On 02/20/2012 08:49 AM, Andreas wrote:
Hi,
is there a way to split up phone numbers?
I know that's a tricky topic and it depends on the national phone number format.
I'm especially interested in a solution for Germany, Swizerland and Austria.
I've got everything in a phone number column that makes hardly sense like:
+49432156780
0049 4321 5678 0
04321/5678-0
and so on...
Those 3 samples are actually the same number in different notations.
Aim would be to get a normalized number split up in 4 seperate columns
nr_nation
nr_city
nr_main
nr_individual
so I end up with
49 4321 5678 0 for central
49 4321 5678 42 for Mr. Smith
Is this doable?
It would be a start to at least split off nr_nation and nr_city.
I would do it in multiple passes. Trim everything out (spaces, slashes, etc)
to try and get a constant number, then use the length to determin the different
types of numbers, then use substring to pull out the parts.
-- for shorter phone numbers
select '49' as nr_nation,
substring(phone from 1 for 4) as nr_city,
etc...
where length( regexp_replace(phone, '[^\d]', '', 'g') ) = 10
and nr_nation is null;
-- for longer phone numbers
select substring(phone from 1 for 2) as nr_nation,
substring(phone from 3 for 4) as nr_city,
etc...
where length( regexp_replace(phone, '[^\d]', '', 'g') ) = 12
and nr_nation is null;
-- etc
-Andy
--
Sent via pgsql-general mailing list (pgsql-general@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-general
