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How to select unique records by SQL
...umns (at least on a DB2), which still will return duplicate values in individual columns.
– Konstantin
Jan 4 '18 at 10:46
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Web API 最佳入门指南 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...e of clients, including browsers and mobile devices. ASP.NET Web API is an ideal platform for building RESTful applications on the .NET Framework.
Web API在ASP.NET完整框架中地位如下图，与SignalR一起同为构建Service而服务的框架。Web API负责构建http常规服务，而Sin...
Checking if an instance's class implements an interface?
... an interface. You don't know if the object is a class that happens to be called IInterface.
You can also use the reflection API in PHP to test this more specifically:
$class = new ReflectionClass('TheClass');
if ($class->implementsInterface('IInterface'))
{
print "Yep!\n";
}
See http://ph...
How to do an update + join in PostgreSQL?
... price = s.price_per_vehicle
FROM shipments_shipment AS s
WHERE v.shipment_id = s.id
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Changing an element's ID with jQuery
I need to change an element's ID using jQuery.
8 Answers
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jquery change class name
I want to change the class of a td tag given the td tag's id:
12 Answers
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python pandas dataframe to dictionary
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See the docs for to_dict. You can use it like this:
df.set_index('id').to_dict()
And if you have only one column, to avoid the column name is also a level in the dict (actually, in this case you use the Series.to_dict()):
df.set_index('id')['value'].to_dict()
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angular js unknown provider
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Your code looks good, in fact it works (apart from the calls themselves) when copied & pasted into a sample jsFiddle: http://jsfiddle.net/VGaWD/
Hard to say what is going on without seeing a more complete example but I hope that the above jsFiddle will be helpful. What I'm s...
JavaScript plus sign in front of function expression
...arentheses (this is more common, but neither more nor less correct syntactically):
(function() { console.log("Foo!"); })();
// or
(function() { console.log("Foo!"); }());
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How to sum array of numbers in Ruby?
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Ken Iverson introduced the operator / called "reduction operator" in the programming language APL. Source: Iverson, Kenneth. 1962. A Programming Language. Wiley. Another source: "Notation as a Tool of Thought", 1979 ACM Turing Award Lecture, Kenneth E. Iverson,...