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In SQL Server, when should you use GO and when should you use semi-colon ;?
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Update: in SQL Server 2012 NOT using semicolons is deprecated, meaning they will be required in next version. So it is a good practice to use semicolons, as it will require less work in case of migration (and because it is a standard). Source: tec...
Why doesn't TFS get latest get the latest?
...hat TFVC (in "Server Workspace" mode, which was the mechanism prior to TFS 2012) does not examine the state of your local filesystem. TFVC Server Workspaces are a "checkout-edit-checkin" type of system where this is by-design, an intentional decision made to massively reduce the amount of file I/O ...
App Inventor 2 串口调试 App 全方案技术调研 - App应用开发 - 清泛IT社区，为创新赋能！
...常用的工具。很多同学问：App Inventor 2 能不能做一个手机版的串口调试器？答案是：不仅能做，而且有多条技术路线可选。本文从源码层面深度剖析 App Inventor 2 的串口通信能力，给出完整的方案对比和实现建议。
一、先说...
When do I need to use a semicolon vs a slash in Oracle SQL?
...statement:
SQL*Plus: Release 11.2.0.1.0 Production on Wed Apr 18 12:37:20 2012
Copyright (c) 1982, 2010, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
With the Partitioning and OLAP options
SQL> drop table foo;
Table droppe...
NSObject +load and +initialize - What do they do?
...] init];
}
return 0;
}
This program prints two lines of output:
2012-11-10 16:18:38.984 testApp[7498:c07] in Superclass initialize; self = Superclass
2012-11-10 16:18:38.987 testApp[7498:c07] in Superclass initialize; self = Subclass
Since the system sends the initialize method lazily, ...
Oracle 11.2.0.4 RAC FOR redhat 6.4 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...输入yes
回到安装界面点击下一步
下一步
企业版 下一步
‘
下一步
下一步
这两个错误可以忽略
点击 是
开始安装
按提示 执行脚本
节点1
/oracle/app/product/11.2.0/dbhome_1/root.sh
节点2
/oracle...
Generate random numbers using C++11 random library
...numbers generated by rand.
(quote from Lippmans C++ primer fifth edition 2012)
I finally found a the best explaination out of 20 books in Bjarne Stroustrups newer ones - and he should know his stuff - in "A tour of C++ 2019", "Programming Principles and Practice Using C++ 2016" and "The C++ Pr...
Retargeting solution from .Net 4.0 to 4.5 - how to retarget the NuGet packages?
...ve migrated a solution that is currently targeting .NET 4.0 in VS2010 to VS2012 and now I would like to re-target it to .Net 4.5
...
手握利器，直面“蓝脸”! ——使用WinDbg抗击系统崩溃 - 操作系统(内核) - ...
...以让程序自动下载，既节省时间，又可以确保符号文件是最新的并且是正确的。在WinDbg中点击“File”菜单，选择“Symbol File Path …”，在打开的对话框中输入SRV*DownstreamStore*http://msdl.microsoft.com/download/symbols后点击“OK”按钮即可...
TCP 的那些事儿（下） - 更多技术 - 清泛网 - 专注C/C++及内核技术
...叫Jacobson / Karels Algorithm（参看RFC6289）。这个算法引入了最新的RTT的采样和平滑过的SRTT的差距做因子来计算。 公式如下：（其中的DevRTT是Deviation RTT的意思）
SRTT = SRTT + α (RTT – SRTT) —— 计算平滑RTT
DevRTT = (1-β)*DevRTT ...