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Cloning a MySQL database on the same MySql instance
I would like to write a script which copies my current database sitedb1 to sitedb2 on the same mysql database instance. I know I can dump the sitedb1 to a sql script:
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When to use next() and return next() in Node.js
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Some people always write return next() is to ensure that the execution stops after triggering the callback.
If you don't do it, you risk triggering the callback a second time later, which usually has devastating results. Your code is fine as it is, but...
How to convert a number to string and vice versa in C++
Since this question gets asked about every week, this FAQ might help a lot of users.
4 Answers
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How to integrate nodeJS + Socket.IO and PHP?
I have recently been looking around, to find a good way to communicate between nodeJS and PHP. Here is the idea : nodeJS is still quite new, and it can be kind of tricky to develop a full application only with it. Moreover, you may need it only for one module of your project, like realtime notificat...
What's to stop malicious code from spoofing the “Origin” header to exploit CORS?
The way I understand it, if a client-side script running on a page from foo.com wants to request data from bar.com, in the request it must specify the header Origin: http://foo.com , and bar must respond with Access-Control-Allow-Origin: http://foo.com .
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Best practices/guidance for maintaining assembly version numbers
I'm looking for pointers, suggestions, and even dictation on how to manage the three different assembly version numbers for a .NET assembly. The Product version is the simplest, as this seems would normally be dictated by business. Then, the file version seems to be for versioning between deploym...
RabbitMQ and relationship between channel and connection
...ts a real TCP connection to the message broker, whereas a Channel is a virtual connection (AMQP connection) inside it. This way you can use as many (virtual) connections as you want inside your application without overloading the broker with TCP connections.
You can use one Channel for everything. H...
How many GCC optimization levels are there?
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To be pedantic, there are 8 different valid -O options you can give to gcc, though there are some that mean the same thing.
The original version of this answer stated there were 7 options. GCC has since added -Og to bring the total to 8
From the man page:
-O (Same as -O1) ...
How to use glOrtho() in OpenGL?
I can't understand the usage of glOrtho . Can someone explain what it is used for?
3 Answers
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Difference between CouchDB and Couchbase
Are there any essential differences between CouchDB and Couchbase .
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