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How do I interpret precision and scale of a number in a database?
I have the following column specified in a database: decimal(5,2)
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Why does Oracle 9i treat an empty string as NULL?
I know that it does consider ' ' as NULL , but that doesn't do much to tell me why this is the case. As I understand the SQL specifications, ' ' is not the same as NULL -- one is a valid datum, and the other is indicating the absence of that same information.
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Test if a property is available on a dynamic variable
My situation is very simple. Somewhere in my code I have this:
14 Answers
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How can I push a specific commit to a remote, and not previous commits?
I have made several commits on different files, but so far I would like to push to my remote repository only a specific commit.
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Is the order of iterating through std::map known (and guaranteed by the standard)?
What I mean is - we know that the std::map 's elements are sorted according to the keys. So, let's say the keys are integers. If I iterate from std::map::begin() to std::map::end() using a for , does the standard guarantee that I'll iterate consequently through the elements with keys, sorted i...
Why is (object)0 == (object)0 different from ((object)0).Equals((object)0)?
Why are the following expressions different?
7 Answers
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How to execute shell command in Javascript
I want to write a JavaScript function which will execute the system shell commands ( ls for example) and return the value.
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Security of REST authentication schemes
Background:
6 Answers
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Dynamic variable names in Bash
I am confused about a bash script.
14 Answers
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What exactly is Apache Camel?
I don't understand what exactly Camel does.
23 Answers
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