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Ordering by specific field value first
...LD(name, "core", "board", "other")
If you only care that "core" is first and the other values don't matter:
SELECT id, name, priority
FROM mytable
ORDER BY FIELD(name, "core") DESC
If you want to sort by "core" first, and the other fields in normal sort order:
SELECT id, name, priority
FROM my...
Can an Option in a Select tag carry multiple values?
...select tag with some options in a HTML form:
(the data will be collected and processed using PHP)
15 Answers
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MFC学习总结 (90个技巧) dlg 上建立View - C/C++ - 清泛网 - 专注C++内核技术
...ainFrame, CFrameWnd)
" // {{AFX_MSG_MAP(CMainFrame)
" ON_COMMAND(ID_VIEW_STATUS_BAR, OnViewStatusBar)
" ON_WM_CREATE()
" // }}AFX_MSG_MAP
END_MESSAGE_MAP()
然后Create函数的最后(返回值之前)实现如下代码：
CRect rc;
"VERIFY(m_wndAboutButton.Create(_T("...
Hide all but $(this) via :not in jQuery selector
... a mistake with the dot. I somehow fail to see how this is easier than Alexanders solution, which seems more clean. I know i asked how to do it with :not, but the siblings method just seems more clean.
– Kordonme
Aug 26 '09 at 6:13
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Design Pattern for Undo Engine
...
Most examples I've seen use a variant of the Command-Pattern for this. Every user-action that's undoable gets its own command instance with all the information to execute the action and roll it back. You can then maintain a list of all the commands that have been executed a...
LINQ Single vs First
...ou mean the other.
Note: In my code, I will typically use FirstOrDefault() and SingleOrDefault() but that's a different question.
Take, for example, a table that stores Customers in different languages using a Composite Key ( ID, Lang ):
DBContext db = new DBContext();
Customer customer = db.Custome...
LINQ To Entities does not recognize the method Last. Really?
...mes down to the fact that eventually it has to translate that query to SQL and SQL has a SELECT TOP (in T-SQL) but not a SELECT BOTTOM (no such thing).
There is an easy way around it though, just order descending and then do a First(), which is what you did.
EDIT:
Other providers will possibly hav...
Android - implementing startForeground for a service?
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@Snicolas: Thank you for pointing out a flaw in Android. I will work on getting this fixed.
– CommonsWare
Oct 12 '12 at 15:19
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How to kill a process running on particular port in Linux?
...omcat /bin directory. But found that the server was not closed properly. And thus I was unable to restart My tomcat is running on port 8080 .
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How do I migrate a model out of one django app and into a new one?
...outh installed for migrations, but I don't think this is something it can handle automatically. How can I migrate one of the models out of the old app into a new one?
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