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SQL Server Insert if not exists

...ROM EmailsRecebidos WHERE De = @_DE AND Assunto = @_ASSUNTO AND Data = @_DATA); END replace with BEGIN IF NOT EXISTS (SELECT * FROM EmailsRecebidos WHERE De = @_DE AND Assunto = @_ASSUNTO ...
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SQLAlchemy: What's the difference between flush() and commit()?

What the difference is between flush() and commit() in SQLAlchemy? 5 Answers 5 ...
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django syncdb and an updated model

...support for migrations - take a look at the documentation. For Django 1.6 and earlier Django doesn't support migrations out of the box. There is a pluggable app for Django that does exactly that though, and it works great. It's called South. ...
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How is “=default” different from “{}” for default constructor and destructor?

...om simply doing {}. With the latter, the function becomes "user-provided". And that changes everything. This is a trivial class by C++11's definition: struct Trivial { int foo; }; If you attempt to default construct one, the compiler will generate a default constructor automatically. Same goes...
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How do I download a binary file over HTTP?

How do I download and save a binary file over HTTP using Ruby? 9 Answers 9 ...
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How to redirect output of an entire shell script within the script itself?

...ll of the output of a Bourne shell script to somewhere, but with shell commands inside the script itself? 5 Answers ...
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Vim: Move cursor to its last position

...r to its previous position (while in normal mode)? Something to cycle back and forth in the list of previous cursor positions would be ideal. But also just to switch to the last location would suffice (something like cd - in bash with directories). ...
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@RequestBody and @ResponseBody annotations in Spring

Can someone explain the @RequestBody and @ResponseBody annotations in Spring 3? What are they for? Any examples would be great. ...
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iOS Safari – How to disable overscroll but allow scrollable divs to scroll normally?

I'm working on an iPad-based web app, and need to prevent overscrolling so that it seems less like a web page. I'm currently using this to freeze the viewport and disable overscroll: ...
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Python time measure function

I want to create a python function to test the time spent in each function and print its name with its time, how i can print the function name and if there is another way to do so please tell me ...