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Are foreign keys really necessary in a database design?
... ON DELETE CASCADE. This means that if you have one table containing users and another containing orders or something, then deleting a user could automatically delete all orders that point to that user.
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CSS opacity only to background color, not the text on it? [duplicate]
...assign the opacity property to the background property of a div only and not to the text on it?
11 Answers
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How to copy files between two nodes using ansible
...ate_to: serverB cannot be used, because that would make serverB the source and destination.
– Strahinja Kustudic
Apr 19 '16 at 22:10
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How do I get the current time only in JavaScript
How can I get the current time in JavaScript and use it in a timepicker?
18 Answers
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How to do multiple arguments to map function where one remains the same in python?
...ally is an issue for you, the speed difference between list comprehensions and map() won't help either way.
– Sven Marnach
May 31 '12 at 13:54
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Deep copy of a dict in python
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Is there any difference in Python 3.2 and 2.7 codes? They seem identical to me. If so, would be better a single block of code and a statement "Works for both Python 3 and 2"
– MestreLion
Jun 7 '14 at 3:59
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What is a provisioning profile used for when developing iPhone applications?
What is the purpose of a provisioning profile and why is it needed when developing an iPhone application? If I don't have a provisioning profile, what happens?
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Android View shadow
I searched around, and I could not find a proper way to do this. I want to have the following shadow effects on my views:
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Add x and y labels to a pandas plot
Suppose I have the following code that plots something very simple using pandas:
7 Answers
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Fixed width buttons with Bootstrap
...otstrap support fixed width buttons? Currently if I have 2 buttons, "Save" and "Download", the button size changes based on content.
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