大约有 45,000 项符合查询结果（耗时：0.1418秒） [XML]
sql ORDER BY multiple values in specific order?
...a') ...
ORDER BY
CASE x_field
WHEN 'f' THEN 1
WHEN 'p' THEN 2
WHEN 'i' THEN 3
WHEN 'a' THEN 4
ELSE 5 --needed only is no IN clause above. eg when = 'b'
END, id
share
|
...
PostgreSQL error 'Could not connect to server: No such file or directory'
...ate in my project or even try most database tasks for my Ruby on Rails 3.2 applications.
22 Answers
...
Difference between numeric, float and decimal in SQL Server
... Data Type)
will map to Single in .NET
The ISO synonym for real is float(24)
float and real (Transact-SQL) - MSDN
float (8 byte) (Approximate Numeric Data Type)
will map to Double in .NET
All exact numeric types always produce the same result, regardless of which kind
of processor architectur...
How do I use VaryByParam with multiple parameters?
In ASP.NET MVC2 I use OutputCache and the VaryByParam attribute. I got it working fine with a single parameter, but what is the correct syntax when I have several parameters on the method?
...
Can a dictionary be passed to django models on create?
...
2 Answers
2
Active
...
Why do people put code like “throw 1; ” and “for(;;);” in front of json responses? [du
...ructor functions:
Array= function() {
alert('I steal '+this);
};
[1, 2, 3]
And for now, IE8's implementation of properties (based on the ECMAScript Fifth Edition standard and Object.defineProperty) currently does not work on Object.prototype or Array.prototype.
But as well as protecting pas...
How can I deploy an iPhone application from Xcode to a real iPhone device?
...
12 Answers
12
Active
...
Use numpy array in shared memory for multiprocessing
...any processes access different slices of the same array
assert M % 2 # odd
step = N // 10
p.map_async(g, [slice(i, i + step) for i in range(stop_f, N, step)])
p.join()
assert np.allclose(((-1)**M)*tonumpyarray(shared_arr), arr_orig)
def init(shared_arr_):
global ...
How to get the parents of a merge commit in git?
...
2 Answers
2
Active
...