大约有 48,000 项符合查询结果(耗时:0.0605秒) [XML]
SQL/mysql - Select distinct/UNIQUE but return all columns?
...y applicable to numeric values, but also compare the alphabetical order of string values.
SELECT country, MAX(city) FROM locations
GROUP BY country
will result in:
--country-- --city--
France Paris
Poland Krakow
Italy Milano
or:
SELECT country, MIN(city) FROM locations
GROU...
select count(*) from table of mysql in php
I am able to get both the value and row of the mysql query result.
18 Answers
18
...
Make Adobe fonts work with CSS3 @font-face in IE9
...w, right? It's only one file. :-) For VS2010 you need to add: #include <string.h>
– Jonathan DeMarks
Mar 25 '13 at 12:24
...
How to wait for 2 seconds?
...
The documentation for WAITFOR() doesn't explicitly lay out the required string format.
This will wait for 2 seconds:
WAITFOR DELAY '00:00:02';
The format is hh:mi:ss.mmm.
share
|
improve th...
Can regular expressions be used to match nested patterns? [duplicate]
...
For string '(a (b c)) (d e)', using simple expression '/\([^()]*\)/' gives me the same result. Are there benefits to your long expression?
– Cœur
Oct 13 '15 at 7:38
...
Linq: GroupBy, Sum and Count
... ProductName = cl.First().Name,
Quantity = cl.Count().ToString(),
Price = cl.Sum(c => c.Price).ToString(),
}).ToList();
The use of First() here to get the product name assumes that every product with the same product code has the same product name....
How to change the href for a hyperlink using jQuery
.../www.live.com/')
This will find links where the href exactly matches the string http://www.google.com/. A more involved task might be matching, then updating only part of the href:
$("a[href^='http://stackoverflow.com']")
.each(function()
{
this.href = this.href.replace(/^http:\/\/be...
Shrink a YouTube video to responsive width
..." height="9")
Waits until document is ready before resizing
Uses jQuery substring *= selector instead of start of string ^=
Gets reference width from video iframe parent instead of predefined element
Javascript solution
No CSS
No wrapper needed
Thanks to @Dampas for starting point.
https://stackov...
Conversion from Long to Double in Java
...
Don't need any string parsing there: Long.valueOf(15552451L).doubleValue() if you want to go via Long. Note this is the same, internally, as the cast from a double, except that you're doing some auto/unboxing.
– Joe Ke...
Javascript communication between browser tabs/windows [duplicate]
...h; i++) {
var c = ca[i];
while (c.charAt(0)==' ') c = c.substring(1,c.length);
if (c.indexOf(cname) == 0) {
return c.substring(cname.length, c.length);
}
}
return null;
}
function updateMessage() {
var text = getCookie();
document.forms['re...
