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Add unique constraint to combination of two columns
I have a table and, somehow, the same person got into my Person table twice. Right now, the primary key is just an autonumber but there are two other fields that exist that I want to force to be unique.
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Header files for x86 SIMD intrinsics
Which header files provide the intrinsics for the different x86 SIMD instruction set extensions (MMX, SSE, AVX, ...)? It seems impossible to find such a list online. Correct me if I'm wrong.
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PHP shell_exec() vs exec()
I'm struggling to understand the difference between shell_exec() and exec() ...
4 Answers
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How to make a element expand or contract to its parent container?
The goal is to have the <svg> element expand to the size of its parent container, in this case a <div> , no matter how big or small that container may be.
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I've found my software as cracked download on Internet, what to do?
So, after 6 months of hard work finally released my application. Today I found the first web site where people download it cracked, and I was wondering if any of you fellow programmers know how to react to such stuff?
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What to do about Eclipse's “No repository found containing: …” error messages?
I'm running Eclipse's Helios EE bundle on Linux to which I added the subversive plugins, the m2e Maven integration and the Mylin connector for Trac. For the last couple of weeks I've been trying to install updates, and every time I get back a message like
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Split comma-separated strings in a column into separate rows
I have a data frame, like so:
6 Answers
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Vim: What's the difference between let and set?
What's the difference between let and set in the vim editor?
5 Answers
5
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Choosing a Java Web Framework now? [closed]
we are in the planning stage of migrating a large website which is built on a custom developed mvc framework to a java based web framework which provides built-in support for ajax, rich media content, mashup, templates based layout, validation, maximum html/java code separation. Grails looked like a...
Remove non-ascii character in string
and i need to remove all non-ascii character from string,
5 Answers
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