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How do I drop a foreign key in SQL Server?
...ck of existence of the constraint then drop it.
if exists (select 1 from sys.objects where name = 'Company_CountryID_FK' and type='F')
begin
alter table company drop constraint Company_CountryID_FK
end
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Locate Git installation folder on Mac OS X
I'm just curious, Where Git get installed (via DMG) on Mac OS X file system?
11 Answers
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How do you calculate program run time in python? [duplicate]
...he execution of an entire script, you can run it under time on a unix-like system.
kotai:~ chmullig$ cat sleep.py
import time
print "presleep"
time.sleep(10)
print "post sleep"
kotai:~ chmullig$ python sleep.py
presleep
post sleep
kotai:~ chmullig$ time python sleep.py
presleep
post sleep
real...
find first sequence item that matches a criterion [duplicate]
...his affect readability? E.g. first non-path arugment: next((arg for arg in sys.argv if not os.path.exists(arg)), None) - not very friendly.
– Tomasz Gandor
Mar 18 '16 at 11:38
4
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How do I write a Python dictionary to a csv file? [duplicate]
...Pro tip: When developing code like this, set the writer to w = csv.writer(sys.stderr) so you can more easily see what is being generated. When the logic is perfected, switch back to w = csv.writer(f).
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Allowing specific values for an Argparse argument [duplicate]
... help='Special testing value')
args = parser.parse_args(sys.argv[1:])
See the docs for more details.
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关于Rsyslogd 的一些配置 (高性能、高可用 rsyslogd) - C/C++ - 清泛网 - ...
关于Rsyslogd 的一些配置 (高性能、高可用 rsyslogd)high_performance_rsyslogd最近公司的日志传输服务器因网间带宽被调整后出现了日志堵塞的情况，更为严重的是公司大量的业务日志也是通过 PHP 的 syslog接口传输的...最近公司的日志传...
jumpserver-华为云免费堡垒机解决方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...垒机解决方案一、环境CentOS 6.x x86_64 minivi etc hostsvi etc sysconfig networkservice iptables stopchkconfig iptables off关闭SELinu...一、环境
CentOS 6.x x86_64 mini
vi /etc/hosts
vi /etc/sysconfig/network
service iptables stop
chkconfig iptables off
关闭SELi...
phpcms form::checkcode()出错，如何使用phpcms验证码？ - 更多技术 - 清泛...
...加载这个php导致。
解决：
相应位置添加 pc_base::load_sys_class('form', '', 0);phpcms checkcode 验证码
Linux非root用户运行程序的一些注意事项 - 操作系统(内核) - 清泛网 - 专注...
...来的文件权限是666，想要修改默认值，使用：
#include <sys/stat.h>
umask(026); //去掉组写权限及其他用户所有权限
End.
linux root 端口 umask