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How to drop SQL default constraint without knowing its name?

In Microsoft SQL Server, I know the query to check if a default constraint exists for a column and drop a default constraint is: ...
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Convert nested Python dict to object?

I'm searching for an elegant way to get data using attribute access on a dict with some nested dicts and lists (i.e. javascript-style object syntax). ...
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What's the Linq to SQL equivalent to TOP or LIMIT/OFFSET?

How do I do this 14 Answers 14 ...
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How to overcome TypeError: unhashable type: 'list'

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Extracting double-digit months and days from a Python date [duplicate]

Is there a way to extract month and day using isoformats? Lets assume today's date is March 8, 2013. 2 Answers ...
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How to determine if a decimal/double is an integer?

How do I tell if a decimal or double value is an integer? 14 Answers 14 ...
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How do I time a method's execution in Java?

Most of the searches on Google return results for timers that schedule threads and tasks, which is not what I want. 40 Answ...
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Why is pow(a, d, n) so much faster than a**d % n?

I was trying to implement a Miller-Rabin primality test , and was puzzled why it was taking so long (> 20 seconds) for midsize numbers (~7 digits). I eventually found the following line of code to be the source of the problem: ...
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Get week of year in JavaScript like in PHP

How do I get the current weeknumber of the year, like PHP's date('W') ? 19 Answers 19...
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How to calculate time elapsed in bash script?

I print the start and end time using date +"%T" , which results in something like: 20 Answers ...