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What's the best practice for primary keys in tables?
When designing tables, I've developed a habit of having one column that is unique and that I make the primary key. This is achieved in three ways depending on requirements:
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JavaScript variable assignments from tuples
...ne and assign values to a tuple variable, and retrieve their values like this:
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MySQL: Transactions vs Locking Tables
..., in and of themselves, will NOT ensure that your logic comes out in a consistent state.
Think of a banking system. When you pay a bill online, there's at least two accounts affected by the transaction: Your account, from which the money is taken. And the receiver's account, into which the money is...
Why can I initialize a List like an array in C#?
Today I was surprised to find that in C# I can do:
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Scala: write string to file in one statement
For reading files in Scala, there is
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iOS: Modal ViewController with transparent background
... present a view controller modally, with a transparent background. My goal is to let both the presenting and presented view controllers's view to be displayed at the same time. The problem is, when the presenting animation finishes, the presenting view controller's view disappears.
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How to record webcam and audio using webRTC and a server-based Peer connection
... can also find some examples for the application you are planning here. It is really easy to add recording capabilities to that demo, and store the media file in a URI (local disk or wherever).
The project is licensed under LGPL Apache 2.0
EDIT 1
Since this post, we've added a new tutorial that...
How to secure database passwords in PHP?
...lly needs to pass a login and password. If I'm using a single, minimum-permission login for my application, then the PHP needs to know that login and password somewhere. What is the best way to secure that password? It seems like just writing it in the PHP code isn't a good idea.
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Should Jquery code go in header or footer?
Where is the best place to put Jquery code (or separate Jquery file)? Will pages load faster if I put it in the footer?
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What's the difference between text/xml vs application/xml for webservice response
This is more of a general question about the difference between text/xml and application/xml .
I am fairly new to writing webservices (REST - Jersey). I have been producing application/xml since it is what shows up in most tutorials / code examples that I have been using to learn, but I recentl...