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What is a 'multi-part identifier' and why can't it be bound?

I continually get these errors when I try to update tables based on another table. I end up rewriting the query, change the order of joins, change some groupings and then it eventually works, but I just don't quite get it. ...
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HTML5 Email Validation

It is said "With HTML5, we need no more js or a server side code to check if the user's input is a valid email or url address" ...
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How do you use “

...ed reading about scoping in the R intro , and am very curious about the <<- assignment. 6 Answers ...
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What is the difference between and ?

What is the difference between <section> and <div> in HTML ? Aren't we defining sections in both cases? ...
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npm: disable postinstall script for package

Is it any npm option exist to disable postinstall script while installing package? Or for rewriting any field from package.json? ...
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How to get the unix timestamp in C#

I have had look around stackoverflow, and even looked at some of the suggested questions and none seem to answer, how do you get a unix timestamp in C#? ...
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Python in Xcode 4+?

How does one create a Python friendly environment in Xcode 4, 5, 6 or 7? 8 Answers 8 ...
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Disable single warning error

Is there a way to disable just a single warning line in a cpp file with visual studio? 11 Answers ...
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How to get past the login page with Wget?

I am trying to use Wget to download a page, but I cannot get past the login screen. 9 Answers ...
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Change Name of Import in Java, or import two classes with the same name

In Python you can do a: 7 Answers 7 ...