大约有 30,000 项符合查询结果（耗时：0.0446秒） [XML]
ERROR: Error 1005: Can't create table (errno: 121)
...how, cause I am not familair with it, but it would seem logical if you can call up the constraints, you can delete them too, or alter them.
– Dorvalla
Oct 2 '12 at 7:29
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Change Active Menu Item on Page Scroll?
...ll position
var fromTop = $(this).scrollTop()+topMenuHeight;
// Get id of current scroll item
var cur = scrollItems.map(function(){
if ($(this).offset().top < fromTop)
return this;
});
// Get the id of the current element
cur = cur[cur.length-1];
var id = cur &am...
Difference between await and ContinueWith
...tinuation to complete. In the first version, the method will return to the caller as soon as it hits the first await expression which isn't already completed.
They're very similar in that they both schedule a continuation, but as soon as the control flow gets even slightly complex, await leads to m...
Shuffle two list at once with same order
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@ᔕᖺᘎᕊ, It means unpack the values of c so it is called as zip(1,2,3) instead of zip([1,2,3])
– sshashank124
Apr 3 '15 at 1:21
2
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Why main does not return 0 here?
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@cnicutar: Functions don’t typically return small values on the stack—because it would involve a pop, a push, and a jump rather than just a move and a return—so it’s almost certainly a register, eax specifically on x86.
– Jon Pu...
git cherry-pick says “…38c74d is a merge but no -m option was given”
...ommit. You lose all their history, and glom together all their diffs. Your call.
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?: operator (the 'Elvis operator') in PHP
...// true
var_dump('rock' ?: 'roll'); // 'rock'
?>
By the way, it's called the Elvis operator.
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Does a finally block run even if you throw a new Exception?
... JLS. The wording of the JLS is sometimes a bit strange, but you will typically find that the meaning of the strange terminology is defined clearly elsewhere in the document. The JLS is a specification and has precision (rather than readability) as its primary goal.
– Stephen...
How do I create a foreign key in SQL Server?
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create table question_bank
(
question_id uniqueidentifier primary key,
question_exam_id uniqueidentifier not null,
question_text varchar(1024) not null,
question_point_value decimal,
constraint fk_questionbank_exams foreign key (question_exam_id) ...
Differences between Agda and Idris
...ample is associativity of vector concatenation. Given length-indexed lists called vectors defined thusly:
data Vect : Nat -> Type -> Type where
Nil : Vect 0 a
(::) : a -> Vect n a -> Vect (S n) a
and concatenation with the following type:
(++) : Vect n a -> Vect m a -> Vec...