大约有 49,000 项符合查询结果（耗时：0.0891秒） [XML]
What is the ideal data type to use when storing latitude / longitude in a MySQL database?
...
MYSQL Spatial is a good option, but still has significant limits and caveats (as of 6). Please see my answer below...
– James Schek
Oct 2 '08 at 15:43
1
...
Git: Find the most recent common ancestor of two branches
...
@ThorbjørnRavnAndersen, yes, I suppose that's so... The difficulty in description comes with the fact that git uses a Directed Acyclic Graph, and yet it's often thought of as a tree, which it technically is not. To be more careful in my wording, I was talking about the case where ...
SQL: IF clause within WHERE clause
Is it possible to use an IF clause within a WHERE clause in MS SQL?
14 Answers
14
...
Multiple dex files define Landroid/support/v4/accessibilityservice/AccessibilityServiceInfoCompat
If I run gradle assembleDebug from the command line, I am suddenly getting this error:
26 Answers
...
Google Map API v3 — set bounds and center
...Id)
{
//incoming: bounds - bounds object/array; mapid - map id if it was initialized in global variable before "var maps = [];"
if (bounds==null) return false;
maps[mapId].fitBounds(bounds);
}
}
In the result u will fit all points in bounds in your map window.
Exam...
What is Prism for WPF?
...inly) a booklet, as given on the MSDN site? Does it include any libraries, if so for what exactly?
It is a book, but also includes the libraries for support (on the GitHub site).
Is Prism an MVVM framework? Should I be using it as the "official Microsoft MVVM framework" over others out there o...
What does “Mass Assignment” mean in Laravel?
...bviously, you don't want users to be able to update this value. In theory, if you used the above code, someone could inject into a form a new field for user_type and send 'admin' along with the other form data, and easily switch their account to an admin account... bad news.
By adding:
$fillable =...
How to query MongoDB with “like”?
...
Actually, it depends. If the query doesn't use an index, and must do a table scan, then it can certainly be expensive. If you're doing a 'starts with' regex query, then that can use an index. Best to run an explain() to see what's happening.
...
How to clear a notification in Android
Is it possible to clear a notification programatically?
14 Answers
14
...
MySQL/SQL: Group by date only on a Datetime column
...nly FROM a_table GROUP BY DateOnly;
Though I don't think it'll make any difference to performance, it is a little clearer.
share
|
improve this answer
|
follow
...