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MySQL ON DUPLICATE KEY - last insert id?
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What is a Python egg?
I'm new to Python and am just trying to understand how its packages work. Presumably "eggs" are some sort of packaging mechanism, but what would be a quick overview of what role they play and may be some information on why they're useful and how to create them?
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Why is unsigned integer overflow defined behavior but signed integer overflow isn't?
Unsigned integer overflow is well defined by both the C and C++ standards. For example, the C99 standard ( §6.2.5/9 ) states
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psql: FATAL: Peer authentication failed for user “dev”
when i create a new user, but it cannot login the database.
I do that like this:
12 Answers
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How do I pass a class as a parameter in Java?
Is there any way to pass class as a parameter in Java and fire some methods from that class?
10 Answers
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how to delete all cookies of my website in php
I'm wondering if I can delete all my website's cookies when a user click on logout, because I used this as function to delete cookies but it isn't work properly:
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Move the most recent commit(s) to a new branch with Git
I'd like to move the last several commits I've committed to master to a new branch and take master back to before those commits were made. Unfortunately, my Git-fu is not strong enough yet, any help?
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machine learning libraries in C# [closed]
Are there any machine learning libraries in C#? I'm after something like WEKA .
Thank you.
6 Answers
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How to update attributes without validation
I've got a model with its validations, and I found out that I can't update an attribute without validating the object before.
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Dynamically generating a QR code with PHP [closed]
I'm trying to generate QR codes on my website. All they have to do is have a URL in them, which a variable on my site will provide. What would be the easiest way to do this?
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