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Difference between timestamps with/without time zone in PostgreSQL

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How to fix Git error: object file is empty?

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Should I return a Collection or a Stream?

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Why are floating point numbers inaccurate?

...icand). A very simple number, say 9.2, is actually this fraction: 5179139571476070 * 2 -49 Where the exponent is -49 and the mantissa is 5179139571476070. The reason it is impossible to represent some decimal numbers this way is that both the exponent and the mantissa must be integers. In othe...
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What is the meaning of the term “thread-safe”?

Does it mean that two threads can't change the underlying data simultaneously? Or does it mean that the given code segment will run with predictable results when multiple threads are executing that code segment? ...
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How do I determine the size of an object in Python?

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Why do we need boxing and unboxing in C#?

... | edited Dec 3 '16 at 7:19 Dmitry Egorov 8,99233 gold badges1616 silver badges3333 bronze badges ...
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Understanding NSRunLoop

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Convert Django Model object to dict with all of the fields intact

...del object>, '_state': <django.db.models.base.ModelState at 0x7ff0993f6908>, 'auto_now_add': datetime.datetime(2018, 12, 20, 21, 34, 29, 494827, tzinfo=<UTC>), 'foreign_key_id': 2, 'id': 1, 'normal_value': 1, 'readonly_value': 2} This is by far the simplest, but is missing man...
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Is SHA-1 secure for password storage?

...e its output to 160 or 128 bits (to save on storage cost). Some of the SHA-3 round-2 candidates appear to be faster than SHA-1 while being arguably "more secure"; yet they are still a bit new, so sticking to SHA-256 or SHA-512 would be a safer route right now. It would make you look professional and...