大约有 43,000 项符合查询结果(耗时:0.0696秒) [XML]
How do you do a limit query in JPQL or HQL?
... HQL parser would replace the bits of the query that it recognised as HQL, and leave the rest as it was, so you could sneak in some native SQL. Hibernate 3, however, has a proper AST HQL Parser, and it's a lot less forgiving.
I think Query.setMaxResults() really is your only option.
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When do I use fabs and when is it sufficient to use std::abs?
I assume that abs and fabs are behaving different when using math.h . But when I use just cmath and std::abs , do I have to use std::fabs or fabs ? Or isn't this defined?
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Strange out of memory issue while loading an image to a Bitmap object
...n returns from the activity back to the listview activity to the result handler to relaunch my new activity which is nothing more than an image widget.
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Pickle or json?
...ed to save to disk a little dict object whose keys are of the type str and values are int s and then recover it . Something like this:
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What does if __name__ == “__main__”: do?
... file, it does two things:
it sets a few special variables like __name__, and then
it executes all of the code found in the file.
Let's see how this works and how it relates to your question about the __name__ checks we always see in Python scripts.
Code Sample
Let's use a slightly different cod...
Proper MIME type for OTF fonts
... @busticated, how'd you decide on this one? is it emerging as a standard? (works for me, and i wrote up a request on fontsquirrel to use it in their font-face generator... fontsquirrel.com/forum/discussion/361/mime-type-for-woff )
– ericsoco
Aug 25 '1...
What are the benefits of using C# vs F# or F# vs C#? [closed]
... than product shipment. I just got asked what's the difference between C# and F#, why did MS create F# and what scenarios would it be better than C#.
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Interface or an Abstract Class: which one to use?
Please explain when I should use a PHP interface and when I should use an abstract class ?
11 Answers
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Long-held, incorrect programming assumptions [closed]
I am doing some research into common errors and poor assumptions made by junior (and perhaps senior) software engineers.
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JPA EntityManager: Why use persist() over merge()?
EntityManager.merge() can insert new objects and update existing ones.
15 Answers
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