Can primary index be a CHAR in MySQL?

Posted by FFish on Stack Overflow See other posts from Stack Overflow or by FFish
Published on 2010-02-18T00:18:26Z Indexed on 2010/05/23 7:50 UTC
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sql

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mysql

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primary-key

My primary indexes are unique reference numbers like 002345 and 000023.

If I format them as integers I loose my zero's. They need to be 6 digits.

Can I use CHAR? I don't need any auto increments.

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