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How do I limit the number of rows returned by an Oracle query after ordering?
Is there a way to make an Oracle query behave like it contains a MySQL limit clause?
17 Answers
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Using python map and other functional tools
This is quite n00bish, but I'm trying to learn/understand functional programming in python. The following code:
9 Answers
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How to check if a specified key exists in a given S3 bucket using Java
I would like to check if a key exists in a given bucket using Java. I looked at the API but there aren't any methods that are useful. I tried to use getObject but it threw an exception.
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Gem::LoadError for mysql2 gem, but it's already in Gemfile
This error occurred while loading the following files:
14 Answers
14
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Getting a list of values from a list of dicts
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Assuming every dict has a value key, you can write (assuming your list is named l)
[d['value'] for d in l]
If value might be missing, you can use
[d['value'] for d in l if 'value' in d]
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A potentially dangerous Request.Form value was detected from the client
Every time a user posts something containing < or > in a page in my web application, I get this exception thrown.
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How to check if a number is a power of 2
Today I needed a simple algorithm for checking if a number is a power of 2.
25 Answers
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Trim trailing spaces in Xcode
Is there a way to force Xcode to trim trailing whitespaces when I save file?
7 Answers
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Max parallel http connections in a browser?
I am creating some suspended connections to an HTTP server (comet, reverse ajax, etc). It works ok, but I see the browser only allows two suspended connections to a given domain simultaneously. So if a user is looking at my website in Tab1 of their browser, then also tries loading it in Tab2, they'v...
Matplotlib scatter plot with different text at each data point
I am trying to make a scatter plot and annotate data points with different numbers from a list.
So, for example, I want to plot y vs x and annotate with corresponding numbers from n .
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