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Entity Framework: “Store update, insert, or delete statement affected an unexpected number of rows (
I am using Entity Framework to populate a grid control. Sometimes when I make updates I get the following error:
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What are copy elision and return value optimization?
What is copy elision? What is (named) return value optimization? What do they imply?
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What is a Python egg?
I'm new to Python and am just trying to understand how its packages work. Presumably "eggs" are some sort of packaging mechanism, but what would be a quick overview of what role they play and may be some information on why they're useful and how to create them?
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What is meant by immutable?
This could be the dumbest question ever asked but I think it is quite confusing for a Java newbie.
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Environment variable substitution in sed
If I run these commands from a script:
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Remove excess whitespace from within a string
I receive a string from a database query, then I remove all HTML tags, carriage returns and newlines before I put it in a CSV file. Only thing is, I can't find a way to remove the excess white space from between the strings.
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Execute script after specific delay using JavaScript
Is there any JavaScript method similar to the jQuery delay() or wait() (to delay the execution of a script for a specific amount of time)?
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How do I check out a remote Git branch?
Somebody pushed a branch called test with git push origin test to a shared repository. I can see the branch with git branch -r .
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How to cast Object to its actual type?
If I have:
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Java RegEx meta character (.) and ordinary dot?
In Java RegEx, how to find out the difference between . (dot) the meta character and the normal dot as we using in any sentence. How to handle this kind of situation for other meta characters too like ( * , + , \d ,...)
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