大约有 46,000 项符合查询结果（耗时：0.0735秒） [XML]
Template function inside template class
... void MyClass<T>::foo() { U a; a.invoke(); } and it works
– Michael
Dec 27 '11 at 1:39
...
Determining if a number is either a multiple of ten or within a particular set of ranges
...m - 1) / 10) % 2 == 1 && num <= 100)
But that's rather dense, and you might be better off just listing the options explicitly.
Now that you've given a better idea of what you are doing, I'd write the second one as:
int getRow(int num) {
return (num - 1) / 10;
}
if (ge...
Difference between as.POSIXct/as.POSIXlt and strptime for converting character vectors to POSIXct/PO
...character vectors to datetime classes. I often see 2 methods, the strptime and the as.POSIXct/as.POSIXlt methods. I looked at the 2 functions but am unclear what the difference is.
...
Should I Dispose() DataSet and DataTable?
DataSet and DataTable both implement IDisposable, so, by conventional best practices, I should call their Dispose() methods.
...
What does addChildViewController actually do?
I'm just dipping my feet for the first time into iOS development, and one of the first things I've had to do is implement a custom container view controller - lets call it SideBarViewController - that swaps out which of several possible child view controllers it shows, almost exactly like a stan...
How to say “should_receive” more times in RSpec
...swer below
for 2 times:
Project.should_receive(:find).twice.with(@project).and_return(@project)
for exactly n times:
Project.should_receive(:find).exactly(n).times.with(@project).and_return(@project)
for at least n times:
Project.should_receive(:msg).at_least(n).times.with(@project).and_return(@pr...
SQL SELECT speed int vs varchar
I'm in the process of creating a table and it made me wonder.
9 Answers
9
...
How can I query a value in SQL Server XML column
...ly good question. It means that you pick the first role value from the XML and that means that this will only work for finding Alpha in your sample xml. It will not find the row if you search for Beta.
– Mikael Eriksson
Apr 27 '12 at 5:37
...
How can a LEFT OUTER JOIN return more records than exist in the left table?
...ave a very basic LEFT OUTER JOIN to return all results from the left table and some additional information from a much bigger table. The left table contains 4935 records yet when I LEFT OUTER JOIN it to an additional table the record count is significantly larger.
...
Can an AJAX response set a cookie?
...f the user agent supports HTTP State Management it should persist, discard and send cookies (as received in the Set-Cookie response header, and sent in the Cookie header) as applicable. -- from w3.org/TR/XMLHttpRequest
– smwikipedia
Jan 6 '16 at 13:48
...