大约有 47,000 项符合查询结果(耗时:0.0690秒) [XML]
INSERT IF NOT EXISTS ELSE UPDATE?
I've found a few "would be" solutions for the classic "How do I insert a new record or update one if it already exists" but I cannot get any of them to work in SQLite.
...
How to compile without warnings being treated as errors?
The problem is that the same code that compiles well on Windows, is unable to compile on Ubuntu. Every time I get this error:
...
What is the advantage of using forwarding references in range-based for loops?
const auto& would suffice if I want to perform read-only operations. However, I have bumped into
3 Answers
...
Difference between @Before, @BeforeClass, @BeforeEach and @BeforeAll
What is the main difference between
4 Answers
4
...
How to start nginx via different port(other than 80)
Hi I am a newbie on nginx, I tried to set it up on my server(running Ubuntu 4), which already has apache running.
5 Answer...
Access Asset Catalog programmatically
I know it's a new feature and this may not be possible, but I would love to be able to use an Asset Catalog to organize my assets, but I access all of my images programmatically. How would I access my images, now? Do I still access them by their file names like so:
...
Android: Generate random color on click?
I have an ImageView , in which I am programmaticly creating drawables and presenting them to the user. My goal is to click on said ImageView and change the drawable's color.
...
Java inner class and static nested class
What is the main difference between an inner class and a static nested class in Java? Does design / implementation play a role in choosing one of these?
...
How to properly add cross-site request forgery (CSRF) token using PHP
I am trying to add some security to the forms on my website. One of the forms uses AJAX and the other is a straightforward "contact us" form. I'm trying to add a CSRF token. The problem I'm having is that the token is only showing up in the HTML "value" some of the time. The rest of the time, the va...
Is a `=default` move constructor equivalent to a member-wise move constructor?
...
4 Answers
4
Active
...
