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PostgreSQL Crosstab Query
Does any one know how to create crosstab queries in PostgreSQL?
For example I have the following table:
6 Answers
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What is the purpose of Node.js module.exports and how do you use it?
What is the purpose of Node.js module.exports and how do you use it?
12 Answers
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Formatting Decimal places in R
I have a number, for example 1.128347132904321674821 that I would like to show as only two decimal places when output to screen (or written to a file). How does one do that?
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How can I select from list of values in SQL Server
I have very simple problem that I can't solve. I need to do something like this:
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Finding what branch a Git commit came from
Is there a way to find out what branch a commit comes from given its SHA-1 hash value?
14 Answers
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Call apply-like function on each row of dataframe with multiple arguments from each row
I have a dataframe with multiple columns. For each row in the dataframe, I want to call a function on the row, and the input of the function is using multiple columns from that row. For example, let's say I have this data and this testFunc which accepts two args:
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jquery .html() vs .append()
Lets say I have an empty div:
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Way to go from recursion to iteration
I've used recursion quite a lot on my many years of programming to solve simple problems, but I'm fully aware that sometimes you need iteration due to memory/speed problems.
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Do I need to convert .CER to .CRT for Apache SSL certificates? If so, how?
I need to setup an Apache 2 server with SSL.
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How do I convert an existing callback API to promises?
I want to work with promises but I have a callback API in a format like:
20 Answers
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