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What is the difference between “INNER JOIN” and “OUTER JOIN”?
...ay find more efficient ways of executing the query than the purely logical description above but the final result must be the same)
I'll start off with an animated version of a full outer join. Further explanation follows.
Explanation
Source Tables
First start with a CROSS JOIN (AKA Cartesian Pro...
Get Base64 encode file-data from Input Form
...hat support it (Chrome, Firefox and the as-yet unreleased Safari 6), and a PHP script that echos back POSTed file data as Base64-encoded data for the other browsers.
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JOIN queries vs multiple queries
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@cHao says who? I just looked up SMF and phpBB and saw JOINs between 3 tables - if you add plugins or modifications they could easily add to that. Any sort of large application has the potential for many JOINs. Arguably a poorly written/mis-used ORM could JOIN table...
【BLE技术内幕】BLE技术揭秘 - 创客硬件开发 - 清泛IT论坛，有思想、有深度
文章源自：http://doc.iotxx.com/index.php?title=BLE技术揭秘
BLE技术揭秘
BLE是低功耗蓝牙的英文缩写（Bluetooth Low Energy），是蓝牙4.0版本起开始支持的新的、低功耗版本的蓝牙技术规范。蓝牙技术联盟（Bluetooth SIG）在2010年发布了跨...
How do I create an HTML table with a fixed/frozen left column and a scrollable body?
... i also used jQuery to .clone() the table, once it has been generated by php+MySQL+ajax, and insert it into a cleaned out div...
– Peter
Mar 6 '18 at 22:27
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Change MySQL default character set to UTF-8 in my.cnf?
Currently we are using the following commands in PHP to set the character set to UTF-8 in our application.
18 Answers
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Sublime Text 2: Trim trailing white space on demand
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I found a soulution here:
http://www.sublimetext.com/forum/viewtopic.php?f=4&t=4958
You can modify the package
trim_trailing_white_space.py
located in the default packages directory, this way:
import sublime, sublime_plugin
def trim_trailing_white_space(view):
trailing_white_spa...
How can I develop for iPhone using a Windows development machine?
... $10 a month. I am sure others have too. [1]: virtualmacosx.com/index.php/xcode-plans
– Prof. Falken
May 6 '13 at 14:58
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What is the best CSS Framework and are they worth the effort?
...ssues. You will invariably run into them, just as you would working with a PHP or JavaScript framework. And you need to know how to deal with them. There is a common saying that you should write your own framework first, before using someone else's.
Taking a quick peek at Blueprint, I would not re...
Explain “claims-based authentication” to a 5-year-old
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Claim: what you claim to be true. This can be a piece of information or a description of a permission you're claiming to have. The system to which you present your claims only need to understand what the claim is/means and also be able to verify with the authority.
Authority: The system that puts...