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What's the difference between RANK() and DENSE_RANK() functions in oracle?
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RANK gives you the ranking within your ordered partition. Ties are assigned the same rank, with...
How do I check the difference, in seconds, between two dates?
...,23,59,59)
b = dt.datetime(2013,12,31,23,59,59)
(b-a).total_seconds()
86400.0
#note that seconds doesn't give you what you want:
(b-a).seconds
0
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C#位运算符（C#按位与、按位或 等） - 更多技术 - 清泛网 - 专注C/C++及内核技术
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a ^ b
<<
位左移运算
2
a<<4
>>
位右移运算
2
a>>2
1、位逻辑非运算
位逻辑非运算是单目的，只有一个运算对象。位逻辑非运算按位对运算对象的值进行非运算...
how to fire event on file select
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answered May 9 '11 at 21:48
Vincent RamdhanieVincent Ramdhanie
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Search for all files in project containing the text 'querystring' in Eclipse
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4 Answers
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Does a finally block run even if you throw a new Exception?
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edited Oct 13 '16 at 7:44
Audrius Meskauskas
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Sass negative variable value?
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answered Nov 8 '12 at 19:44
Zoltan TothZoltan Toth
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How to create GUID / UUID?
...ifier), also known as GUIDs (Globally Unique IDentifier), according to RFC 4122, are identifiers designed to provide certain uniqueness guarantees.
While it is possible to implement an RFC-compliant UUIDs in a few lines of JS (E.g. see @broofa's answer, below) there are several common pitfalls:
I...
How do you set the startup page for debugging in an ASP.NET MVC application?
...ng the application at the application root? For example: http://localhost:49742/
6 Answers
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