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Naming convention for unique constraint
...r indices and constraints:
Primary key. _PK
Unique index/constraint. _AK{xx}
Non-Unique index. _IX{xx}
Check constraint. _CK{xx}
Default constraint. _DF{xx}
Foreign key constraint. _FK{xx}
Where {xx} is a 2-digit sequence number, starting at 01 for each constraint type per table. Primary key doe...
Rebase a single Git commit
...
You can cherry-pick XX to master.
git checkout master
git cherry-pick <commit ID of XX>
And remove the last commit from the feature branch with git reset.
git checkout Feature-branch
git reset --hard HEAD^
...
Linux ftp上传文件 实战篇 - 开源 & Github - 清泛网 - 专注IT技能提升
... get等Linux命令完成ftp文件上传下载。连接FTP命令：
$ftp xx.xx.xx.xx
username
password
ftp> passive
（需要关闭passive模式，不然上传不了）
查看远程FTP服务器文件命令：
ftp> ls
若ls卡住不动(如上图)，是由于防火墙未关闭导...
phpcms 启用手机门户（自动判断手机浏览器） - 更多技术 - 清泛网 - 专注C/...
...定一个域名作为你手机wap站点的访问域名，例如：http: m.xxx.com。接下来在域名管理系统中简析这个域名到你的服务器地址。2、修改 ca...1、确定一个域名作为你手机wap站点的访问域名，例如：http://m.xxx.com 。接下来在域名管理系...
Linux Shell脚本参数的获取方法 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...数$# 参数个数（脚本名除外）$? 取上个命令退出码（exit xx, 函数return xx）一般0成功,1失败#! bin shecho ...$0 (脚本名)，$1-$9 参数$# 参数个数（脚本名除外）
$? 取上个命令退出码（exit xx, 函数return xx）一般0成功,1失败
#!/bin/sh
echo '...
Linux ftp上传文件 实战篇 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
... get等Linux命令完成ftp文件上传下载。连接FTP命令：
$ftp xx.xx.xx.xx
username
password
ftp> passive
（需要关闭passive模式，不然上传不了）
查看远程FTP服务器文件命令：
ftp> ls
若ls卡住不动(如上图)，是由于防火墙未关闭导...
Using HeapDumpOnOutOfMemoryError parameter for heap dump for JBoss
I was told I can add the -XX:+HeapDumpOnOutOfMemoryError parameter to my JVM start up options to my JBoss start up script to get a heap dump when we get an out of memory error in our application. I was wondering where this data gets dumped? Is it just to the console, or to some log file? If it'...
HTML5 Canvas Resize (Downscale) Image High Quality?
... var w0 = dy * dy; //pre-calc part of w
var xx_start = Math.floor(i * ratio_w);
var xx_stop = Math.ceil((i + 1) * ratio_w);
for (var xx = xx_start; xx < xx_stop; xx++) {
var dx = Math.abs(center_x - (xx + 0.5)) / r...
How do I use LINQ Contains(string[]) instead of Contains(string)
...; table = GetDataFromSomewhere();
List<user> newTable = table.Where(xx => uids.Contains(xx.uid)).ToList();
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sed: print only matching group
...up within a pattern, you can do it with a 2nd grep.
# To extract \1 from /xx([0-9]+)yy/
$ echo "aa678bb xx123yy xx4yy aa42 aa9bb" | grep -Eo 'xx[0-9]+yy' | grep -Eo '[0-9]+'
123
4
# To extract \1 from /a([0-9]+)b/
$ echo "aa678bb xx123yy xx4yy aa42 aa9bb" | grep -Eo 'a[0-9]+b' | grep -Eo '[0-9]+'
...
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