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MySQL复制的概述、安装、故障、技巧、工具 - 数据库(内核) - 清泛网 - 专注...
...会主服务器？
答案：在一主多从的环境总，需选择数据最新的从服务器做新的主服务器。如下图所示：
提升从服务器为主服务器
在一主（Server1）两从（Server2,、Server3）环境中，Server1宕机后，等到Server2和Server3把宕机前同...
How to combine date from one field with time from another field - MS SQL Server
...atetime and time are incompatible in the add operator. error on SQL Server 2012
– Devin Prejean
May 18 '16 at 15:45
4
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.htaccess: Invalid command 'RewriteEngine', perhaps misspelled or defined by a module not included i
... sure that you have installed Visual C++ Redistributable for Visual Studio 2012 : VC11 vcredist_x64/86.exe
http://www.microsoft.com/en-us/download/details.aspx?id=30679
You may need to have Visual Studio 2012 Update 3 (VS2012.3)
http://www.microsoft.com/en-us/download/details.aspx?id=30679 (vcre...
std::function vs template
...he generated assembly (or debugging the assembly code), one can see that VS2012's optimizer is clever enough to realize that the result of calling calc1 is independent of the iteration and moves the call out of the loop:
for (int i = 0; i < 1e8; ++i) {
}
calc1([](float arg){ return arg * 0.5f; }...
NUnit Unit tests not showing in Test Explorer with Test Adapter installed
I've installed NUnit Test Adapter for VS2012 + 2013. When I first installed the Adapter tests were showing up, but they stopped showing up for some reason today. After building, rebuilding, cleaning, restarting, nothing shows up in Test Explorer. Why would this be happening? I'm using VS2013 Ult...
Adding a guideline to the editor in Visual Studio
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Here's the link for the VS 2012 version.. visualstudiogallery.msdn.microsoft.com/…
– Peter Bernier
Feb 18 '13 at 17:43
...
MySQL indexes - what are the best practices?
...heck out presentations like More Mastering the Art of Indexing.
Update 12/2012: I have posted a new presentation of mine: How to Design Indexes, Really. I presented this in October 2012 at ZendCon in Santa Clara, and in December 2012 at Percona Live London.
Designing the best indexes is a process...
How to remove “Server name” items from history of SQL Server Management Studio
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As of SQL Server 2012 you no longer have to go through the hassle of deleting the bin file (which causes other side effects). You should be able to press the delete key within the MRU list of the Server Name dropdown in the Connect to Server ...
Is there a way to access the “previous row” value in a SELECT statement?
...solution. The question is about MSSQL. MSSQL has such function in versions 2012+ (msdn.microsoft.com/en-us/en-en/library/hh231256(v=sql.120).aspx)
– Kromster
Dec 2 '15 at 8:07
10
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What is a proper naming convention for MySQL FKs?
...d Oct 2 '19 at 11:44
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