大约有 47,000 项符合查询结果（耗时：0.0679秒） [XML]
Display open transactions in MySQL
...
How can I display these open transactions and commit or cancel them?
There is no open transaction, MySQL will rollback the transaction upon disconnect.
You cannot commit the transaction (IFAIK).
You display threads using
SHOW FULL PROCESSLIST
See: http:/...
Replace \n with actual new line in Sublime Text
...
Turn on Regex Search and Replace (icon most to the left in search and replace bar or shortcut Alt + R)
Find What: \\n
Replace with: \n
Cheers
share
|
...
Friend declaration in C++ - difference between public and private
... there's no difference - you just tell that class B is a friend of class A and now can access its private and protected members, that's all.
share
|
improve this answer
|
fol...
How can I avoid running ActiveRecord callbacks?
...
This solution is Rails 2 only.
I just investigated this and I think I have a solution. There are two ActiveRecord private methods that you can use:
update_without_callbacks
create_without_callbacks
You're going to have to use send to call these methods. examples:
p = Person.ne...
Unioning two tables with different number of columns
I have two tables (Table A and Table B).
5 Answers
5
...
When is it appropriate to use UDP instead of TCP? [closed]
Since TCP guarantees packet delivery and thus can be considered "reliable", whereas UDP doesn't guarantee anything and packets can be lost. What would be the advantage of transmitting data using UDP in an application rather than over a TCP stream? In what kind of situations would UDP be the better c...
Convert int to ASCII and back in Python
I'm working on making a URL shortener for my site, and my current plan (I'm open to suggestions) is to use a node ID to generate the shortened URL. So, in theory, node 26 might be short.com/z , node 1 might be short.com/a , node 52 might be short.com/Z , and node 104 might be short.com/ZZ . When...
Gradle, Android and the ANDROID_HOME SDK location
...
In
/my_current_project/
I've created a file called local.properties and put inside
sdk.dir=/my_current_path_to/sdk
In the console I need to do
set ANDROID_HOME=/my_current_path_to/sdk
Hope this helps.
shar...
Parsing command-line arguments in C?
... by word, or character by character in C. It has to be able to read in command line options -l -w -i or -- ...
12 Answers
...
Jinja2 template variable if None Object set a default value
...ld downvote this, since it's not a good answer to the original question... and yet at the same time, knowing about default is exactly what I needed for my particular case, so... simply not voting. (An edit to this answer might well earn it an upvote, except that I think it's likely hard to apply de...