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How to select only the records with the highest date in LINQ

I have a table, 'lasttraces', with the following fields. 5 Answers 5 ...
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How to set initial size of std::vector?

I have a vector<CustomClass*> and I put a lot of items in the vector and I need fast access, so I don't use list. How to set initial size of vector (for example to be 20 000 places, so to avoid copy when I insert new)? ...
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setMaxResults for Spring-Data-JPA annotation?

I am trying to incorporate Spring-Data-JPA into my project. One thing that confuses me is how do I achieve setMaxResults(n) by annotation ? ...
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Negation in Python

I'm trying to create a directory if the path doesn't exist, but the ! (not) operator doesn't work. I'm not sure how to negate in Python... What's the correct way to do this? ...
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How do I save and restore multiple variables in python?

I need to save about a dozen objects to a file and then restore them later. I've tried to use a for loop with pickle and shelve but it didn't work right. ...
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Python - write() versus writelines() and concatenated strings

So I'm learning Python. I am going through the lessons and ran into a problem where I had to condense a great many target.write() into a single write() , while having a "\n" between each user input variable(the object of write() ). ...
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Generating Random Passwords

When a user on our site loses his password and heads off to the Lost Password page we need to give him a new temporary password. I don't really mind how random this is, or if it matches all the "needed" strong password rules, all I want to do is give them a password that they can change later. ...
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static allocation in java - heap, stack and permanent generation

I have been lately reading a lot on memory allocation schemes in java, and there have been many doubts as I have been reading from various sources. I have collected my concepts, and I would request to go through all of the points and comment on them. I came to know that memory allocation is JVM spec...
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passing several arguments to FUN of lapply (and others *apply)

I have a question regarding passing multiple arguments to a function, when using lapply in R . 4 Answers ...
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Is it possible in SASS to inherit from a class in another file?

The question pretty much says it all. 4 Answers 4 ...