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What rules does Pandas use to generate a view vs a copy?
I'm confused about the rules Pandas uses when deciding that a selection from a dataframe is a copy of the original dataframe, or a view on the original.
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Constructor of an abstract class in C#
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Because there might be a standard way you want to instantiate data in the abstract class. That way you can have classes that inherit from that class call the base constructor.
public abstract class A{
private string data;
protected A(string...
How to reverse-i-search back and forth? [duplicate]
I use reverse-i-search often, and that's cool. Sometime though when pressing CTRL + r multiple times, I pass the command I am actually looking for. Because CTRL + r searches backward in history, from newest to oldest, I have to:
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How do I list all tables in a schema in Oracle SQL?
...NCT OWNER, OBJECT_NAME
FROM DBA_OBJECTS
WHERE OBJECT_TYPE = 'TABLE'
AND OWNER = '[some other schema]'
Without those system privileges, you can only see tables you have been granted some level of access to, whether directly or through a role.
SELECT DISTINCT OWNER, OBJECT_NAME
FROM ALL_O...
Can't connect to local MySQL server through socket '/var/mysql/mysql.sock' (38)
...ysql/mysql.sock
you can check if mysql is running with the following command:
mysqladmin -u root -p status
try changing your permission to mysql folder. If you are working locally, you can try:
sudo chmod -R 755 /var/lib/mysql/
that solved it for me
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How to kill all processes with a given partial name? [closed]
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Use pkill -f, which matches the pattern for any part of the command line
pkill -f my_pattern
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Debugging Package Manager Console Update-Database Seed Method
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The way I solved this was to open a new instance of Visual Studio and then open the same solution in this new instance of Visual Studio. I then attached the debugger in this new instance to the old instance (devenv.exe) while running the update-database command. This allowed me to debug t...
What does '--set-upstream' do?
...efault remote branch for the current local branch.
Any future git pull command (with the current local branch checked-out),
will attempt to bring in commits from the <remote-branch> into the current local branch.
One way to avoid having to explicitly type --set-upstream is to use its shortha...
Remove Application Insight from application on Visual Studio 2013
...pplication insight to a project which creates a ApplicationInsights.config and not sure what other files were added to the project.
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How to enter command with password for git pull?
I want to do this command in one line:
6 Answers
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