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Amazon SimpleDB vs Amazon DynamoDB
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While SimpleDB has scaling limitations, it may be a good fit for
smaller workloads that require query flexibility. Amazon SimpleDB
automatically indexes all item attributes and thus supports query
flexibility at the cost of performance and scale.
So it's a trade off between performance...
Is it worth hashing passwords on the client side
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Basically, your friend is right. But simply hashing the password on the client side is only just better than submitting it as plain text to the server. Someone, who can listen for your plain text passwords is certainly also able t...
Find the host name and port using PSQL commands
...it would be the same host as the web server if one wasn't specified. Typically this would be configured as localhost, assuming your web server and database server are on the same host.
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How to bind inverse boolean properties in WPF?
...f you have 100 objects, you would have to add an IsNotReadOnly property to all 100 objects. That property would have to be a DependencyProperty. That adds about 10 lines of code to all 100 objects or 1000 lines of code. The Converter is 20 lines of code. 1000 lines or 20 lines. Which would you choos...
Is there a Max function in SQL Server that takes two values like Math.Max in .NET?
...al2
return @val1
return isnull(@val2,@val1)
end
... and you would call it like so ...
SELECT o.OrderId, dbo.InlineMax(o.NegotiatedPrice, o.SuggestedPrice)
FROM Order o
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How do CUDA blocks/warps/threads map onto CUDA cores?
I have been using CUDA for a few weeks, but I have some doubts about the allocation of blocks/warps/thread.
I am studying the architecture from a didactic point of view (university project), so reaching peak performance is not my concern.
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Cosmic Rays: what is the probability they will affect a program?
...rom Wikipedia:
Studies by IBM in the 1990s suggest that computers typically experience about one cosmic-ray-induced error per 256 megabytes of RAM per month.[15]
This means a probability of 3.7 × 10-9 per byte per month, or 1.4 × 10-15 per byte per second. If your program runs for 1 minute a...
Java: Instanceof and Generics
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The error message says it all. At runtime, the type is gone, there is no way to check for it.
You could catch it by making a factory for your object like this:
public static <T> MyObject<T> createMyObject(Class<T> type) {
retu...
Git - fatal: Unable to create '/path/my_project/.git/index.lock': File exists
... directory. The error message is rather explicit as to what causes it typically, so if you have no other git processes running (which is the normal case), go ahead and delete that file.
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WCF service startup error “This collection already contains an address with scheme http”
...n containing a WCF service contract and a Silverlight control which makes calls to that WCF service. On my development and test servers it works great.
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