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SQL中使用update inner join和delete inner join；Oracle delete join替代...
...r join tb_Address addr on usr.nAddressFK = addr.nAddressID
where usr.id=123
update的格式是
update t1 set t1.name=’Liu’ from t1 inner join t2 on t1.id = t2.tid
MySQL，ACCESS 写法如下：
Sql代码
UPDATE mem_world AS mw1 INNER JOIN mem_world AS mw2
ON mw1.p...
Linux 搭建NTP时间同步服务器 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...火墙需要关闭，否则会阻止NTP服务端口，NTP服务默认端口123)
6、通过ntpq –p静态查看NTP服务器与外部NTP服务器同步情况。
通过watch ntpq -p 动态查看NTP服务器与外部NTP服务器同步情况，一般需要等5--10分钟左右NTP服务器...
do you have kcachegrind like profiling tools for mac [closed]
...qcachegrind (brew install qcachegrind)
XHProf: A Hierarchical Profiler for PHP (pecl install xhprof)
MCG premium app can analyse your application profile data natively on your Mac (released to the Mac App Store at $27)
Profiling Viewer, available on App Store at $25
Older: MacCallGrind (semi-commer...
How do I convert an object to an array?
...es with nested objects.
in your case you have to do something like;
<?php
print_r(get_object_vars($response->response->docs));
?>
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Remove characters after specific character in string, then remove substring?
...Url class already built for you.
I must also point out, however, that the PHP's replaceAll uses regular expressions for search pattern, which you can do in .NET as well - look at the RegEx class.
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Convert timestamp to date in MySQL query
... up as 2018-Nov-6. You may be looking for '%Y-%m-%d' as you'd format it in PHP (date('Y-m-d',$row->user_created_at)) - this (both variants, SQL and PHP) shows up as 2018-11-06
– Chris S.
Nov 7 '18 at 9:19
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Fastest Way to Find Distance Between Two Lat/Long Points
...DIT: Can this be put into one SQL statement?
I have no idea what mySql or Php is capable of, sorry.
I don't know where the best place is to build the four points, or how they could be passed to a mySql query in Php. However, once you have the four points, there's nothing stopping you combining your...
Regular expression to match any character being repeated more than 10 times
...
PHP's preg_replace example:
$str = "motttherbb fffaaattther";
$str = preg_replace("/([a-z])\\1/", "", $str);
echo $str;
Here [a-z] hits the character, () then allows it to be used with \\1 backreference which tries to matc...
Formatting numbers (decimal places, thousands separators, etc) with CSS
...avascript once it's in the DOM or format it via your language server-side (PHP/ruby/python etc.)
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Push existing project into Github
...ally. How much you have does not matter. But let's pretend that you have a php project. Let's say that you have the index.php, contact.php and an assets folder with images, css, and fonts. You can do it this way (easy), but there are many options:
Option 1
Login to your github account and create the...