大约有 40,700 项符合查询结果（耗时：0.0518秒） [XML]
How to select only 1 row from oracle sql?
... to select only 1 row from table DUAL . For example, I want to execute this query:
13 Answers
...
Advantages of stateless programming?
...nal programming (specifically Haskell, but I've gone through tutorials on Lisp and Erlang as well). While I found the concepts very enlightening, I still don't see the practical side of the "no side effects" concept. What are the practical advantages of it? I'm trying to think in the functional min...
Version vs build in Xcode
...ntifier, version, build, devices, and deployment target. The version field is blank and the build field is 3.4.0 (which matches the version of the app from when I was still editing with Xcode 3).
...
how to create a Java Date object of midnight today and midnight tomorrow?
...So I need to compare against dates from today at 00:00am (midnight early this morning) to 12:00pm (midnight tonight).
19 An...
Append integer to beginning of list in Python [duplicate]
I have an integer and a list. I would like to make a new list of them beginning with the variable and ending with the list.
Writing a + list I get errors. The compiler handles a as integer, thus I cannot use append, or extend either.
How would you do this?
...
MySQL maximum memory usage
I would like to know how it is possible to set an upper limit on the amount of memory MySQL uses on a Linux server.
6 Answ...
Peak-finding algorithm for Python/SciPy
...
The function scipy.signal.find_peaks, as its name suggests, is useful for this. But it's important to understand well its parameters width, threshold, distance and above all prominence to get a good peak extraction.
According to my tests and the documentation, the concept of prominen...
Access-Control-Allow-Origin Multiple Origin Domains?
Is there a way to allow multiple cross-domains using the Access-Control-Allow-Origin header?
31 Answers
...
What's the best way to use R scripts on the command line (terminal)?
... simple plots from the command line. However, running R from bash scripts is not convenient at all. The ideal might be something like
...
Can I use Objective-C blocks as properties?
Is it possible to have blocks as properties using the standard property syntax?
8 Answers
...