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MySQL - Rows to Columns
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Values in the history.hostid column will become y-values in the pivot table. Values in the history.itemname column will become x-values (for obvious reasons).
When I have to solve the problem of creating a pivot table, I tackle it using a three-step process (with ...
OnNotify函数 ON_NOTIFY消息总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...现重写ON_MESSAGE宏不能实现，具有ID判断的只在WM_NOTIFY和WM_COMMAND两个消息中，两个消息最终都会进入 CCmdTarget::OnCmdMsg函数进行ID判断。在比较之下，决定使用WM_NOTIFY消息。
下面分析下WM_NOTIFY消息的路由过程。
分析 CWnd::OnWndMsg函...
.war vs .ear file
... in one archive is normal. Here is a more elaborate explanation: adam-bien.com/roller/abien/entry/ears_wars_and_size_matters
– Kaspars Rinkevics
Jun 28 '17 at 7:41
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Plot a legend outside of the plotting area in base graphics?
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MSBuild doesn't copy references (DLL files) if using project dependencies in solution
...ssembly B (like you would have to do with option 1).
You can have explicit comments saying why the dummy code needs to be there and not to remove it. So if somebody does delete the code by accident (say with a refactor tool that looks for unused code), you can easily see from source control that the...
Why do you create a View in a database?
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A view provides several benefits.
1. Views can hide complexity
If you have a query that requires joining several tables, or has complex logic or calculations, you can code all that logic into a view, then select from the view just like you would a table.
2. Views can be used...
Best way to add page specific JavaScript in a Rails 3 app?
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I liked this article railsapps.github.com/rails-javascript-include-external.html
– Ziggy
Mar 29 '13 at 20:33
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How do I call ::std::make_shared on a class with only protected or private constructors?
... edited May 23 '17 at 12:10
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answered Nov 16 '11 at 5:53
OmnifariousOmnifario...
Save icon: Still a floppy disk? [closed]
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The floppy disk icon has become the standard for saving files. It's a highly recognizable icon and there's no reason to change that. Consistency between applications is a wonderful thing.
I suspect that over time the icon will grow more stylized and l...
Why does Git treat this text file as a binary file?
... edited May 23 '17 at 11:47
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answered Jul 28 '11 at 9:10
Philip OakleyPhilip ...