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How to upgrade PowerShell version from 2.0 to 3.0

The OS that I am using is Windows 7, and the PowerShell version that is installed here is 2.0. Is it possible for me to upgrade it to version 3.0 or 4.0? ...
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Best way to do multi-row insert in Oracle?

I'm looking for a good way to perform multi-row inserts into an Oracle 9 database. The following works in MySQL but doesn't seem to be supported in Oracle. ...
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Java 256-bit AES Password-Based Encryption

I need to implement 256 bit AES encryption, but all the examples I have found online use a "KeyGenerator" to generate a 256 bit key, but I would like to use my own passkey. How can I create my own key? I have tried padding it out to 256 bits, but then I get an error saying that the key is too long. ...
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How to get the body's content of an iframe in Javascript?

What I want to get is: 9 Answers 9 ...
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Error on pod install

I have a working project the uses a pod file for some weeks now. When I learned that some of my pods have update I tried to 'pod install' on got this weird error ...
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Why doesn't GCC optimize a*a*a*a*a*a to (a*a*a)*(a*a*a)?

I am doing some numerical optimization on a scientific application. One thing I noticed is that GCC will optimize the call pow(a,2) by compiling it into a*a , but the call pow(a,6) is not optimized and will actually call the library function pow , which greatly slows down the performance. (In ...
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How to create a temporary directory/folder in Java?

Is there a standard and reliable way of creating a temporary directory inside a Java application? There's an entry in Java's issue database , which has a bit of code in the comments, but I wonder if there is a standard solution to be found in one of the usual libraries (Apache Commons etc.) ? ...
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Why aren't pointers initialized with NULL by default?

Can someone please explain why pointers aren't initialized to NULL ? Example: 15 Answers ...
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How do I list the functions defined in my shell?

I can type alias to show a list of all the aliases. 8 Answers 8 ...
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How to update column with null value

I am using mysql and need to update a column with a null value. I have tried this many different ways and the best I have gotten is an empty string. ...