大约有 44,000 项符合查询结果(耗时:0.0770秒) [XML]
FIND_IN_SET() vs IN()
I have 2 tables in my database. One is for orders, and one is for companies.
6 Answers
...
What's the absurd function in Data.Void useful for?
...pe is involved in the return type of a function.
absurd arises when we're converting between these two representations.
For example, callcc :: ((a -> m b) -> m a) -> m a uses (implicit) forall b. It could be as well of type ((a -> m Void) -> m a) -> m a, because a call to the c...
Stateless vs Stateful - I could use some concrete information
...nterested in articles which have some concrete information about stateless and stateful design in programming. I'm interested because I want to learn more about it, but I really can't find any good articles about it. I've read dozens of articles on the web which vaguely discuss the subject, or they'...
Why do we need break after case statements?
...t an example.
In my experience, usually it is bad style to "fall through" and have multiple blocks of code execute for one case, but there may be uses for it in some situations.
share
|
improve thi...
Why do I get “unresolved external symbol” errors when using templates? [duplicate]
When I write C++ code for a class using templates and split the code between a source (CPP) file and a header (H) file, I get a whole lot of "unresolved external symbol" errors when it comes to linking the final executible, despite the object file being correctly built and included in the linking. ...
Send data from activity to fragment in Android
...here I have some EditText . In activity I have a subclass with async-task and in method doInBackground I get some result, which I save to variable. How can I send this variable from subclass "my activity" to this fragment?
...
How can I use Async with ForEach?
... case, I recommend projecting each element into an asynchronous operation, and you can then (asynchronously) wait for them all to complete.
using (DataContext db = new DataLayer.DataContext())
{
var tasks = db.Groups.ToList().Select(i => GetAdminsFromGroupAsync(i.Gid));
var results = awa...
How to make a countdown timer in Android?
...wo EditTexts in XML. In one EditText, the user can put a number as minutes and in another EditText, a number as seconds. After clicking the finish button, the seconds EditText should start to countdown and update its text every second.
...
Samples of Scala and Java code where Scala code looks simpler/has fewer lines?
I need some code samples (and I also really curious about them) of Scala and Java code which show that Scala code is more simple and concise then code written in Java (of course both samples should solve the same problem).
...
Powershell v3 Invoke-WebRequest HTTPS error
Using Powershell v3's Invoke-WebRequest and Invoke-RestMethod I have succesfully used the POST method to post a json file to a https website.
...
