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What are the main performance differences between varchar and nvarchar SQL Server data types?
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@cbmeeks: I don't code for what I don't know. But if you can use it with no noticeable performance hit, then your databases aren't big enough for it to matter...
– gbn
Mar 7 '12 at 15:48
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Python dictionary from an object's fields
Do you know if there is a built-in function to build a dictionary from an arbitrary object? I'd like to do something like this:
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How can a time function exist in functional programming?
I've to admit that I don't know much about functional programming. I read about it from here and there, and so came to know that in functional programming, a function returns the same output, for same input, no matter how many times the function is called. It's exactly like a mathematical function w...
leiningen - how to add dependencies for local jars?
... you could see if there's anything over there which can solve your problem now / might solve it in the future, when feature sets mature?
Anyway, it is possible that Leiningen may not in fact have a good story ready yet for some complex scenarios. If you feel this may be true of your case (and I mea...
What is “entropy and information gain”?
...er of a new unseen first-name.
name gender
----------------- Now we want to predict
Ashley f the gender of "Amro" (my name)
Brian m
Caroline f
David m
First step is deciding what features of the data are relevant to the target class we want t...
Spring @Autowired usage
... My reasons for preferring fully @Autowired have changed over time.
Right now I think the most important reason for using autowiring is that there's one less abstraction in your system to keep track of. The "bean name" is effectively gone. It turns out the bean name only exists because of xml. So a...
Why did my Git repo enter a detached HEAD state?
...eriment without creating a new branch:
git switch --detach HEAD~3
HEAD is now at 9fc9555312 Merge branch 'cc/shared-index-permbits'
it cannot detached by mistake a remote tracking branch
See:
C:\Users\vonc\arepo>git checkout origin/master
Note: switching to 'origin/master'.
You are in 'd...
What is the smallest possible valid PDF?
...iler<</Size 4/Root 1 0 R>>
Acrobat complains, but opens it. Now we're at 178 bytes.
Turns out that you don't need that /Size in the trailer. Now we're at 172:
%PDF-1.0
1 0 obj<</Type/Catalog/Pages 2 0 R>>endobj 2 0 obj<</Type/Pages/Kids[3 0 R]/Count 1>>endobj...
Detect if an element is visible with jQuery [duplicate]
...element on my page, but with two buttons, one for hide and one for show. I now want to have one button to toggle both .
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Mac SQLite editor [closed]
...es he is charging too little for it.
UPDATE: Since December 2008, Base is now up to version 2.1, it has become an excellent product. I don't remember what it used to cost, but I paid for the 1.x to 2.x upgrade. Still highly recommended.
ANOTHER UPDATE: Base is available on the Mac App Store, you m...