大约有 7,549 项符合查询结果(耗时:0.0256秒) [XML]

https://stackoverflow.com/ques... 

How do I interpret precision and scale of a number in a database?

... like Microsoft Access, you must consider the percent as it's whole number form. In this case, 25.5% would require precision 4 and scale of 3 (not one) since we have to consider it as .255. I came across this problem early on and was stumped for a while wondering why scale 1 wasn't working. ...
https://stackoverflow.com/ques... 

Proper usage of Optional.ifPresent()

... @Marv I don't see any affirmation form OP that it's in the same class. But if you have such feelings, I agree that he have to use user.ifPresent(this::doSomethingWithUser);. I will add it to my answer. – Aleksandr Podkutin ...
https://stackoverflow.com/ques... 

What is the difference between Left, Right, Outer and Inner Joins?

... Table 1 and Table 2: - Left join merges both tables with all records form table 1, in other words, there might be non-populated fields from table 2 ID_ESTUDANTE NOME_ESTUDANTE LOCKER 1 Raony - 2 Diogo - ...
https://stackoverflow.com/ques... 

Populating spinner directly in the layout xml

...xchange.using('gps', function() { StackExchange.gps.track('embedded_signup_form.view', { location: 'question_page' }); }); $window.unbind('scroll', onScroll); } }; ...
https://stackoverflow.com/ques... 

CMake: Project structure with unit tests

...op-level CMakeLists.txt. This also means you have to use the more verbose form of add_test since your test exe isn't defined in the same CMakeLists.txt In your case, since you're running cmake in the root folder, your build tree and your source tree are one and the same. This is known as an in-so...
https://stackoverflow.com/ques... 

What's the optimum way of storing an NSDate in NSUserDefaults?

... be done with it. NSDate is one of the "main types" supported by the PLIST format (dates, numbers, strings, data, dictionaries, and arrays), so you can just store it directly. See the documentation for proof. Just store and retrieve the date directly and watch it Do The Right Thing (including time...
https://stackoverflow.com/ques... 

Determine if Android app is being used for the first time

...he beginning if it is the first start in a new version. You can use this information to display a "Whats new" dialog, for example. The following code should work from any android class that "is a context" (activities, services, ...). If you prefer to have it in a separate (POJO) class, you could co...
https://stackoverflow.com/ques... 

Sorting related items in a Django template

...for cleaner access from the application code, although there is a small performance penalty involved (< 30 ns on my laptop). This is of course a matter of style and highly subjective. – tawmas Jan 22 '14 at 23:57 ...
https://stackoverflow.com/ques... 

How can I get sin, cos, and tan to use degrees instead of radians?

...xchange.using('gps', function() { StackExchange.gps.track('embedded_signup_form.view', { location: 'question_page' }); }); $window.unbind('scroll', onScroll); } }; ...
https://stackoverflow.com/ques... 

How do I view events fired on an element in Chrome DevTools?

I have a customizable form element on a page from a library. I want to see what javascript events are fired when I interact with it because I am trying to find out which event handler to use. ...