大约有 44,000 项符合查询结果(耗时:0.0539秒) [XML]
How to design a product table for many kinds of product where each product has many parameters
...
You have at least these five options for modeling the type hierarchy you describe:
Single Table Inheritance: one table for all Product types, with enough columns to store all attributes of all types. This means a lot of columns, most of which are NULL on any ...
How can I return pivot table output in MySQL?
...ently not available any longer I feel obliged to provide some additional information for all of you searching for mysql pivot answers in here. It really had a vast amount of information, and I won't put everything from there in here (even more since I just don't want to copy their vast knowledge), b...
Difference between jQTouch and jQuery mobile
...
jQtouch is optimized for WebKit, jQuery Mobile is looking to support all mobile devices; that is my understanding
some good info here
http://jquerymobile.com/strategy/
and here
http://news.ycombinator.com/item?id=1602169
...
moveCamera with CameraUpdateFactory.newLatLngBounds crashes
...
Those answers are just fine, but I would go for a different approach, a simpler one.
If the method only works after the map is layed out, just wait for it:
map.setOnMapLoadedCallback(new GoogleMap.OnMapLoadedCallback() {
@Override
public void onMapLoaded() {
...
How do I enable MSDTC on SQL Server?
...
Use this for windows Server 2008 r2 and Windows Server 2012 R2
Click Start, click Run, type dcomcnfg and then click OK to open Component Services.
In the console tree, click to expand Component Services, click to expand Computers, c...
NSDictionary - Need to check whether dictionary contains key-value pair or not
...
Just ask it for the objectForKey:@"b". If it returns nil, no object is set at that key.
if ([xyz objectForKey:@"b"]) {
NSLog(@"There's an object set for key @\"b\"!");
} else {
NSLog(@"No object set for key @\"b\"");
}
Edit: ...
How to make a node.js application run permanently?
...u close putty you inadvertently kill your server because you ran it in the foreground. To avoid this behavior run the server in the background by appending & to your command:
node /srv/www/MyUserAccount/server/server.js &
The problem here is a lack of linux knowledge and not a question ...
How to get a user's client IP address in ASP.NET?
...the user's ISP's IP address, not exactly the user's machine IP address who for example clicked a link. How can I get the real IP Address?
...
Undo a Git commit after push using reverse patch?
...
simply use
for committed file:
git revert <SHA1 ID>
for non-committed file:
git reset --hard HEAD
share
|
improve this answ...
WebApi's {“message”:“an error has occurred”} on IIS7, not in IIS Express
...as a Devart.Data.Linq dll.
To get to that answer, I turned on IIS tracing for 500 errors. That gave a little bit of information, but the really helpful thing was in the web.config setting the <system.web><customErrors mode="Off"/></system.web> This pointed to a missing dynamicall...
