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Excel RTD(Excel Real-Time Data)实时刷新数据技术 - C/C++ - 清泛网 - 专注C/C++及内核技术
...。
异步的，耗时的数据请求：传统的UDF函数存在的一个问题是，他是同步的，就是说，如果某个函数的执行时间过长，会导致前端界面的卡顿，尤其是在UDF函数访问数据库，WebService，或复杂的计算过程等不确定性及耗时的执行...
What is the difference between Elastic Beanstalk and CloudFormation for a .NET project?
...oying and scaling web applications and services developed with Java, .NET, PHP, Node.js, Python, Ruby, Go, and Docker on familiar servers such as Apache, Nginx, Passenger, and IIS.
You can simply upload your code and Elastic Beanstalk automatically handles the deployment, from capacity provisioning,...
PostgreSQL: Difference between text and varchar (character varying)
...ength array).
Check this article from Depesz: http://www.depesz.com/index.php/2010/03/02/charx-vs-varcharx-vs-varchar-vs-text/
A couple of highlights:
To sum it all up:
char(n) – takes too much space when dealing with values shorter than n (pads them to n), and can lead to subtle err...
Syntax highlighting/colorizing cat
...gle-file (shell script) and works good:
http://www.vim.org/scripts/script.php?script_id=4325
Last update is from December 2013. Hint: you can force file type recognition by vimcat -c "set ft=<type>".
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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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How to restore the permissions of files and directories within git if they have been modified?
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It's roughly accurate, see git.wiki.kernel.org/index.php/ContentLimitations. The exact permissions that get set appear to based on the server & possibly the client umask as well as a config setting, see stackoverflow.com/a/12735291/125150.
– Motti Stro...
Adding VirtualHost fails: Access Forbidden Error 403 (XAMPP) (Windows 7)
... The httpd-vhosts.conf is a config file for Apache. Apache 'runs' the php-code. Download and install xampp and change the config as stated above.
– Highmastdon
Nov 12 '12 at 11:52
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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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How to test an SQL Update statement before running it?
... @rickozoe below:
In general these lines will not be executed as once. In PHP f.e. you would write something like that (perhaps a little bit cleaner, but wanted to answer quick ;-) ):
$MysqlConnection->query('START TRANSACTION;');
$erg = $MysqlConnection->query('UPDATE MyGuests SET lastname=...
Which characters need to be escaped in HTML?
...st:
http://www.theukwebdesigncompany.com/articles/entity-escape-characters.php
So you need to escape <, or & when followed by anything that could begin a character reference. Also The rule on ampersands is the only such rule for quoted attributes, as the matching quotation mark is the only th...