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Updating MySQL primary key
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235
Next time, use a single "alter table" statement to update the primary key.
alter table xx dro...
difference between each.with_index and each_with_index in Ruby?
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2 Answers
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Enable SQL Server Broker taking too long
I have a Microsoft SQL server 2005 and I tried to enable Broker for my database with those T-SQL:
4 Answers
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What do (lambda) function closures capture?
...e a new scope each time you create the lambda:
>>> adders = [0,1,2,3]
>>> for i in [0,1,2,3]:
... adders[i] = (lambda b: lambda a: b + a)(i)
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>>> adders[1](3)
4
>>> adders[2](3)
5
The scope here is created using a new function (a lambda, for brevity...
How to merge 2 List and removing duplicate values from it in C#
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295
Have you had a look at Enumerable.Union
This method excludes duplicates from the return set. ...
Using the Underscore module with Node.js
...ate: /<%=([\s\S]+?)%>/g },
template: [Function] }
> _und.max([1,2,3])
3
> _und.max([4,5,6])
6
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Math.random() versus Random.nextInt(int)
... bits in its mantissa, so it is uniformly distributed in the range 0 to 1-(2^-53).
Random.nextInt(n) uses Random.next() less than twice on average- it uses it once, and if the value obtained is above the highest multiple of n below MAX_INT it tries again, otherwise is returns the value modulo n...
Difference between passing array and array pointer into function in C
...eters treated as though they were declared as pointers? Here's why:
6.3.2.1 Lvalues, arrays, and function designators
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3 Except when it is the operand of the sizeof operator or the unary & operator, or is a
string literal used to initialize an array, an expression that has type ‘‘array...