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views:

271

answers:

1
+1  Q: 

MySQL String match percentage

In MySQL, how can I compare two strings and get matching percentage. Something like this:

compare(needle, haystack) = percentage

compare("foo", "food") = 0.75
compare("foo", "foobar") = 0.5
compare("foo", "foofoo") = 1.0
compare("foo", "fo") = 0.0

I hope you get the idea :)

+1  A: 

Please see:

Mitch Wheat  2009-10-18 14:37:18
Based on the examples, I don't think he wants edit distance.
Lukáš Lalinský  2009-10-18 14:38:30
Perhaps it will give the poster an idea of how to proceed?
Mitch Wheat  2009-10-18 14:43:07

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