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Database Structure for Tree Data Structure
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Joe Celko has written a book on this subject, which is a good reference from a general SQL perspective (it is mentioned in the nested set article link above).
Also, Itzik Ben-Gann has a good overview of the most common options in his book "Inside Microsoft SQL Server 2005: T-SQL Querying".
The ...
How to close a Java Swing application from the code
What is the proper way to terminate a Swing application from the code, and what are the pitfalls?
9 Answers
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javascript: Clear all timeouts?
Is there a way to clear all time outs from a given window? I suppose the timeouts are stored somewhere in the window object but couldn't confirm that.
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Git authentication fails after enabling 2FA
...username and password but that didn't work. In particular, when switching from https to ssh, the ssh key gives
8 Answers
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git: Switch branch and ignore any changes without committing
... switching branches, proceed even if the index or the working tree differs from HEAD. This is used to throw away local changes. )
Or, more recently:
With Git 2.23 (August 2019) and the new command git switch:
git switch -f <branch-name>
(-f is short for --force, which is an alias for --dis...
RabbitMQ and relationship between channel and connection
...epts are not tied together.
Each Consumer runs in its own thread allocated from the consumer thread pool. If multiple Consumers are subscribed to the same Queue, the broker uses round-robin to distribute the messages between them equally. See Tutorial two: "Work Queues".
It is also possible to att...
Custom events in jQuery?
... custom eventhandling in jquery the best way. I know how to hook up events from the dom elements like 'click' etc, but I'm building a tiny javascript library/plugin to handle some preview functionality.
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How do you kill a Thread in Java?
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I use method getConnection() from java.sql.DriverManager. If the connection attemt takes too long I try to kill the corresponding thread by calling Thread.interrupt() but it doesn't influence the thread at all. The Thread.stop() works however, although o...
How do I use arrays in C++?
C++ inherited arrays from C where they are used virtually everywhere. C++ provides abstractions that are easier to use and less error-prone ( std::vector<T> since C++98 and std::array<T, n> since C++11 ), so the need for arrays does not arise quite as often as it does in C. However, ...
returning in the middle of a using block
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@James Curran. From top to here, Only you explained what happed in the background. Many thanks.
– Sercan Timoçin
Sep 10 '19 at 15:18
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