大约有 43,000 项符合查询结果（耗时：0.0450秒） [XML]
ActiveRecord.find(array_of_ids), preserving order
...
The answer is for mysql only
There is a function in mysql called FIELD()
Here is how you could use it in .find():
>> ids = [100, 1, 6]
=> [100, 1, 6]
>> WordDocument.find(ids).collect(&:id)
=> [1, 6, 100]
>> WordD...
How to use index in select statement?
...swer your specific question you have to specify the DB you are using.
For MySQL, you want to read the Index Hint Syntax documentation on how to do this
share
|
improve this answer
|
...
Get Output From the logging Module in IPython Notebook
...y creating a
StreamHandler with a default Formatter and adding it to the root
logger. The functions debug(), info(), warning(), error() and
critical() will call basicConfig() automatically if no handlers are
defined for the root logger.
This function does nothing if the root logger alre...
Git Push Error: insufficient permission for adding an object to repository database
...
I must had issued git push using root account in my working directory. I found the owner of some git repository files is root (-r--r--r--. 1 root root 6380 5月 25 12:39 9b44bd22f81b9a8d0a244fd16f7787a1b1d424) according this answer.
...
sendmail: how to configure sendmail on ubuntu? [closed]
...t the following, matching up to your smtp server:
AuthInfo:your.isp.net "U:root" "I:user" "P:password"
#Generate the Authentication database, make both files readable only by root
makemap hash client-info < client-info
chmod 600 client-info
cd ..
Add the following lines to sendmail.mc, but bef...
How can I get the current user's username in Bash?
...ernative to whoami is id -u -n.
id -u will return the user id (e.g. 0 for root).
share
|
improve this answer
|
follow
|
...
How to get process ID of background process?
...done
Then just run it as: ./bgkill.sh with proper permissions of course
root@umsstd22 [P]:~# ./bgkill.sh
PID=23757
dPidLst= 23758 23759
UNO
DOS
UID PID PPID C STIME TTY TIME CMD
root 3937 3935 0 11:07 pts/5 00:00:00 -bash
root 23757 3937 0 11:55 pts/5 00:00:00...
How can I view the shared preferences file using Android Studio?
...ys to do this on Eclipse, but I'm debugging on Android Studio. My phone is rooted. I read that having root access is important to read these types of files. If there is no way, then I will look up how to access the info through my program then output it to log cat. Hopefully, though, I can just view...
Access properties of the parent with a Handlebars 'each' loop
...e information, see the Handlebars documentation on paths.
Dereference the root scope with @root
By prepending @root to the property path, you can navigate downwards from the topmost scope (as shown in caballerog's answer).
For more information, see the Handlebars documentation on @data variables....
Applications are expected to have a root view controller at the end of application launch
... see the layout from a storyboard make sure you got rid of the code in you root delegate function "application didFinishLaunchingWithOptions..." that's pointed at in main.m and only have "return YES;" in it.
– Olivier de Jonge
Jun 26 '14 at 11:01
...