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How can I define a composite primary key in SQL?
How can I define a composite primary key consisting of two fields in SQL?
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What is the most efficient way to create a dictionary of two pandas Dataframe columns?
What is the most efficient way to organise the following pandas Dataframe:
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Why do you not use C for your web apps?
I was having a look at a few different web servers this morning when I came across G-WAN . As I understand, its a web server written in C and you have to make use of it by writing your websites/webapps in C. One clear benefit is speed as the G-WAN site suggests.
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Linq: GroupBy, Sum and Count
I have a collection of products
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DbArithmeticExpression arguments must have a numeric common type
This Linq expression throws this exception:
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Regular expression to limit number of characters to 10
I am trying to write a regular expression that will only allow lowercase letters and up to 10 characters. What I have so far looks like this:
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Difference between final static and static final
I found a code where it declared code like
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How to find the length of a string in R
How to find the length of a string (number of characters in a string) without splitting it in R? I know how to find the length of a list but not of a string.
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Make Heroku run non-master Git branch
I have a project hosted on Heroku and it's gotten to the point where I want to make an alternate test server (so I can test Heroku workers without messing up production).
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Mixins vs. Traits
What is the difference between Mixins and Traits?
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