大约有 18,500 项符合查询结果（耗时：0.0304秒） [XML]
What are the Ruby Gotchas a newbie should be warned about? [closed]
...s simple as I had expected. More precisely, the "rule of least-surprise" did not seem very respected to me (of course this is quite subjective). For example:
...
What's the difference between MyISAM and InnoDB? [duplicate]
... and MyISAM, the first step is in determining if you need the features provided by InnoDB. If not, then MyISAM is up for consideration.
A more detailed discussion of differences is rather impractical (in this forum) absent a more detailed discussion of the problem space... how the application will u...
Error inflating class fragment
...
As hdemirchian said, make sure to use:
import android.support.v4.app.Fragment;
And also make sure that the Activity that is using the fragment(s) extends FragmentActivity instead of the regular Activity,
import android.support.v4.app.Fra...
jquery disable form submit on enter
...
If keyCode is not caught, catch which:
$('#formid').on('keyup keypress', function(e) {
var keyCode = e.keyCode || e.which;
if (keyCode === 13) {
e.preventDefault();
return false;
}
});
EDIT: missed it, it's better to use keyup instead of keypress
EDIT 2:...
Is there a way to create your own html tag in HTML5?
...gs in browsers, although they won’t be HTML5 (see Are custom elements valid HTML5? and the HTML5 spec).
Let's assume you want to use a custom tag element called <stack>. Here's what you should do...
STEP 1
Normalize its attributes in your CSS Stylesheet (think css reset) -
Example:
sta...
What are the options for storing hierarchical data in a relational database? [closed]
... RBAR method known as a "Push Stack" to do the conversion and has been considered to be way to expensive to reach the Nirvana of the simplicity of maintenance by the Adjacency List and the awesome performance of Nested Sets. As a result, most people end up having to settle for one or the other espe...
Illegal mix of collations (utf8_unicode_ci,IMPLICIT) and (utf8_general_ci,IMPLICIT) for operation '=
..._unicode_ci; -- COLLATE added
CALL updateProductUsers(@rUsername, @rProductID, @rPerm);
Option 2: add COLLATE to the WHERE clause:
CREATE PROCEDURE updateProductUsers(
IN rUsername VARCHAR(24),
IN rProductID INT UNSIGNED,
IN rPerm VARCHAR(16))
BEGIN
UPDATE productUsers
INN...
How to do SQL Like % in Linq?
... why this wasn't working for a use case with letters, then realized my stupidity... don't forget .ToLower().Contains() etc if you want to ignore case. Whether you want this will of course depend on whether your trying to mimic LIKE from a DB with case insensitive collation or not.
...
Is there an “exists” function for jQuery?
...
@abhirathore2006 If you use an id selector and the element doesn't exist then length is 0 and doesn't throw exceptions.
– Robert
Jun 29 '17 at 20:35
...
How to Create Multiple Where Clause Query Using Laravel Eloquent?
...where clauses
$query=DB::table('users')
->whereRaw("users.id BETWEEN 1003 AND 1004")
->whereNotIn('users.id', [1005,1006,1007])
->whereIn('users.id', [1008,1009,1010]);
$query->where(function($query2) use ($value)
{
$query2->where('user_t...