大约有 40,000 项符合查询结果（耗时：0.0792秒） [XML]
MySQL - Get row number on select
...
Take a look at this.
Change your query to:
SET @rank=0;
SELECT @rank:=@rank+1 AS rank, itemID, COUNT(*) as ordercount
FROM orders
GROUP BY itemID
ORDER BY ordercount DESC;
SELECT @rank;
The last select is your count.
...
Is there a function to deselect all text using JavaScript?
... |
edited Feb 23 '18 at 0:10
John
8,88188 gold badges7575 silver badges131131 bronze badges
answered J...
Is == in PHP a case-sensitive string comparison?
...
101
Yes, == is case sensitive.
You can use strcasecmp for case insensitive comparison
...
Does const mean thread-safe in C++11?
...ue...
This is what the Standard Language has to say on thread-safety:
[1.10/4]
Two expression evaluations conflict if one of them modifies a memory location (1.7) and the other one accesses or modifies the same memory location.
[1.10/21]
The execution of a program contains a data race if it contain...
Enumerable.Empty() equivalent for IQueryable
...
206
Maybe:
Enumerable.Empty<T>().AsQueryable();
...
bower automatically update bower.json
I run the following commands using bower 1.0.0:
1 Answer
1
...
How do I get cURL to not show the progress bar?
...p://google.com > temp.html
works for curl version 7.19.5 on Ubuntu 9.10 (no progress bar). But if for some reason that does not work on your platform, you could always redirect stderr to /dev/null:
curl http://google.com 2>/dev/null > temp.html
...
Insert new item in array on any position in PHP
...// not necessarily an array, see manual quote
array_splice( $original, 3, 0, $inserted ); // splice in at position 3
// $original is now a b c x d e
If replacement is just one element it is not necessary to put array() around it, unless the element is an array itself, an object or NULL.
...
open-ended function arguments with TypeScript
...ritten as,
function sum(...numbers: number[]) {
var aggregateNumber = 0;
for (var i = 0; i < numbers.length; i++)
aggregateNumber += numbers[i];
return aggregateNumber;
}
This will then type check correctly with
console.log(sum(1, 5, 10, 15, 20));
...
Chrome: timeouts/interval suspended in background tabs?
... |
edited Apr 4 '18 at 20:59
GG.
16.5k99 gold badges6666 silver badges113113 bronze badges
answered Ma...