大约有 14,100 项符合查询结果（耗时：0.0271秒） [XML]
ORDER BY the IN value list
...o it quite easily with (introduced in PostgreSQL 8.2) VALUES (), ().
Syntax will be like this:
select c.*
from comments c
join (
values
(1,1),
(3,2),
(2,3),
(4,4)
) as x (id, ordering) on c.id = x.id
order by x.ordering
...
Use ASP.NET MVC validation with jquery ajax?
...:
@Html.LabelFor(Model => Model.EditPostViewModel.Title, true)
@Html.TextBoxFor(Model => Model.EditPostViewModel.Title,
new { @class = "tb1", @Style = "width:400px;" })
@Html.ValidationMessageFor(Model => Model.EditPostViewModel.Title)
NOTE: These need to...
A monad is just a monoid in the category of endofunctors, what's the problem?
...ane in Categories for the Working Mathematician, one of the foundational texts of Category Theory. Here it is in context, which is probably the best place to learn exactly what it means.
But, I'll take a stab. The original sentence is this:
All told, a monad in X is just a monoid in the category of...
What is (functional) reactive programming?
...n terms as Thomas K does in another answer (graphs, nodes, edges, firing, execution, etc).
There are many possible implementation styles, but no implementation says what FRP is.
I do resonate with Laurence G's simple description that FRP is about "datatypes that represent a value 'over time' ".
Con...
What is a Y-combinator? [closed]
...
If you're ready for a long read, Mike Vanier has a great explanation. Long story short, it allows you to implement recursion in a language that doesn't necessarily support it natively.
share
|
...
How to strip all non-alphabetic characters from string in SQL Server?
...eepValues as varchar(50)
Set @KeepValues = '%[^a-z]%'
While PatIndex(@KeepValues, @Temp) > 0
Set @Temp = Stuff(@Temp, PatIndex(@KeepValues, @Temp), 1, '')
Return @Temp
End
Call it like this:
Select dbo.RemoveNonAlphaCharacters('abc1234def5678ghi90jkl')
Once you understan...
Scala type programming resources
...digms in type-level programming: "object-oriented" and "functional". Most examples linked to from here follow the object-oriented paradigm.
A good, fairly simple example of type-level programming in the object-oriented paradigm can be found in apocalisp's implementation of the lambda calculus, repl...
sort object properties and JSON.stringify
... {
var flatObject = flattenObject(ob[i]);
for (var x in flatObject) {
if (!flatObject.hasOwnProperty(x)) continue;
toReturn[i + '.' + x] = flatObject[x];
}
} else {
toReturn[i] = ob[i];
}
}
retur...
How to make my custom type to work with “range-based for loops”?
...ion of this defect report.
The way to make a for(:) loop work on your type X is now one of two ways:
Create member X::begin() and X::end() that return something that acts like an iterator
Create a free function begin(X&) and end(X&) that return something that acts like an iterator, in the ...
What's the syntax for mod in java
As an example in pseudocode:
17 Answers
17
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