大约有 45,000 项符合查询结果（耗时：0.0811秒） [XML]
Java: Instanceof and Generics
... through my generic data structure for a value's index, I'd like to see if it is even an instance of the type this has been parametrized to.
...
SQL: How to properly check if a record exists
...
It's better to use either of the following:
-- Method 1.
SELECT 1
FROM table_name
WHERE unique_key = value;
-- Method 2.
SELECT COUNT(1)
FROM table_name
WHERE unique_key = value;
The first alternative should give you no r...
How should I store GUID in MySQL tables?
Do I use varchar(36) or are there any better ways to do it?
10 Answers
10
...
Why should I use Google's CDN for jQuery?
...wondering: why should I depend on Google's server to host jQuery for my site?
7 Answers
...
the item you requested is not available for purchase
...per console.
Setup you testing account
Make sure to sign in your device with your test account.
In a case of closed alpha/beta testing, make sure you have added your test account to selected testers group, you can do this on the page of management your alpha/beta version.
In a case of closed alpha...
this.setState isn't merging states as I would expect
...n to the existing selected part of the state by creating a shallow copy of it.
Another solution would be to write setStateRecursively() which does recursive merge on a new state and then calls replaceState() with it:
setStateRecursively: function(stateUpdate, callback) {
var newState = mergeStat...
Finding the max/min value in an array of primitives using Java
It's trivial to write a function to determine the min/max value in an array, such as:
15 Answers
...
How to automatically crop and center an image
Given any arbitrary image, I want to crop a square from the center of the image and display it within a given square.
7 Ans...
“No backupset selected to be restored” SQL Server 2012
I have a SQL Server 2012 database with filestream enabled. However, when I backup it and try to restore it on another SQL Server 2012 instance (on another machine), I simply get this message that:
...
How can I declare and define multiple variables in one line using C++?
...follow
|
edited Jul 27 '11 at 1:14
Chris Eberle
43.7k1111 gold badges7474 silver badges110110 bronze badges
...