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How to check Oracle database for long running queries
My application, which uses an Oracle database, is going slow or appears to have stopped completely.
8 Answers
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What does |= (single pipe equal) and &=(single ampersand equal) mean
In below lines:
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How to download a branch with git?
I have a project hosted on GitHub. I created a branch on one computer, then pushed my changes to GitHub with:
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What is the difference D3 datum vs. data?
Can someone please explain the difference between datum() and data() in D3.js? I see both being used and I am not sure why you should choose one over the other?
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Removing a list of characters in string
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If you're using python2 and your inputs are strings (not unicodes), the absolutely best method is str.translate:
>>> chars_to_remove = ['.', '!', '?']
>>> subj = 'A.B!C?'
>>> subj.translate(None, ''.join(chars_to_remove))
'ABC'
Otherwise, there are following options t...
disable maven download progress indication
In our company in the CI machines maven local repository is purged before every build. As result my build logs always have a bunch of noise like this
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What is the difference between the add and offer methods in a Queue in Java?
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I guess the difference is in the contract, that when element can not be added to collection the add method throws an exception and offer doesn't.
From: http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html#add%28E%29
If a collection refuses to add a
particular element for an...
How can two strings be concatenated?
How can I concatenate (merge, combine) two values?
For example I have:
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Can you provide some examples of why it is hard to parse XML and HTML with a regex? [closed]
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Here's some fun valid XML for you:
<!DOCTYPE x [ <!ENTITY y "a]>b"> ]>
<x>
<a b="&y;>" />
<![CDATA[[a>b <a>b <a]]>
<?x <a> <!-- <b> ?> c --> d
</x>
And this little bundle of joy is valid HTML:
<!DOC...
Is there a range class in C++11 for use with range based for loops?
I found myself writing this just a bit ago:
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