大约有 2,400 项符合查询结果（耗时：0.0115秒） [XML]
Rails 4: List of available datatypes
...also take advantage of these:
:hstore
:json
:jsonb
:array
:cidr_address
:ip_address
:mac_address
They are stored as strings if you run your app with a not-PostgreSQL database.
Edit, 2016-Sep-19:
There's a lot more postgres specific datatypes in Rails 4 and even more in Rails 5.
...
How do I find out which computer is the domain controller in Windows programmatically?
I am looking for a way to determine what the Name/IP Address of the domain controller is for a given domain that a client computer is connected to.
...
Java URL encoding of query string parameters
...tring urlStr = "http://www.example.com/CEREC® Materials & Accessories/IPS Empress® CAD.pdf"
URL url= new URL(urlStr);
URI uri = new URI(url.getProtocol(), url.getUserInfo(), url.getHost(), url.getPort(), url.getPath(), url.getQuery(), url.getRef());
Then convert that Uri to ASCII string:
ur...
Why does an SSH remote command get fewer environment variables then when run manually? [closed]
...as your normal shell is either a login shell or an interactive shell. Description follows, from man bash:
A login shell is one whose first character of argument
zero is a -, or one started with the --login option.
An interactive shell is one started without non-option...
When to use Tornado, when to use Twisted / Cyclone / GEvent / other [closed]
... includes:
good support for test-driven development of all the following
TCP servers, clients, transport layer security
SSH client and server
IMAP4, ESMTP, POP3 clients and servers
DNS client and server
HTTP client and server
IRC, XMPP, OSCAR, MSN clients and servers
In this last department, at ...
What is the proper way to use the node.js postgresql module?
...y. Yeah, it's async and so that's alright...but wouldn't you
rather multiply your throughput by 10x? Use pg.connect set the
pg.defaults.poolSize to something sane (we do 25-100, not sure the
right number yet).
new pg.Client is for when you know what you're doing. When you need
a sin...
How do I use sudo to redirect output to a location I don't have permission to write to?
...ut. The redirection of the output is not performed by sudo.
There are multiple solutions:
Run a shell with sudo and give the command to it by using the -c option:
sudo sh -c 'ls -hal /root/ > /root/test.out'
Create a script with your commands and run that script with sudo:
#!/bin/sh
ls -hal...
SSL Connection / Connection Reset with IISExpress
...y name "IIS Express Development Certificate". If not, delete it. Or if multiple, delete all.
On Visual Studio, select project and under property tab, enable SSL=true. Save, Build and Run. IIS Express will generate a new 'localhost' certificate.
Note: If it doesn't work, try these: make sure to di...
What are the alternatives now that the Google web search API has been deprecated? [closed]
...cess) any of the Services through any automated means (including use of scripts or web crawlers)..."
– ændrük
Mar 6 '11 at 17:53
18
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PHP function to generate v4 UUID
... @PavlePredic mt_srand(crc32(serialize([microtime(true), 'USER_IP', 'ETC']))); (i'm another wiliam :P)
– Wiliam
Mar 24 '13 at 13:41
...