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MYSQL Dump only certain rows

I am trying to do a mysql dump of a few rows in my database. I can then use the dump to upload those few rows into another database. The code I have is working, but it dumps everything. How can I get mysqldump to only dump certain rows of a table? ...
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Using smart pointers for class members

I'm having trouble understanding the usage of smart pointers as class members in C++11. I have read a lot about smart pointers and I think I do understand how unique_ptr and shared_ptr / weak_ptr work in general. What I don't understand is the real usage. It seems like everybody recommends using...
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How do I pass multiple parameters in Objective-C?

I have read several of the post about Objective-C method syntax but I guess I don't understand multiple names for a method. ...
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Swift variable decorations with “?” (question mark) and “!” (exclamation mark)

I understand that in Swift all variables must be set with a value, and that by using optionals we can set a variable to be set to nil initially. ...
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How to erase the file contents of text file in Python?

I have text file which I want to erase in Python. How do I do that? 12 Answers 12 ...
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Format a date using the new date time API

I was playing with the new date time API but when running this: 3 Answers 3 ...
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In Python, how do you convert seconds since epoch to a `datetime` object?

The time module can be initialized using seconds since epoch: 4 Answers 4 ...
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Why Func instead of Predicate?

This is just a curiosity question I was wondering if anyone had a good answer to: 4 Answers ...
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How to remove duplicate values from a multi-dimensional array in PHP

How can I remove duplicate values from a multi-dimensional array in PHP? 19 Answers 19...
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How to generate a Dockerfile from an image?

Is it possible to generate a Dockerfile from an image? I want to know for two reasons: 8 Answers ...