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Right query to get the current number of connections in a PostgreSQL DB
Which of the following two is more accurate?
6 Answers
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Subqueries vs joins
I refactored a slow section of an application we inherited from another company to use an inner join instead of a subquery like:
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What is the best way to get all the divisors of a number?
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What does .SD stand for in data.table in R
.SD looks useful but I do not really know what I am doing with it. What does it stand for? Why is there a preceding period (full stop). What is happening when I use it?
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Python Script execute commands in Terminal
I read this somewhere a while ago but cant seem to find it. I am trying to find a command that will execute commands in the terminal and then output the result.
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How to get a complete list of ticker symbols from Yahoo Finance? [closed]
I've googled endlessly for a method of getting a complete (and daily updated) list of all Yahoo ticker symbols available through http://finance.yahoo.com
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Draw in Canvas by finger, Android
I need to build a project for drawing on canvas by fingers,
6 Answers
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No newline at end of file
When doing a git diff it says "No newline at end of file" .
12 Answers
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How do I clear the terminal screen in Haskell?
How can I clear a terminal screen after my user has selected an option from my application's menu?
8 Answers
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Django - limiting query results
I want to take the last 10 instances of a model and have this code:
5 Answers
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