大约有 16,000 项符合查询结果（耗时：0.0220秒） [XML]
How to get a date in YYYY-MM-DD format from a TSQL datetime field?
... there a simple way to perform this in SQL Server or would it be easier to convert it programmatically after I retrieve the result set?
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What do we mean by Byte array? [closed]
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@JeffOrris not sure what you mean by "converting to a byte array". That's not something you would typically do. Also, "less vulnerable" to what?
– Phil
Jun 2 '17 at 0:42
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How do I kill background processes / jobs when my shell script exits?
...tus and a cleanup function.
trap "exit" INT TERM
trap "kill 0" EXIT
Why convert INT and TERM to exit? Because both should trigger the kill 0 without entering an infinite loop.
Why trigger kill 0 on EXIT? Because normal script exits should trigger kill 0, too.
Why kill 0? Because nested subshe...
Entity Framework: There is already an open DataReader associated with this Command
...y loading (IQueriable).
foreach (var user in _dbContext.Users)
{
}
Converting the IQueriable collection into other enumerable collection will solve this problem.
example
_dbContext.Users.ToList()
Note: .ToList() creates a new set every-time and it can cause the performance issue if you a...
startsWith() and endsWith() functions in PHP
...f strpos() may cause unexpected results: "If needle is not a string, it is converted to an integer and applied as the ordinal value of a character."
– quietmint
Dec 3 '12 at 3:47
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Dynamic instantiation from string name of a class in dynamically imported module?
...ght but I have done the following to get the os.path.join method: getattr(sys.modules["os.path"], "join")
– Javier Novoa C.
Jul 1 '15 at 17:55
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Find element's index in pandas Series
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Converting to an Index, you can use get_loc
In [1]: myseries = pd.Series([1,4,0,7,5], index=[0,1,2,3,4])
In [3]: Index(myseries).get_loc(7)
Out[3]: 3
In [4]: Index(myseries).get_loc(10)
KeyError: 10
Duplicate handling
I...
Is there a way to make R beep/play a sound at the end of a script?
...r know when something is finished. Is there a way to invoke a beep (like a system beep) or get R to play a sound or notify growl via some code at the end of my script?
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How to read a file line-by-line into a list?
...list takes up about 13.22% more space than a tuple. Results come from from sys import getsizeof as g; i = [None] * 1000; round((g(list(i)) / g(tuple(i)) - 1) * 100, 2). Creating a tuple takes about 4.17% more time than creating a list (with a 0.16% standard deviation). Results come from running from...
Why use 'virtual' for class properties in Entity Framework model definitions?
...ch. These are called getters and setters and at compilation time, they are converted into methods.
//Internally the code looks more like this:
public ICollection<RSVP> get_RSVPs()
{
return _RSVPs;
}
public void set_RSVPs(RSVP value)
{
_RSVPs = value;
}
private RSVP _RSVPs;
That's...