大约有 8,600 项符合查询结果(耗时:0.0460秒) [XML]

https://stackoverflow.com/ques... 

Are there any disadvantages to always using nvarchar(MAX)?

...s with TEXT types, when they are distinct as it gets (completely different API to manipulate, different storage etc). It fails to mention the actual differences: no index, no online operations on MAX types – Remus Rusanu Aug 25 '11 at 15:53 ...
https://stackoverflow.com/ques... 

How to generate the JPA entity Metamodel?

...rit of type safety associated with the CriteriaQuery JPA 2.0 also has an API to support Metamodel representation of entities. ...
https://stackoverflow.com/ques... 

What does 'useLegacyV2RuntimeActivationPolicy' do in the .NET 4 config?

...ute basically lets you say, “I have some dependencies on the legacy shim APIs. Please make them work the way they used to with respect to the chosen runtime.” Why don’t we make this the default behavior? You might argue that this behavior is more compatible, and makes porting code from previo...
https://stackoverflow.com/ques... 

Difference between binary semaphore and mutex

...s! While both types of semaphores have a full/empty state and use the same API, their usage is very different. Mutual Exclusion Semaphores Mutual Exclusion semaphores are used to protect shared resources (data structure, file, etc..). A Mutex semaphore is "owned" by the task that takes it. If ...
https://stackoverflow.com/ques... 

How can I test a Windows DLL file to determine if it is 32 bit or 64 bit? [duplicate]

...es. Use ImageHelp to read the headers... You can also use the ImageHelp API to do this - load the DLL with LoadImage and you'll get a LOADED_IMAGE structure which will contain a pointer to an IMAGE_NT_HEADERS structure. Deallocate the LOADED_IMAGE with ImageUnload. ...or adapt this rough Perl sc...
https://stackoverflow.com/ques... 

How can I get the list of files in a directory using C or C++?

...the above man pages. For a windows based systems: You can use the Win32 API FindFirstFile / FindNextFile / FindClose functions. The following C++ example shows you a minimal use of FindFirstFile. #include <windows.h> #include <tchar.h> #include <stdio.h> void _tmain(int ar...
https://stackoverflow.com/ques... 

How to write a scalable Tcp/Ip based server

...ated for each asynchronous socket operation. Under the covers, the *Async API uses IO completion ports which is the fastest way of performing networking operations, see http://msdn.microsoft.com/en-us/magazine/cc302334.aspx And just to help you out, I am including the source code for a telnet serv...
https://stackoverflow.com/ques... 

Is gettimeofday() guaranteed to be of microsecond resolution?

I am porting a game, that was originally written for the Win32 API, to Linux (well, porting the OS X port of the Win32 port to Linux). ...
https://stackoverflow.com/ques... 

Difference between Inheritance and Composition

...can always be modified to use another data structure without violating the API. I highly recommend Josh Bloch's book Effective Java 2nd Edition Item 16: Favor composition over inheritance Item 17: Design and document for inheritance or else prohibit it Good object-oriented design is not about l...
https://stackoverflow.com/ques... 

What's the difference between Task.Start/Wait and Async/Await?

... I guess Eric assumes that you have a basic understanding of the Task api. I look at that code and say to myself "yup t.Wait is going to block on the main thread until the task is completed." – The Muffin Man Jan 5 '15 at 21:42 ...