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Does MySQL ignore null values on unique constraints?
I have an email column that I want to be unique. But I also want it to accept null values. Can my database have 2 null emails that way?
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How do I convert a byte array to Base64 in Java?
Okay, I know how to do it in C#.
4 Answers
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When is an interface with a default method initialized?
While searching through the Java Language Specification to answer this question , I learned that
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instantiate a class from a variable in PHP?
I know this question sounds rather vague so I will make it more clear with an example:
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What is the relationship between the docker host OS and the container base image OS?
I'm not certain that I'm asking the right question... but while I have been reading everything docker that I can get my hands on I see that I can install Docker on Ubuntu 12.04 (for example) and then I can install a Fedora container or a different version of ubuntu? (there is an example where the us...
jQuery date formatting
How can I format the date using jQuery. I am using below code but getting error:
22 Answers
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Convert array of integers to comma-separated string
It's a simple question; I am a newbie in C#, how can I perform the following
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Can inner classes access private variables?
This errors out when I compile with class Outer::Inner' has no member named `var'
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Android: Create spinner programmatically from array
I'm all new to Android and I'm trying to create a spinner programmatically and feeding it with data from an array, but Eclipse gives me a warning that I can't handle.
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