic methods" thus seamlessly providing support for lists, iterations and so on... Then what is the reason for plain Mock existing? Isn't that just a stripped down version of MagicMock that can be practically ...
Copying a HashMap in Java
...ew HashMap<Integer,myObject>(myobjectListA);
This will create a (shallow) copy of the map.
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What is pseudopolynomial time? How does it differ from polynomial time?
...ng TSP takes time O(n · n!), which isn't polynomial time.
These runtimes all refer to some variable n that tracks the size of the input. For example, in selection sort, n refers to the number of elements in the array, while in TSP n refers to the number of nodes in the graph. In order to standardi...
Convert string date to timestamp in Python
...t;> time.mktime(datetime.datetime.strptime(s, "%d/%m/%Y").timetuple())
1322697600.0
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