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How to select rows with no matching entry in another table?
...doing some maintenance work on a database application and I've discovered that, joy of joys, even though values from one table are being used in the style of foreign keys, there's no foreign key constraints on the tables.
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Deleting queues in RabbitMQ
I have a few queues running with RabbitMQ. A few of them are of no use now, how can I delete them? Unfortunately I had not set the auto_delete option.
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C++ Modules - why were they removed from C++0x? Will they be back later on?
I just discovered this old C++0x draft about modules in C++0x.
4 Answers
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How to call a method after bean initialization is complete?
I have a use case where I need to call a (non-static) method in the bean only-once at the ApplicationContext load up. Is it ok, if I use MethodInvokingFactoryBean for this? Or we have a some better solution?
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Copying files from one directory to another in Java
I want to copy files from one directory to another (subdirectory) using Java. I have a directory, dir, with text files. I iterate over the first 20 files in dir, and want to copy them to another directory in the dir directory, which I have created right before the iteration.
In the code, I want to c...
Camera orientation issue in Android
I am building an application that uses camera to take pictures. Here is my source code to do this:
15 Answers
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How do you detect/avoid Memory leaks in your (Unmanaged) code? [closed]
In unmanaged C/C++ code, what are the best practices to detect memory leaks? And coding guidelines to avoid? (As if it's that simple ;)
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How to uncheck a radio button?
I have group of radio buttons that I want to uncheck after an AJAX form is submitted using jQuery. I have the following function:
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How to list all functions in a Python module?
I have a python module installed on my system and I'd like to be able to see what functions/classes/methods are available in it.
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Display help message with python argparse when script is called without any arguments
This might be a simple one. Assume I have a program that uses argparse to process command line arguments/options. The following will print the 'help' message:
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