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Altering a column: null to not null
I have a table that has several nullable integer columns. This is undesirable for several reasons, so I am looking to update all nulls to 0 and then set these columns to NOT NULL . Aside from changing nulls to 0 , data must be preserved.
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Inserting a string into a list without getting split into characters
I'm new to Python and can't find a way to insert a string into a list without it getting split into individual characters:
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How to compile a static library in Linux?
I have a question: How to compile a static library in Linux with gcc , i.e. I need to compile my source code into a file named out.a. Is it sufficient to simply compile with the command gcc -o out.a out.c ? I'm not quite familiar with gcc , hope anyone can give me a hand.
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Merging 2 branches together in GIT
I've only just started to use GIT and think its wonderful, however I'm a little confused over what the merge command does.
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What is the correct way to get a subarray in Scala?
I am trying to get a subarray in scala, and I am a little confused on what the proper way of doing it is. What I would like the most would be something like how you can do it in python:
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What is the meaning of CTOR?
In a lot of C# files I save regions tags(?) that are named CTOR or ctor. What's the meaning of ctor? Why is such a region called ctor?
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Adding a regression line on a ggplot
I'm trying hard to add a regression line on a ggplot. I first tried with abline but I didn't manage to make it work. Then I tried this...
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How can I reference a commit in an issue comment on GitHub?
I find a lot of answers on how to reference a GitHub issue in a git commit (using the #xxx notation).
I'd like to reference a commit in my comment, generating a link to the commit details page?
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What is the difference between JDK dynamic proxy and CGLib?
In case of the Proxy Design Pattern , What is the difference between JDK's Dynamic Proxy and third party dynamic code generation API s such as CGLib ?
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How to flatten only some dimensions of a numpy array
Is there a quick way to "sub-flatten" or flatten only some of the first dimensions in a numpy array?
4 Answers
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