sqlite remove non utf-8 characters

问题

I have an sqlite db that has some crazy ascii characters in it and I would like to remove them, but I have no idea how to go about doing it. I googled some stuff and found some people saying to use REGEXP with mysql, but that threw an error saying REGEXP wasn't recognized.

Here is the error I get:

sqlalchemy.exc.OperationalError: (OperationalError) Could not decode to UTF-8 column 'table_name' with text ...

Thanks for the help

回答1:

Well, if you really want to shoehorn a rich unicode string into a plain ascii string (and don't mind some goofs), you could use this:

import unicodedata as ud
def shoehorn_unicode_into_ascii(s):
    # This removes accents, but also other things, like ß‘’“”
    return ud.normalize('NFKD', s).encode('ascii','ignore')

For a more complete solution (with somewhat fewer goofs, but requiring a third-party module unidecode), see this answer.

Really, though, the best solution is to work with unicode data throughout your code as much as possible, and drop to an encoding only when necessary.

回答2:

django.utils.encoding has a greate set of robust unicode encoding and decoding functions.

来源：https://stackoverflow.com/questions/3586903/sqlite-remove-non-utf-8-characters