大约有 40,750 项符合查询结果（耗时：0.0346秒） [XML]
How to properly create composite primary keys - MYSQL
Here is a gross oversimplification of an intense setup I am working with. table_1 and table_2 both have auto-increment surrogate primary keys as the ID. info is a table that contains information about both table_1 and table_2 .
...
Isn't it silly that a tiny favicon requires yet another HTTP request? How can I put the favicon into
Everybody knows how to set up a favicon.ico link in HTML:
14 Answers
14
...
“date(): It is not safe to rely on the system's timezone settings…”
I got this error when I requested to update the PHP version from 5.2.17 to PHP 5.3.21 on the server.
24 Answers
...
Rails extending ActiveRecord::Base
I've done some reading about how to extend ActiveRecord:Base class so my models would have some special methods. What is the easy way to extend it (step by step tutorial)?
...
How to define two angular apps / modules in one page?
I'm trying to add two angular apps / modules to one page.
In the fiddles below you can see that always only the first module, referenced in the html code, will work correctly, whereas the second is not recognized by angular.
...
How do I resolve a HTTP 414 “Request URI too long” error?
I have developed a PHP web app. I am giving an option to the user to update multiple issues on one go. In doing so, sometimes the user is encountering this error. Is there any way to increase the lenght of URL in apache?
...
Java: Instanceof and Generics
Before I look 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.
...
What does the comma operator , do?
What does the , operator do in C?
8 Answers
8
...
Casting vs using the 'as' keyword in the CLR
When programming interfaces, I've found I'm doing a lot of casting or object type conversion.
18 Answers
...
How to tell PowerShell to wait for each command to end before starting the next?
I have a PowerShell 1.0 script to just open a bunch of applications. The first is a virtual machine and the others are development applications. I want the virtual machine to finish booting before the rest of the applications are opened.
...