大约有 18,341 项符合查询结果（耗时：0.0365秒） [XML]
Make a link in the Android browser start up my app?
...me. Something along the lines of:
<intent-filter>
<data android:scheme="anton" />
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.BROWSABLE" /&...
SQL to determine minimum sequential days of access?
...
The answer is obviously:
SELECT DISTINCT UserId
FROM UserHistory uh1
WHERE (
SELECT COUNT(*)
FROM UserHistory uh2
WHERE uh2.CreationDate
BETWEEN uh1.CreationDate AND DATEADD(d, @days, uh1.CreationDate)
) = @days OR UserId = 52551
E...
Proper use of 'yield return'
...ose keywords in C# that continues to mystify me, and I've never been confident that I'm using it correctly.
16 Answers
...
How to Define Callbacks in Android?
... a random example:
// The callback interface
interface MyCallback {
void callbackCall();
}
// The class that takes the callback
class Worker {
MyCallback callback;
void onEvent() {
callback.callbackCall();
}
}
// Option 1:
class Callback implements MyCallback {
void callba...
Escaping keyword-like column names in Postgres
...uble quotes to stop it being interpreted as a keyword:
INSERT INTO table (id, name, "year") VALUES ( ... );
From the documentation:
There is a second kind of identifier: the delimited identifier or
quoted identifier. It is formed by enclosing an arbitrary sequence of
characters in double-...
HTTP Basic Authentication credentials passed in URL and encryption
...uld like a more detailed answer, see answers.google.com/answers/threadview/id/758002.html
– rcourtna
Apr 29 '10 at 2:03
7
...
How to get client's IP address using JavaScript?
...d to somehow retrieve the client's IP address using JavaScript; no server side code, not even SSI.
50 Answers
...
How do I write LINQ's .Skip(1000).Take(100) in pure SQL?
.... eg.
USE AdventureWorks;
GO
WITH OrderedOrders AS
(
SELECT SalesOrderID, OrderDate,
ROW_NUMBER() OVER (ORDER BY OrderDate) AS 'RowNumber'
FROM Sales.SalesOrderHeader
)
SELECT *
FROM OrderedOrders
WHERE RowNumber BETWEEN 51 AND 60; --BETWEEN is inclusive
...
What is NSZombie?
...
It's a memory debugging aid. Specifically, when you set NSZombieEnabled then whenever an object reaches retain count 0, rather than being deallocated it morphs itself into an NSZombie instance. Whenever such a zombie receives a message, it logs a war...
How to detect page zoom level in all modern browsers?
...body,r = body.getBoundingClientRect(); return (r.left-r.right)/body.offsetWidth; (thanks to this example or this answer)
FF3.5 ONLY: screen.width / media query screen width (see below) (takes advantage of the fact that screen.width uses device pixels but MQ width uses CSS pixels--thanks to Quirksmod...