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Does Foreign Key improve query performance?
...ve performance at the time of reading
data but at the same time it slows down the performance at the time of
inserting / modifying / deleting data.
In case of reading the query, the optimizer can use foreign key constraints to
create more efficient query plans as foreign key
constraint...
Getting the closest string match
... a natural tendency to give low scores to strings that are meant to match (down the diagonal). This is very good.
Application
To allow the optimization of fuzzy matching, I weight each metric. As such, every application of fuzzy string match can weight the parameters differently. The formula that ...
What is the use of “ref” for reference-type variables in C#?
...ng your dogs leash to friend for passing a reference by-value... it breaks down quickly though, because I think you would probably notice if your friend traded-up your shitzu to a doberman before he handed you back the leash ;-)
– corlettk
Jun 7 '09 at 12:12
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IE7 Z-Index Layering Issues
...acing position:relative; z-index:-1 on my main body content my header drop down content suddenly displayed above the body content in ie7 (it was already displaying without issue in all other browsers and in ie8+)
The problem with that was then this disabled all hover and click actions on all conten...
AngularJS : ng-model binding not updating when changed with jQuery
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Just call.. $scope.$digest() to settle. will it slow down ?
– Thant Zin
Jun 4 '13 at 2:52
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Creating email templates with Django
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Looks good to me. I've trimmed this down and thrown it into a ticket to add django.shortcuts.send_templated_mail: code.djangoproject.com/ticket/17193
– Tom Christie
Nov 10 '11 at 18:13
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Why must a lambda expression be cast when supplied as a plain Delegate parameter
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I find it fascinating that people have the cheek to vote down an answer merely because they personally don't find it appealing. If it's wrong and you know this, then say what's wrong with it. If you can't do so, then you have no basis for a downvote. If it's epically wrong then say...
Is there a method that calculates a factorial in Java?
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Good point! My first question was if 90!/85! simplified down because of a common denominator of 5, but actually, it was the common denominator of 85!. 90!/85! = 90*89*88*87*86*85!/85!. You can see it more clearly in that equality.
– HoldOffHunger
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Permanently add a directory to PYTHONPATH?
...t it did not work because my repos directory did not have _init_.py. Going down one directory further: /Users/joey/repos/specificRepo did the trick. Now python can traverse any downward directory connected to the specificRepo directory that contains a init.py !
– Qiao Yi
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How to “inverse match” with regex?
... value:
^(?:(?!Andrea).)*$
This is called a tempered greedy token. The downside is that it doesn't perform well.
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