大约有 30,000 项符合查询结果（耗时：0.0473秒） [XML]
ALTER TABLE, set null in not null column, PostgreSQL 9.1
I have a table with not null column, How to set a null value in this column as default?
4 Answers
...
What is Pseudo TTY-Allocation? (SSH and Github)
I was trying to setup an SSH connection with Github following this tutorial: https://help.github.com/articles/testing-your-ssh-connection/
...
Cosmic Rays: what is the probability they will affect a program?
...s suggest that computers typically experience about one cosmic-ray-induced error per 256 megabytes of RAM per month.[15]
This means a probability of 3.7 × 10-9 per byte per month, or 1.4 × 10-15 per byte per second. If your program runs for 1 minute and occupies 20 MB of RAM, then the failure pr...
Where to define custom error types in Ruby and/or Rails?
Is there a best practice for defining custom error types in a Ruby library (gem) or Ruby on Rails application? Specifically:
...
How can I link to a specific glibc version?
...|
edited Sep 30 '18 at 17:05
answered Sep 28 '18 at 7:08
Ci...
Is there a way to give a specific file name when saving a file via cURL?
I am pulling files using curl in the mac OS X terminal and want to give them different names. Is there a way to specify a name, such as a "save as" function when using curl?
...
How can I check if a value is a json object?
... Prior to jQuery 1.9, $.parseJSON returned null instead of throwing an error if it was passed an empty string, null, or undefined, even though those are not valid JSON. jquery site link
– gloomy.penguin
Mar 27 '13 at 20:44
...
ng-app vs. data-ng-app, what is the difference?
...ference between the two except that certain HTML5 validators will throw an error on a property like ng-app, but they don't throw an error for anything prefixed with data-, like data-ng-app.
So to answer your question, use data-ng-app if you would like validating your HTML to be a bit easier.
Fun f...
Swift - class method which must be overridden by subclass
...erridden by every subclass, and which, if it is not, causes a compile time error?
6 Answers
...
What is the best collation to use for MySQL with PHP? [closed]
...d to achieve. Your description is correct, but only in as much as it is an error on the part of the DBA to select an inappropriate collation.
– Hammerite
Aug 11 '11 at 15:42
32
...