> Hi.
>
> Using mySQL 4.1.22, I'd like to carry out an SQL query to find a
> string containing acute vowels.
>
> mytable:
> - item1:
> --- firstname: Antonio
> --- lastname: Fernández
> --- comments: he's from Spain
>
> My SQL query:
> ------
> SELECT id FROM mytable WHERE MATCH(firstname, lastname, comments)
> AGAINST ('+"fernandez"' IN BOOLEAN MODE) ORDER BY firstname, lastname
> --------
>
> If mytable is in latin1, it works fine. But if mytable is in utf8
> (it's the case) it doesn't work. How can I change my SQL query to
> match 'Fernández' in UTF8 within the table?If the data in the UTF-8 table consists of UTF-8 characters then it should work fine. If it this is the case but it doesn't work, I suspect the issue is that whatever client you are using to send your query is using a different character set. (I got stuck on this a few months back). The solution for my app was to issue a SET NAMES 'utf8' call when I first connected to ensure everything was using UTF-8. See http://dev.mysql.com/doc/refman/5.0/en/charset-connection.html. Looking at your application, I am guessing you are going to be getting the search terms from a user. This could be annoying for them if they want to find this record, but just provided 'fernandez' (i.e. no accent). I resolved this issue by adding extra columns in my DB containing 'standardised' versions of the 'real' data (e.g. firstname_std). Then, when processing a search, I 'standardise' the user input and match this with the standardised column. If you're interested, this is the PHP code I use to 'standardise': /** * Standardise a string. This converts accented characters to the non-accented equivalents * makes it lowercase and removes any characters that are not [a-z], [0-9] or @. * * These standardised strings are stored in the database alongside their 'normal' counterparts. * Searches are performed by standardising the query and comparing the standardised forms. This * enables us to match regardless of punctation, whitespace, accented chars etc. * * @param string Input string to standardise * @return string Standardised version of the input string */ public static function StandardiseString($strInput) { $strInput = Search::TranslateAccentedChars($strInput); $strInput = strtolower($strInput); return preg_replace('/[EMAIL PROTECTED]/', '', $strInput); } /** * Translate accented characters to their non-accented counterparts * * @param string Input string * @return string String with accented characters replaced */ public static function TranslateAccentedChars($strInput) { $strAccentedChars = "¥µÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝßàáâãäåæçèéêëìíîïðñòóôõöøùúûüýÿ"; $strNonAccentedChars = "SOZsozYYuAAAAAAACEEEEIIIIDNOOOOOOUUUUYsaaaaaaaceeeeiiiionoooooouuuuyy"; return strtr($strInput, $strAccentedChars, $strNonAccentedChars); } HTH, Edward -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
