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Difference between a theta join, equijoin and natural join
I'm having trouble understanding relational algebra when it comes to theta joins, equijoins and natural joins. Could someone please help me better understand it? If I use the = sign on a theta join is it exactly the same as just using a natural join?
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What is the worst gotcha in C# or .NET? [closed]
... member, helps a lot!
– chakrit
Oct 28 '08 at 0:00
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I use automatic properties where I can, sto...
FB OpenGraph og:image not pulling images (possibly https?)
...eing a bug..... and we looked hard. Posting our workaround in the question comments.
– Cyprus106
Jan 18 '12 at 17:23
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Free FTP Library [closed]
Can you recommend a free FTP library(class) for C#.
7 Answers
7
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Amazon S3 direct file upload from client browser - private key disclosure
... server.
Here's the official doc links:
Diagram: http://docs.aws.amazon.com/AmazonS3/latest/dev/UsingHTTPPOST.html
Example code: http://docs.aws.amazon.com/AmazonS3/latest/dev/HTTPPOSTExamples.html
The signed policy would go in your html in a form like this:
<html>
<head>
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pandas DataFrame: replace nan values with average of columns
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283
You can simply use DataFrame.fillna to fill the nan's directly:
In [27]: df
Out[27]:
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MSysGit vs. Git for Windows
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Are they not the same thing?
On: http://msysgit.github.com/ The title is Git for Windows, the application is msysgit.
Even in the event they are not, I expect the only differences will be in the method of compilation (i.e. compiler used and any options set) and any extraneous pa...
How to set custom header in Volley Request
... answered Jun 11 '13 at 17:43
CommonsWareCommonsWare
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Why does Vim save files with a ~ extension?
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edited Mar 28 '11 at 22:24
answered Mar 3 '09 at 18:04
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Why is jquery's .ajax() method not sending my session cookie?
...e a Cross Domain Problem.
Maybe you tried to call a url from www.domain-a.com while your calling script was on www.domain-b.com (In other words: You made a Cross Domain Call in which case the browser won't sent any cookies to protect your privacy).
In this case your options are:
Write a small pr...