大约有 32,000 项符合查询结果（耗时：0.0645秒） [XML]
Using varchar(MAX) vs TEXT on SQL Server
...Full Text Index.
LIKE is simpler to implement and is often suitable for small amounts of data, but it has extremely poor performance with large data due to its inability to use an index.
share
|
im...
When should the volatile keyword be used in C#?
...ors and making
them synchronize main memory with their caches".
Actually, that last bit is a lie. The true semantics of volatile reads
and writes are considerably more complex than I've outlined here; in
fact they do not actually guarantee that every processor stops what it
is doing and...
When vectors are allocated, do they use memory on the heap or the stack?
Are all of the following statements true?
5 Answers
5
...
ASP.Net MVC Html.HiddenFor with wrong value
...
I really appreciated Simon Ince's blog post about this. The conclusion I take from it is to ensure your workflow is correct. So if you have accepted a valid view model and done something with it then redirect to a confirmation ac...
Is the order of iterating through std::map known (and guaranteed by the standard)?
...
Yes, that's guaranteed. Moreover, *begin() gives you the smallest and *rbegin() the largest element, as determined by the comparison operator, and two key values a and b for which the expression !compare(a,b) && !compare(b,a) is true are considered equal. The default comparis...
Working with select using AngularJS's ng-options
...of the array item the option tag relates to. This is because AngularJS actually allows you to select entire objects with select controls, and not just primitive types. For example:
app.controller('MainCtrl', function($scope) {
$scope.items = [
{ id: 1, name: 'foo' },
{ id: 2, name: 'ba...
How to get error message when ifstream open fails
...
Every system call that fails update the errno value.
Thus, you can have more information about what happens when a ifstream open fails by using something like :
cerr << "Error: " << strerror(errno);
However, since every s...
Differences between numpy.random and random.random in Python
...of much higher quality than is available from random.random alone. You usually don't need this, though.
– SingleNegationElimination
Aug 11 '11 at 18:36
...
In C++, what is a “namespace alias”?
... is to mark one or both of the question/answer as "community wiki". Personally I'd go with question as you and answer as community. If the question has merrit then you'll get ROI.
– Richard Corden
Jul 31 '09 at 9:35
...
How to implement if-else statement in XSLT?
...
Could you please correct the statement below, we all know that if(case > x ) without following {} will only execute 1 following line, i have seen this on many beginners that they write exactly what you have posted here, probably many of them copied 1:1
...