大约有 44,000 项符合查询结果(耗时:0.0271秒) [XML]
MySQL SELECT only not null values
...
GROUP_CONCAT(body) AS body
– Ravindra Singh
Sep 12 '19 at 12:11
add a comment
|
...
How much is too much with C++11 auto keyword?
...to spaces = space & space & space;
with
r_and_t<r_and_t<r_char_t<char>&, r_char_t<char>&>, r_char_t<char>&> spaces =
space & space & space;
On the other hand, when type is known and is simple, it's much better if it stated explicitly...
Iterate over a Javascript associative array in sorted order
...s(list)).map(function(i,e){return n+'='+list[n];}).get().join('&'); // concat for url querystring
– Elaine
Apr 22 '14 at 8:20
1
...
C++ Structure Initialization
...er. And dot notation is way safer if you happen to add the same type (like char*) as one of the other members above or below in the structure, because there's no risk of swapping them.
– Gui13
Nov 16 '16 at 9:21
...
Start a git commit message with a hashmark (#)
...
@CharlesBailey: I was expecting to get rid of the predefined text with git commit -t /dev/null but it is still showing that
– Alex
Oct 1 '12 at 12:59
...
AngularJS Folder Structure [closed]
...g
/bower_components
index.html
bower.json
And after grunt build (concat, uglify, rev, etc...):
/scripts
scripts.min.js (all JS concatenated, minified and grunt-rev)
vendor.min.js (all bower components concatenated, minified and grunt-rev)
/views
/styles
...
How to make my custom type to work with “range-based for loops”?
...ample of why this is useful is that your end iterator can read "check your char* to see if it points to '0'" when == with a char*. This allows a C++ range-for expression to generate optimal code when iterating over a null-terminated char* buffer.
struct null_sentinal_t {
template<class Rhs,
...
How to access the request body when POSTing using Node.js and Express?
...t; {
// on end of data, perform necessary action
body = Buffer.concat(body).toString();
response.write(request.body.user);
response.end();
});
});
share
|
improve this a...
MySQL: Order by field size/length
...ion gives the length of string in bytes. If you want to count (multi-byte) characters, use the CHAR_LENGTH function instead:
SELECT * FROM TEST ORDER BY CHAR_LENGTH(description) DESC;
share
|
impr...
MySQL - UPDATE query based on SELECT Query
...IN product_types USING(product_type_id)
JOIN web_products w
ON sku=CONCAT('L',SUBSTR(product_type_code,3), 'U',unit_index, 'A',activity_index)
I found that that was too complex to incorporate into a SELECT within mysql, so I created a temporary table, and joined that with the update statem...