Rows as Columns - Mailing list pgsql-sql

From James Taylor
Subject Rows as Columns
Date
Msg-id 002801c2f8ad$4888c9f0$4500a8c0@theplague
Whole thread Raw
Responses Re: Rows as Columns  (chester c young <chestercyoung@yahoo.com>)
Re: Rows as Columns  (Joe Conway <mail@joeconway.com>)
List pgsql-sql
Hi everyone, I just joined this list a few days ago...

Now, I have a question, and I'm not even sure if this is possible
without having to make numerous statements.

Say I have two tables with the following columns and this data:

types:
id   | name
-----------------
1    | first_name
2    | last_name
3    | phone_number

data:
id   | data     | t_key | cust_id
---------------------------------
1    | Sam      | 1     | 1
2    | Smith    | 2     | 1
3    | 555-1212 | 3     | 1
4    | John     | 1     | 2


Types basically describes what the column type is.  t_key references the
type, cust_id is the user id.

i'd want to do something like "select t.name, d.data from types t, data
d where d.cust_id = 1"

This would return something like:

name         | data
------------------------
first_name   | Sam
last_name    | Smith
phone_number | 555-1212


Well, I need it to somehow return that data in this format:

first_name   | last_name  | phone_number
----------------------------------------
Sam          | Smith      | 555-1212



The information in Types is not static, so I can't declare the col names
based on what you see here.

Any suggestions on this one?



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