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Oracle: how to UPSERT (update or insert into a table?)
...swered Oct 27 '08 at 11:12
Tony AndrewsTony Andrews
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Effect of a Bitwise Operator on a Boolean in Java
The bitwise operators are supposed to travel variables and operate on them bit by bit. In the case of integers, longs, chars this makes sense. These variables can contain the full range of values enforced by their size.
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What is Castle Windsor, and why should I care?
I'm a long-time Windows developer, having cut my teeth on win32 and early COM. I've been working with .NET since 2001, so I'm pretty fluent in C# and the CLR. I'd never heard of Castle Windsor until I started participating in Stack Overflow. I've read the Castle Windsor "Getting Started" guide, b...
Understanding “randomness”
I can't get my head around this, which is more random?
28 Answers
28
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Redis key naming conventions?
...directly querying for all keys which starts with user: there is a keys command for that. This command should be however used only for debugging purpose since it's O(N) because it's searching through all keys strored in database.
More appropriate solution for this problem is to create dedicated key,...
git ahead/behind info between master and branch?
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Here's a trick I found to compare two branches and show how many commits each branch is ahead of the other (a more general answer on your question 1):
For local branches:
git rev-list --left-right --count master...test-branch
For remote branches:
git rev-list --left-rig...
Getters \ setters for dummies
I've been trying to get my head around getters and setters and its not sinking in. I've read JavaScript Getters and Setters and Defining Getters and Setters and just not getting it.
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How can one print a size_t variable portably using the printf family?
I have a variable of type size_t , and I want to print it using printf() . What format specifier do I use to print it portably?
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How to squash all git commits into one?
... keep all the commit messages you could first do git log > original.log and then edit that for your initial commit message in the new repository:
rm -rf .git
git init
git add .
git commit
or
git log > original.log
# edit original.log as desired
rm -rf .git
git init
git add .
git commit -F ...
Sort points in clockwise order?
...e other.
Using it you can construct a less-than relation to compare points and determine the order in which they should appear in the sorted array. But you have to define where is the beginning of that order, I mean what angle will be the starting one (e.g. the positive half of x-axis).
The code fo...