大约有 2,200 项符合查询结果（耗时：0.0383秒） [XML]
How to install mongoDB on windows?
..., it’s not an installation it’s just Downloading…
I. Download the zip file http://www.mongodb.org/downloads
II. Extract it and copy the files into your desired location.
III. Start the DB engine.
IV. Test the installation and use it.
That's it! So simple, right? Ok let’s start
1. Downlo...
Hidden Features of MySQL
... access. For example:
--datadir will specify the data directory and
--skip-innodb will turn off the inno option and save you 10-20M
More here
http://dev.mysql.com/tech-resources/articles/mysql-c-api.html
Download Chapter 7 - Free
InnoDB is transactional but there is a performance overhead that...
Create an index on a huge MySQL production table without table locking
...SQL is really, really stupid about this (and a few other things).
Test Script:
(
for n in {1..50}; do
#(time mysql -uroot -e 'select * from website_development.users where id = 41225\G'>/dev/null) 2>&1 | grep real;
(time mysql -uroot -e 'update website_development.users set...
Daylight saving time and time zone best practices [closed]
...Perl, use DateTime.
If using Python, use pytz or dateutil.
If using JavaScript, use moment.js with the moment-timezone extension.
If using PHP > 5.2, use the native time zones conversions provided by DateTime, and DateTimeZone classes. Be careful when using DateTimeZone::listAbbreviations() - see...
Sorting 1 million 8-decimal-digit numbers with 1 MB of RAM
...W3520. You can verify that the program works using the following Python script, assuming a program name of sort1mb.exe.
from subprocess import *
import random
sequence = [random.randint(0, 99999999) for i in xrange(1000000)]
sorter = Popen('sort1mb.exe', stdin=PIPE, stdout=PIPE)
for value in sequ...
RESTful Authentication
...REST. Since we allow communication not only over HTTP/1.1, but also named pipes or GDI messages (locally), we tried to implement a truly RESTful authentication pattern, and not rely on HTTP specificity (like header or cookies).
Later Note: adding a signature in the URI can be seen as bad practice (...
Cross-browser testing: All major browsers on ONE machine
...ly outdated. For this reason, I refer to Usage share of web browsers on Wikipedia, and the following sites for the latest browser version information. Each site is suffixed by a brief usage guide.
Can I use - Browser usage table, based on data from StatCounter and other sources.
StatCounter - Stat...
用户界面（UI）组件 · App Inventor 2 中文网
...或设置真）后，所有默认大小的文本都会增加大小。
块工具包
表示屏幕子集的 JSON 字符串。模板应用程序的作者可以使用它来控制项目中可用的组件、设计器属性和代码块。
开屏动画
设置此表单打开的过渡动画类型。
...
How to choose an AES encryption mode (CBC ECB CTR OCB CFB)?
... client side. You will encrypt it of course so the user cannot read and manipulate the data. So what mode should you use? Coming here you read the top answer (sorry for singling you out myforwik). The first one covered - ECB - is not for you, you want to encrypt more than one block, the next one - C...
What is the maximum length of a URL in different browsers?
...ngth are found in
practice. It is RECOMMENDED that all HTTP senders and recipients
support, at a minimum, request-line lengths of 8000 octets.
...and the reality
That's what the standards say. For the reality, there was an article on boutell.com (link goes to Internet Archive backup) that discussed...