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What's wrong with foreign keys?
I remember hearing Joel Spolsky mention in podcast 014 that he'd barely ever used a foreign key (if I remember correctly). However, to me they seem pretty vital to avoid duplication and subsequent data integrity problems throughout your database.
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Read first N lines of a file in python
...data file that we would like to trim to a specified size.
I am experienced in .net c#, however would like to do this in python to simplify things and out of interest.
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Linux vi arrow keys broken in insert mode
My arrow keys don't work in vi in insert mode at home, they just each insert a newline and a capital letter, like 'A'. Is there a way to fix that?
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Split list into smaller lists (split in half)
I am looking for a way to easily split a python list in half.
17 Answers
17
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How to modify a global variable within a function in bash?
I'm working with this:
8 Answers
8
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Pythonic way to find maximum value and its index in a list?
If I want the maximum value in a list, I can just write max(List) , but what if I also need the index of the maximum value?
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Difference between a user and a schema in Oracle?
What is the difference between a user and a schema in Oracle?
15 Answers
15
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How do I disable a Pylint warning?
I'm trying to disable warning C0321 ("more than one statement on a single line" -- I often put if statements with short single-line results on the same line), in Pylint 0.21.1 (if it matters: astng 0.20.1, common 0.50.3, Python 2.6.6 (r266:84292, Sep 15 2010, 16:22:56)).
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How to use WeakReference in Java and Android development?
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Using a WeakReference in Android isn't any different than using one in plain old Java. Here is a great guide which gives a detailed explanation: Understanding Weak References.
You should think about using one whenever you nee...
Unable to simultaneously satisfy constraints, will attempt to recover by breaking constraint
Below is the error message I receive in the debug area. It runs fine and nothing is wrong except that I receive this error. Would this prevent apple accepting the app? How do I fix it?
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