At the moment im concentrating on london postal codes but future would be us zip codes too
On 24 Apr 2012, at 18:09, Rick James <rja...@yahoo-inc.com> wrote: > Please be more precise about the rules. In the US, "12345-6789" would become > "12345". This would follow a different rule. > > Is your rule "stop after the first digit"? That gets quite messy in SQL, and > would be better done in an application code. > > See also > http://dev.mysql.com/doc/refman/5.0/en/string-functions.html#function_substring-index > > RLIKE can distinguish digits from letters, but won't help you isolate them. > >> -----Original Message----- >> From: Tompkins Neil [mailto:neil.tompk...@googlemail.com] >> Sent: Tuesday, April 24, 2012 9:11 AM >> To: [MySQL] >> Subject: Postal code searching >> >> Hi >> >> I've a number of different postal codes in a system for example >> >> WC1B 5JA >> WC1H 8EJ >> W1J 7BX >> W1H 7DL >> NW1 1NY >> >> I can use like statements for example >> >> SELECT * FROM postal_codes WHERE zip LIKE 'W1%' giving me >> >> W1J 7BX >> W1H 7DL >> >> In addition I have a number of abbreviated postal codes like >> >> W1 >> WC1 >> WC2 >> NW1 >> >> Now, if I know the postal code W1J 7BX what is the best way using a >> MySQL query to get the abbreviated postal codes W1. Same if I have the >> postal code WC1H 8EJ, how do I get the abbreviated postal codes WC1 >> >> Can I use any matching patterns ? >> >> Thanks, >> Neil -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/mysql
