大约有 19,000 项符合查询结果（耗时：0.0218秒） [XML]
ActiveRecord.find(array_of_ids), preserving order
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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...
Mac SQLite editor [closed]
I am aware of CocoaMySQL but I have not seen a Mac GUI for SQLite, is there one?
15 Answers
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What are the use cases for selecting CHAR over VARCHAR in SQL?
...rchar, it's free to use 1-3 bytes per character as needed. This is in the MySQL manual: dev.mysql.com/doc/refman/5.0/en/charset-unicode-utf8.html
– Gavin Towey
Mar 27 '14 at 2:14
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How to replace spaces in file names using a bash script
... spaces with underscores in file and directory names starting from a given root directory? For example:
18 Answers
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How to uninstall the “Microsoft Advertising SDK” Visual Studio extension?
... you can find the GUID for it from the registry (somewhere in HKEY_CLASSES_ROOT\Installer).
– Maurice Gilden
Jan 21 '16 at 11:46
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How to enable cURL in PHP / XAMPP
...restart the Apache service.
NB: In newer XAMPP versions, PHP has moved to root xampp folder xampp\php\php.ini.
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Command not found when using sudo
...un a command using sudo you are effectively running it as the superuser or root.
The reason that the root user is not finding your command is likely that the PATH environment variable for root does not include the directory where foo.sh is located. Hence the command is not found.
The PATH enviro...
Servlet returns “HTTP Status 404 The requested resource (/servlet) is not available”
... can even do without it and put the JSP file directly in webcontent/webapp root, but I'm just taking over this from your question.
Set servlet URL in url-pattern
The servlet URL is specified as the "URL pattern" of the servlet mapping. It's absolutely not per definition the classname/filename of t...
How can I connect to Android with ADB over TCP? [closed]
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Manual Process
From your device, if it is rooted
According to a post on xda-developers, you can enable ADB over Wi-Fi from the device with the commands:
su
setprop service.adb.tcp.port 5555
stop adbd
start adbd
And you can disable it and return ADB to listening on U...
warning: Insecure world writable dir /usr/local/bin in PATH, mode 040777
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You will need to have root access to do this. If you aren't already the administrative user, login as the administrator. Then use 'sudo' to change the permissions:
sudo chmod go-w /usr/local/bin
Obviously, that will mean you can no longer ins...