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Efficiently updating database using SQLAlchemy ORM
... you say
for c in session.query(Stuff).all():
c.foo = c.foo+1
session.commit()
it will do what it says, go fetch all the objects from the database, modify all the objects and then when it's time to flush the changes to the database, update the rows one by one.
Instead you should do this:
se...
Is a LINQ statement faster than a 'foreach' loop?
...nixcodymanix
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Which encoding opens CSV files correctly with Excel on both Mac and Windows?
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This is no real solution, sooner or later you will come across a character which is not convertible to WINDOWS-1252.
– Walter Tross
Mar 13 '15 at 16:25
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Custom error pages on asp.net MVC3
...ed TrySkipIisCustomErrors to fix it for integrated IIS7. See stackoverflow.com/questions/1706934/…
– Pavel Savara
Aug 23 '12 at 11:11
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Why can't I forward-declare a class in a namespace using double colons?
... class Class is later defined as a member of different namespace - it is a completely different class that has nothing to do with the one you declared here.
Once you get to the point of defining the pre-declared class, you don't need to "reopen" the namespace again. You can define it in the global ...
Determine distance from the top of a div to top of window with javascript
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You can use .offset() to get the offset compared to the document element and then use the scrollTop property of the window element to find how far down the page the user has scrolled:
var scrollTop = $(window).scrollTop(),
elementOffset = $('#my-element')....
Why are C character literals ints instead of chars?
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Multi-character constants are not portable, even between compilers on a single machine (though GCC seems to be self-consistent across platforms). See: stackoverflow.com/questions/328215
– Jonathan Leffler
Jan 12 '09 at 1:10
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Xcode : failed to get the task for process
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This error happens if you have used a Distribution Provisioning Profile for debugging to device...
Is there a Java equivalent to C#'s 'yield' keyword?
... if (i == 5) yieldBreak();
}
}
};
While Jim's is way more complicated, requiring you to adept a generic Collector which has a collect(ResultHandler) method... ugh. However, you could use something like this wrapper around Jim's code by Zoom Information which greatly simplifies that:...
What does principal end of an association means in 1:1 relationship in Entity framework
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Note you may need to add using System.ComponentModel.DataAnnotations.Schema; to get ForeignKey in VS2012
– stuartdotnet
Jun 28 '13 at 23:37
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