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Database design for a survey [closed]
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| UserName |
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Each question is going to probably have a set number of answers which the user can select from, then the actual responses are going to be tracked in another table.
Databases are designed to store a lot of data, and most scale very well. There is no real need to use...
What is the usefulness of `enable_shared_from_this`?
I ran across enable_shared_from_this while reading the Boost.Asio examples and after reading the documentation I am still lost for how this should correctly be used. Can someone please give me an example and explanation of when using this class makes sense.
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How do you fix a bad merge, and replay your good commits onto a fixed merge?
...move the history of a file completely from
git:
Amending commits.
Hard resets (possibly plus a rebase).
Non-interactive rebase.
Interactive rebases.
Filtering branches.
In the case of the original poster, amending the commit isn't really an option
by itself, since he made several additional comm...
Which is faster in Python: x**.5 or math.sqrt(x)?
I've been wondering this for some time. As the title say, which is faster, the actual function or simply raising to the half power?
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Why is sizeof considered an operator?
Why is sizeof considered an operator and not a function?
10 Answers
10
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In Python how should I test if a variable is None, True or False
I have a function that can return one of three things:
6 Answers
6
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Extract digits from a string in Java
I have a Java String object. I need to extract only digits from it. I'll give an example:
14 Answers
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How to remove the first Item from a list?
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Formula px to dp, dp to px android
... on different devices. Of course if the xdpi/ydpi inputs are not correctly set by some devices, it wont't work there.
– Bachi
Apr 15 '14 at 21:13
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