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Why unsigned integer is not available in PostgreSQL?

I came across this post ( What is the difference between tinyint, smallint, mediumint, bigint and int in MySQL? ) and realized that PostgreSQL does not support unsigned integer. ...
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Is there a read-only generic dictionary available in .NET?

...lt;TKey, TValue> { private readonly IDictionary<TKey, TValue> _dictionary; public ReadOnlyDictionary() { _dictionary = new Dictionary<TKey, TValue>(); } public ReadOnlyDictionary(IDictionary<TKey, TValue> dictionary) { _dictionary = dict...
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How to merge lists into a list of tuples?

... In Python 2: >>> list_a = [1, 2, 3, 4] >>> list_b = [5, 6, 7, 8] >>> zip(list_a, list_b) [(1, 5), (2, 6), (3, 7), (4, 8)] In Python 3: >>> list_a = [1, 2, 3, 4] >>> list_b = [5, 6, 7, 8] >>> list(zi...
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Why use a public method in an internal class?

...presents the key, documented functionality provided by this object." Basically, my attitude is: suppose I decided to make this internal class into a public class. In order to do that, I want to change exactly one thing: the accessibility of the class. If turning an internal class into a public clas...
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Is a colon `:` safe for friendly-URL use?

... will specify application sections as words separated by slashes. Specifically, this is in GWT, so the relevant parts of the URL will be in the hash (which will be interpreted by a controller layer on the client-side): ...
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Find where python is installed (if it isn't default dir)

...isn't in it's default directory, there surely is a way of finding it's install location from here? 11 Answers ...
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Why is HttpClient BaseAddress not working?

...se class of my RestClient, it was almost invisible and got no attention at all, and I never saw the full url in at my breakpoints etc. – ProfK Dec 13 '16 at 14:32 ...
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Select multiple records based on list of Id's with linq

I have a list containing Id's of my UserProfile table. How can i select all UserProfiles based on the list of Id's i got in a var using LINQ ? ...
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Is it possible to GROUP BY multiple columns using MySQL?

...garding SUM using with GROUP BY. If GROUP BY only by one column, then SUMs all values of each distinct (different) the column value sqlfiddle.com/#!9/1cbde2/2. If GROUP BY two columns. Then mysql at first checks if for the first column value there are different values in the second column. If yes, t...
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PyLint “Unable to import” error - how to set PYTHONPATH?

...le works better for me: [MASTER] init-hook="from pylint.config import find_pylintrc; import os, sys; sys.path.append(os.path.dirname(find_pylintrc()))" Note that pylint.config.PYLINTRC also exists and has the same value as find_pylintrc(). ...