password limitations in SQL Server and MySql

Posted by asteroid on Stack Overflow See other posts from Stack Overflow or by asteroid
Published on 2010-01-08T20:45:01Z Indexed on 2010/05/30 20:02 UTC
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mysql

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database

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security

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passwords

Does MySql 5.1 and SQL Server 2008 (Web edition, Standard) have any functional password limitations other than length limits? Are metacharacters in any form a bad idea to use, like bang, pipe, hash, any slash, carrot, and so on?

I know that MySql 5.1 has a password length limitation of 16 characters that is hardcoded, but I was wondering, are any metacharacters (i.e. non alphanumerics) a bad idea to use? And is this true in SQL Server 2008 Web edition, Standard?

So specifically: can symbols like:

/`~>:}{[]^ be used successfully?

I would hope it doesn't matter to the database, but I don't understand enough about password storage in enterprise database systems yet to know for sure, and I was looking for confirmation or an explanation.

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