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Is there any difference between “!=” and “” in Oracle Sql?
...re are any differences in between the two not equal operators <> and != in Oracle.
4 Answers
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NumPy array initialization (fill with identical values)
...th certain values, because it explicitly describes what is being achieved (and it can in principle be very efficient since it performs a very specific task).
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What is the purpose of Flask's context stacks?
...n using the request/application context for some time without fully understanding how it works or why it was designed the way it was. What is the purpose of the "stack" when it comes to the request or application context? Are these two separate stacks, or are they both part of one stack? Is the requ...
How to move an iFrame in the DOM without losing its state?
...s related to the bounty by @djechlin
A lot of search on the w3/dom specs and didn't find anything final that specifically says that iframe should be reloaded while moving in the DOM tree, however I did find lots of references and comments in the webkit's trac/bugzilla/microsoft regarding different...
Reading ePub format
...out how to download the EPUB, to unzip it somewhere, to parse the manifest and then to display the relevant content.
Some pointers if you're just starting out:
parse xml
unzip
To display content just use a UIWebView for now.
Here's a high level step by step for your code:
1) create a view wi...
Java Multiple Inheritance
In an attempt to fully understand how to solve Java's multiple inheritance problems I have a classic question that I need clarified.
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Why does sun.misc.Unsafe exist, and how can it be used in the real world?
I came across the sun.misc.Unsafe package the other day and was amazed at what it could do.
16 Answers
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How to make inline functions in C#
...ored
{
Console.WriteLine("Hello world!");
}
Lambdas are new in C# 3.0 and come in two flavours.
Expression lambdas:
Func<int, int, int> add = (int x, int y) => x + y; // or...
Func<int, int, int> add = (x, y) => x + y; // types are inferred by the compiler
Statement lambda...
Hidden Features of Xcode
...h a huge influx of newbies to Xcode, I'm sure there are lots of Xcode tips and tricks to be shared.
89 Answers
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Java Timer vs ExecutorService?
...code where I schedule a task using java.util.Timer . I was looking around and saw ExecutorService can do the same. So this question here, have you used Timer and ExecutorService to schedule tasks, what is the benefit of one using over another?
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