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Replacement for “rename” in dplyr
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edited Apr 14 '17 at 5:16
Richard
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When should I use semicolons in SQL Server?
...QL Server Management Studio I have noticed that some statements are ended with a semicolon.
13 Answers
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How to use UTF-8 in resource properties with ResourceBundle
... ResourceBundle . When I enter the text directly into the properties file, it displays as mojibake.
16 Answers
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Strings as Primary Keys in SQL Database [closed]
I am not very familiar with databases and the theories behind how they work. Is it any slower from a performance standpoint (inserting/updating/querying) to use Strings for Primary Keys than integers?
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Git: can I suppress listing of 'modified content'/dirty submodule entries in status, diff, etc?
Somewhen (around the 1.6.x releases, I think) git became aware of changes inside submodules. That only serves to annoy me:
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Display image as grayscale using matplotlib
...olormap. I need the grayscale because I want to draw on top of the image with color.
7 Answers
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URLWithString: returns nil
it may be very easy, but I don't seems to find out why is URLWithString: returning nil here.
7 Answers
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Rails Observer Alternatives for 4.0
With Observers officially removed from Rails 4.0 , I'm curious what other developers are using in their place. (Other than using the extracted gem.) While Observers were certainly abused and could easily become unwieldily at times, there were many use-cases outside of just cache-clearing where they...
Origin null is not allowed by Access-Control-Allow-Origin
I have made a small xslt file to create an html output called weather.xsl with code as follows:
7 Answers
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Check if Python Package is installed
What's a good way to check if a package is installed while within a Python script? I know it's easy from the interpreter, but I need to do it within a script.
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