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Splitting string into multiple rows in Oracle

...st2', 'Err1' from dual ) select distinct t.name, t.project, trim(regexp_substr(t.error, '[^,]+', 1, levels.column_value)) as error from temp t, table(cast(multiset(select level from dual connect by level <= length (regexp_replace(t.error, '[^,]+')) + 1) as sys.OdciNumberList)) levels ...
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Encrypt and decrypt a string in C#?

...so too much work to alter this answer otherwise. private static byte[] _salt = __To_Do__("Add a app specific salt here"); /// <summary> /// Encrypt the given string using AES. The string can be decrypted using /// DecryptStringAES(). The sharedSecret parameters must match. ...
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Argparse: Required arguments listed under “optional arguments”?

...call them): parser = argparse.ArgumentParser(description='Foo') parser.add_argument('-o', '--output', help='Output file name', default='stdout') requiredNamed = parser.add_argument_group('required named arguments') requiredNamed.add_argument('-i', '--input', help='Input file name', required=True) p...
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Check whether a path is valid in Python without creating a file at the path's target

... tl;dr Call the is_path_exists_or_creatable() function defined below. Strictly Python 3. That's just how we roll. A Tale of Two Questions The question of "How do I test pathname validity and, for valid pathnames, the existence or writabilit...
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What is the printf format specifier for bool?

Since ANSI C99 there is _Bool or bool via stdbool.h . But is there also a printf format specifier for bool? 8 Answer...
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Is there an IDictionary implementation that, on missing key, returns the default value instead of th

...ctionary<TKey, TValue> { private IDictionary<TKey, TValue> _dict = new Dictionary<TKey, TValue>(); public TValue this[TKey key] { get { TValue val; if (!TryGetValue(key, out val)) return default(TValue); ...
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Automatic post-registration user authentication

...ple using the newly recommended AbstractController. Both the security.token_storage and the session services are registered in the parent getSubscribedServices method so you dont have to add those in your controller. use Symfony\Component\Security\Core\Authentication\Token\UsernamePasswordToken; us...
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This type of CollectionView does not support changes to its SourceCollection from a thread different

...cher.Invoke((Action)delegate // <--- HERE { _matchObsCollection.Add(match); }); } } share | improve this answer | foll...
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How can I create an error 404 in PHP?

My .htaccess redirects all requests to /word_here to /page.php?name=word_here . The PHP script then checks if the requested page is in its array of pages. ...
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Default template arguments for function templates

... typename Comp = std::less< typename std::iterator_traits<Iterator>::value_type> > void sort(Iterator beg, Iterator end, Comp c = Comp()) { ... } C++0x introduces them to C++. See this defect report by Bjarne Stroustrup: Default Template Arguments for Functio...