Re: How to get normalized data from tekst column

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От David Johnston
Тема Re: How to get normalized data from tekst column
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Msg-id 9FED2DBB-305E-4B61-AF6D-0F75618049B8@yahoo.com
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Ответ на How to get normalized data from tekst column  ("Andrus" <kobruleht2@hot.ee>)
Ответы Re: How to get normalized data from tekst column  ("Andrus" <kobruleht2@hot.ee>)
Список pgsql-general
On Nov 24, 2011, at 8:47, "Andrus" <kobruleht2@hot.ee> wrote:

Project table contains salesman names and percents as shown
below. Single comment column contains  1-2 salesman names and commissions.
How select normalized data from this table ?
 
Andrus.
 
CREATE TABLE project (
id char(10) primary key,
comment char(254)
);
 
insert into test values ('2010-12', 'Aavo 19%, Peedu 15%');
insert into test values ('2010-22', 'Lauri-21%,Peedu 15%');
insert into test values ('2011-33', 'Taavi 21%');
 
How to create select statement in Postgresql 8.1.23 which
selects this data as normalized table like
 
CREATE TABLE commission (
projectid char(10),
salesman  char(5),
commission n(2) )
 
result using data above should be
 
 
'2010-12', 'Aavo', 19
'2010-12', 'Peedu', 15
'2010-22', 'Lauri', 21
'2010-22', 'Peedu', 15
'2011-33', 'Taavi', 21

Regular Expressions are your friend here.  If you do not know them you should learn them; though if you ask nicely someone may just provide you the solution you need.

Split-to-array and unnest may work as well.

All this said, you are currently using an unsupported version of PostgreSQL and I do not know what specific functionality you have to work with.

David J.

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